AGA "CHILLBUSTER I" 

12028 E. Philadelphia St. Whittier , CA 90601 U.S.A.

(562) 696-8718 FAX (562) 698-3510

E-Mail: gaslogs@riwinc.com Web http://www.riwinc.com

CB-1 2-03

Assembly, Installation, and Operation

Instructions for Rasmussen "Single Burner"

Manual, Switch, or Remote

Natural and Propane Gas Log Room Heater Models:

18" or 24" SINGLE BURNER Manual Control (K,W,KW)(18, 24)-C1A,C-M-(N,P)

30" SINGLE BURNER Manual Control (K,W,KW)(30)-C1B,D-M-(N,P)

18", 24" or 30" DOUBLE FACE Manual Control DF(K,W,C)(18,24,30)-DFC1,C1C-M-(N,P)

18" or 24" SINGLE BURNER Switch Control (K,W,KW)(18, 24)-C1A,C-S-(N,P)

30" SINGLE BURNER Switch Control (K,W,KW)(30)-C1B,D-S-(N,P)

18", 24" or 30" DOUBLE FACE Switch Control DF(K,W,C)(18, 24, 30)-DFC1,C1C-S-(N,P)

30" SINGLE BURNER Remote Control (K,W,KW)(30)-C1B,D-R-(N,P)

18" or 24" SINGLE BURNER Remote Control (K,W,KW)(18, 24)-C1A,C-R-(N,P)

18", 24" or 30" DOUBLE FACE Remote Control DF(K,W,C)(18, 24, 30)-DFC1,C1C-R-(N,P)

Read these Instructions carefully and retain them for future use.

THESE GAS LOG HEATERS ARE CERTIFIED TO THE FOLLOWING STANDARDS:

• UNVENTED ROOM HEATER ANSI Z21.11.2a 2001

• VENTED DECORATIVE APPLIANCE ANSI Z21.60b 2001 * CGA 2.26b-2001

Design certified for installation only in a solid-fuel burning masonry or UL 127 factory-built fireplace or

in a listed ventless firebox enclosure.

DO NOT install this appliance in a factory-built fireplace that includes instructions stating it has not been

tested or should not be used with unvented gas logs.

WARNING: If the information in this manual is not followed exactly, a fire or explosion may result

causing property damage, personal injury or loss of life .

WARNING:

Improper installation, adjustment,

alteration, service or maintenance can cause

property damage, personal injury or loss of life. Read

these instructions thoroughly before installation.

For assistance or additional information, consult

your gas log dealer, qualified installer, service

agency or gas supplier.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical switch; do not use

any phone in your building.

• Immediately call your gas supplier from a

neighbors phone. Follow the gas supplier's

instructions.

• If you cannot reach your gas supplier,

call the fire department.

FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors and

liquids in the vicinity of this or any other appliance..

INSTALLATION AND SERVICE: Installation and service must be performed by a

qualified installer, service agency or the gas supplier..

This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is

installed. Provisions for adequate combustion and ventilation air must be provided.

Refer to Section "PROVISIONS FOR ADEQUATE COMBUSTION AND VENTILATION

AIR" (pages 4 and 5.) .

1
ALL APPLICATIONS (VENTED and VENT FREE OPERATION)

IMPORTANT NOTICE

• Due to high temperatures, the appliance should be located out of traffic and away from

furniture and draperies.

• Children and adults should be alerted to the hazard of high surface temperature and should

stay away to avoid burns or clothing ignition.

• Young children should be carefully supervised when they are in the same room with the

appliance.

"WARNING: Any change to this heater or its controls can be dangerous."

• Do not place clothing or any other flammable material on or near the appliance.

• Any safety screen or guard removed for servicing an appliance must be replaced prior to

operating the heater.

• Installation and repair should be done by a qualified service person. The appliance should

be inspected before use and at least annually by a professional service person. More

frequent cleaning may be required due to excessive lint from carpeting, bedding material,

etc. It is imperative that control compartments, burners and circulating air passageways of

the appliance be kept clean.

"WARNING: Failure to keep the primary air opening(s) of the burner(s)

clean may result in sooting or property damage."

• Do not use this CHILLBUSTER as a Vent Free Heater in sleeping quarters, bathrooms or

recreational vehicles.

• Keep burner and control compartment clean. See page 10 of these instructions.

• Any outside air ducts in the fireplace shall be permanently closed at time of installation.

• This appliance may be installed in an after market, permanently located, manufactured 

(mobile) home, where not prohibited by local codes.

• This appliance is for use with the type of gas indicated on the rating plate. This appliance is

not convertible for use with other gases. .

IMPORTANT INFORMATION

1. This CHILLBUSTER is for installation only in a solid-fuel burning fireplace or listed ventless firebox enclosure.

2. Solid fuels shall not be burned in a masonry or UL 127 factory builtfireplace where a CHILLBUSTER is installed.

3. The minimum size (in inches) of the fireplace in which this CHILLBUSTER is to be installed must be as follows:

SET

SIZE

MODEL

NUMBER

FRONT

WIDTH HEIGHT DEPTH

18

24

30

18

24

30

18

24

30

18

24

30

(K,W,KW)(18)-C1C-(M, S, R)-(N,P) 23,000 BTU/HR

(K,W,KW)(24)-C1C-(M, S, R)-(N,P) 23,000 BTU/HR

(K,W,KW)(30)-C1D-(M, S, R)-(N,P) 23,000 BTU/HR

(K,W,KW)(18)-C1A-(M, S, R)-(N,P) 40,000 BTU/HR

(K,W,KW)(24)-C1A-(M, S, R)-(N,P) 40,000 BTU/HR

(K,W,KW)(30)-C1B-(M, S, R)-(N,P) 40,000 BTU/HR

DF(K,W,C)(18)-DFC1C-(M, S, R)-(N,P) 23,000 BTU/HR

DF(K,W,C)(24)-DFC1C-(M, S, R)-(N,P) 23,000 BTU/HR

DF(K,W,C)(30)-DFC1C-(M, S, R)-(N,P) 23,000 BTU/HR

DF(K,W,C)(18)-DFC1-(M, S, R)-(N,P) 40,000 BTU/HR

DF(K,W,C)(24)-DFC1-(M, S, R)-(N,P) 40,000 BTU/HR

DF(K,W,C)(30)-DFC1-(M, S, R)-(N,P) 40,000 BTU/HR

24

30

36

24

30

36

24

30

36

24

30

36

17

17

17

17

17

17

17

17

17

17

17

17

11

11

11

11

11

11

16

16

16

16

16

16

4. When operated as a VENT FREE heater, the minimum clearances from the fireplace opening to combustible

materials must be maintained as outlined in section "CLEARANCES TO COMBUSTIBLES" (page 5).

5. A fireplace screen must be in place when the CHILLBUSTER is in operation and, unless other provisions for

combustion air are provided, the screen shall have opening(s) for introduction of combustion air. Glass doors are not

certified with the CHILLBUSTER. However, if used, Glass Doors must be wide open when the burner is on

to allow air for safe combustion, cooling of components and venting. Adequate clearances must be provided around

fireplace opening for adequate combustion and proper operation.

6. The minimum inlet gas supply pressure for the purpose of input adjustment shall be 5 inches of water column on

natural gas and 11 inches of water column on Propane gases.

7. The maximum inlet gas supply pressure shall be 7 inches of water column on natural gas and 14 inches of water

column on Propane gases. The Propane source must be regulated. Never connect CHILLBUSTER directly to an

unregulated Propane tank.

8. The installation and the provision for combustion and ventilation air must conform with the National Fuel Gas Code

ANSI Z223.1 latest edition. See "PROVISIONS FOR ADEQUATE COMBUSTION AND VENTILATION AIR"

(pages 4 and 5).

2
ALL APPLICATIONS (VENTED and VENT FREE OPERATION)

9. The CHILLBUSTER and its individual shutoff valve must be disconnected from the gas supply piping system

during any pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa). The CHILLBUSTER must

be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing

of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa).

10. The area around the CHILLBUSTER must be clear and free from combustible materials, gasoline and any other

flammable vapors and liquids. Provide adequate clearances for servicing and proper operation.

11. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect

the appliance and to replace any part of the control system and any gas control which has been under water.

IMPORTANT SAFEGUARDS

• This appliance is for supplemental heating

only. It should not be used as the primary heat

source for a dwelling.

• WARNING: During manufacturing, fabricating, and

shipping, various components of CHILLBUSTER are

treated with certain oils or films. These are not harmful but

may produce annoying smoke and smells as they are

burned off during the initial operation of the appliance,

possibly causing headaches or eye or lung irritation. This

is a normal and temporary occurrence. The initial break-in

operation should last 2-3 hours with the burner at the

highest setting. Provide maximum ventilation by opening

windows, doors, and the chimney flue to allow odors to

dissipate. The only odor remaining after this initial break-in

will be the normal odors associated with the combustion

of Natural or Propane gas.

• This appliance is equipped with an ODS (OXYGEN

DEPLETION SENSOR) pilot light safety system designed

to shut itself off if not enough fresh air is available.

Additional ventilation may be obtained by opening a

window or a door to another room.

• Although your CHILLBUSTER is very realistic in

appearance, it is not a real wood burning fireplace.

Matches, paper, garbage, or any other material must not

be thrown on top of the logs or into the flames.

• Avoid contact with the logs, grate, or any other part

which may be hot.

• Always ensure that the fireplace screen is closed

when the appliance is operating.

• State or local codes may only allow operation of this

appliance in a vented configuration. Check your state or

local codes. If not permitted, you may install and operate

CHILLBUSTER as a vented appliance. (See "VENTED

OPERATION" below).

WARNING: Before installing in a solid fuel burning fireplace,

the chimney flue and firebox must be cleaned of soot, creosote, ashes

and loose paint by a qualified chimney cleaner.

WARNING: Do not allow fans to blow directly into the fireplace. Avoid

any drafts that alter burner flame patterns.

WARNING: Do not use a blower insert, heat exchanger insert or

other accessory not approved for use with this heater.

PREPARATION OF FIREPLACE

1. Ensure firebox and chimney damper/flue are

thoroughly cleaned (if previously used for either gas

or wood burning.) Failure to adequately clean

firebox, damper and flue may cause fumes,

sooting and/or fire.

2. If local valve is not already installed, install a gas valve 

on the supply line in or just outside the fireplace.

3. Any outside air ducts and/or ash dumps in the

fireplace shall be permanently closed at time of

installation of this CHILLBUSTER.

4. Use Propane Gas resistant compound on all pipe

fittings (not on connections with flared fitting).

5. Test new piping for leaks using soap solution. 

Do not use open flame to flame test.

All Soot Must Be Completely Removed From Firebox Prior To Installing!

VENTED OPERATION

Damper Stop

Clamp

Damper

Chimney

Flue

VENTED APPLICATION

1. The minimum permanent free opening of the fireplace

chimney or chimney damper must be at least 2 9 sq. inches

based upon a minimum chimney height of at least 10 feet.

2. The chimney damper must be fixed in a manner to maintain

permanent free opening as (outlined in item above) at all times.

To accomplish this, install the damper clamp (provided) on the

edge of the damper blade to prevent its closing, or drill holes in

the damper .

3
VENT FREE OPERATION

PROVISIONS FOR ADEQUATE COMBUSTION AND VENTILATION AIR

This heater shall not be installed in a "confined" space or unusually tight construction unless provisions

are provided for adequate combustion and ventilation air.

Confined Or Unconfined Space Determination:

The National Fuel Gas Code defines a confined space as a space whose volume is less than 50 cubic feet per 1,000

Btu per hour (4.8m3 per kW) of the aggregate input rating of all appliances installed in that space and an unconfined

space as a space whose volume is not less than 50 cubic feet per 1,000 Btu per hour (4.8m3 per kW) of the aggregate

input rating of all appliances installed in that space. Rooms communicating directly with the space in which the

appliances are installed, through openings not furnished with doors, are considered a part of the unconfined space.

Calculations To Determine Confined Or Unconfined Space:

1. Determine number of rooms (including adjoining rooms with doorless passageways or ventilation grates.)

Example: Living room/dining room + Kitchen

2. Determine the Total Volume of the Space (width x length x height).

Example: Living room/dining room 14' x 20' x 8' = 2240 cu ft

Kitchen 8' x 12' x 8' = 768 cu ft

Total Volume of Space 3008 cu ft

3. Divide the total space volume by 50 cuft to determine the Maximum Supportable Btu/Hr.

Example: 3008 cu ft ÷ 50 = 60.160 x 1000 = 60,160

Maximum Supportable Btu/Hr = 60,160 Btu/Hr.

4. Add the rated (Btu/hr) of all fuel burning appliances in the "space" to determine Actual Btu/Hr Used.

Example: Vent free gas log heater 40,000 Btu/Hr

Gas water heater 32,000 Btu/Hr

Actual Btu/Hr Used 72,000 Btu/Hr

Note: Do not include direct vent gas appliances.

5. Compare Maximum Supportable Btu/Hr against Actual Btu/hr Used.

•If Actual Btu/Hr Used is greater than Maximum Supportable Btu/Hr then space is CONFINED.

•If the Actual Btu/Hr Used is less than Maximum Supportable Btu/Hr then space is UNCONFINED.

60,160 Btu/Hr = Maximum Supportable Btu/Hr

 - 72,000 Btu/Hr = Actual Btu/Hr Used

 - 11,840 Btu/Hr = Excess Non-Supportable Btu/Hr

In the example, because the Actual Btu/Hr Used exceeds the Maximum Supportable Btu/hr the space would

be considered a Confined Space requiring you to either increase the Maximum Supportable Btu/Hr,

decrease the Actual Btu/Hr Used or operate as a Vented Appliance (see page 3).

Adequate Combustion And Ventilation Air Options:

• Increase the Maximum Supportable Btu/Hr by adding to the number of rooms which comprise the "Space".

To do this you must ether completely remove the door to an adjoining room or provide two permanent ventilation

grills; one within 12" of the ceiling and another within 12" of the floor.

• Increase the Maximum Supportable Btu/Hr by providing extra fresh air using ventilation grills and ducts to the

outdoors. You must provide two permanent openings, one within 12" of the ceiling and another within 12" of the

floor. Connect these directly to the outdoors or spaces open to the outdoors, e.g., attics or crawl spaces.

• Follow the National Fuel Gas Code NFPA 54/ANSI Z223.1, Section 5.3, Air for Combustion and Ventilation for

required size of ventilation grills or ducts.

• Lower the Actual Btu/Hr Used by relocating other gas burning appliances outside the "space" or installing a

lower Btu/Hr heater. In the example, the maximum Btu/Hr of the heater could be no more than 28,160 Btu/Hr.

For our example, we have chosen to add to our Total Volume of the Space by removing the door to an adjoining

study and increasing our Maximum Supportable Btu/Hr by the volume of the additional room. The new "space"

calculations, including the additional adjoining room are: Living room/dining room & Kitchen 3008 cu ft

Study (9' x 10' x 8') 720 cu ft

Total volume of space 3728 cu ft

The new Maximum Supportable Btu/Hr = (3728 cu ft ÷ 50 cu ft ) x 1000 = 74,560 Btu/Hr

74,560 Btu/Hr = Maximum Supportable Btu/Hr

 - 72,000 Btu/Hr = Actual Btu/Hr Used

 2,560 Btu/Hr = Remaining Supportable Btu/Hr

Because the Actual Btu/Hr used is now less than the Maximum Supportable Btu/Hr, the space is

considered an Unconfined Space. No additional fresh combustion and ventilation air would be required.

4
VENT FREE OPERATION

COMBUSTION AIR CALCULATIONS WORKSHEET

1. Room Width Length Height W x L x

 H=Vol. (ft3)

1a.

1b.

1c.

1d.

2. Total Volume (ft3)sum of Volume (ft3) of all rooms (sum lines 1a. thru 1d.) 2.

3. Max Supportable Btu/Hr=Total Volume (ft3) ÷ 50 x 1000 (line 2 ÷ 50 x1000) 3.

4. 4a. 3 Btu/hr 4b.3 Btu/hr 4c. 

3 Btu/hr 4d. 3 Btu/hr

Actual Btu/hr used = Sum Btu/hr of all fuel burning appliances inside the space

identified as rooms 1a. thru 1.b (sum line 4a thru 4d.) 4.

5. (Maximum Supportable Btu/Hr) minus (Actual Btu/hr Used) (Line 3 - line 4) 5. *

* If Line 5 is greater than zero, the Actual Btu/Hr Used is less than the Maximum Supportable Btu/Hr

and the space is considered UNCONFINED. No additional fresh combustion and ventilation is required.

* If Line 5 is zero or less, the Actual Btu/Hr Used is greater than Maximum Supportable Btu/Hr and

the space is CONFINED. You must either increase the Maximum Supportable Btu/Hr, decrease

the Actual Btu/Hr Used or operate as a Vented Appliance (see page 3).

WARNING: If the area in which the heater may be operated is smaller than that defined

as an unconfined space or if the building is of unusually tight construction, provide

adequate combustion and ventilation air by one of the methods described in the

National Fuel Gas Code, ANSI Z223.1, 1992, Section 5.3 or applicable local codes.

Unusually tight construction is construction where:

a) Walls and ceilings exposed to the outside atmosphere have a continuous water

vapor retarder with a rating of 1 perm or less with openings gasketed or sealed, and

b) Weather stripping has been added on openable windows and doors, and

c) Caulking or sealants are applied to areas such as joints around window and door

frames, between sole plates and floors, between wall panels, at penetrations for

plumbing, electrical, and gas lines, and at other openings.

WARNING: CARBON MONOXIDE POISONING MAY LEAD TO DEATH

When used without fresh air, gas log sets may give off carbon monoxide, an odorless, colorless,

poisonous gas. Some people, pregnant women, persons with heart or lung disease, anemia, or under

the influence of alcohol and persons at high altitudes are more affected by carbon monoxide than

others. Early signs of carbon monoxide poisoning resemble the flu: Headache, dizziness, and/or

nausea. If you have these signs, the gas log may not be installed or working properly, or the chimney

flue may be blocked. GET FRESH AIR AT ONCE! Have gas log set and chimney flue serviced

before using again.

OPEN A WINDOW AN INCH OR TWO FOR ADEQUATE COMBUSTION AND

VENTILATION AIR WHEN USING YOUR VENT FREE GAS LOG ROOM HEATER

MINIMUM CLEARANCES TO COMBUSTIBLES

MINIMUM CLEARANCES

TO SIDE WALLS AND CEILING

42"

15 1/2"

Figure 1

Clearances to Combustible Construction:

Side wall: 15 1/2" from side of fireplace opening. Figure 1

Ceiling: 42" from top of fireplace opening. Figure 1

Mantel: See Charts and Diagrams shown at Figures 2 and 3

NOTE: "Clearances to Combustible Construction" are those distances

required to ensure that a fireplace mantel or facing will not catch fire. In

most cases they should also be adequate to prevent any discoloration or

warping due to heat. However, each and every Gas Log Installation

(CHILLBUSTER included) presents a different and completely unique set

of circumstances involving many variables beyond the control of the Gas

Log Manufacturer. These include paint or finish composition, previous

exposure to heat, methods and quality of construction, air flow patterns,

glass doors, fans or blowers, etc.. Because of these variables, we cannot

guarantee that heat warping or discoloration will never occur. The potential

for heat warping or discoloration may exist whether you are burning a

CHILLBUSTER, some other manufacturer's Gas Log or even wood.

5
VENT FREE OPERATION

FIREPLACE HOODS

A fireplace hood deflects heat away from the fireplace face and mantel, reducing the potential for heat related warping

or discoloration. The use of a fireplace hood is highly recommended. Fireplace Hoods are offered by many

leading fireplace manufacturers.

Mantel Clearance Without Hood:

Non-Combustible

or Heat Resistant

Material

Horizontal 

Projection from 

Face of Fireplace

Top of Firebox 

opening

30"+ 28" 25" 20" 12"

 Vertical Distances 

to Underside of Mantel

.75"

2.5"

6"

8"

10"

Height Above Projection Out

 Opening From Face

 0 -12" 0"

 12" - 20" 3/4"

 20" - 25" 2 1/2"

 25" - 28" 6"

 28" - 30" 8"

 30" plus 10" 

FIREBOX

Figure 2

Mantel Clearance With Hood*:

Non-Combustible

or Heat Resistant

Material

Horizontal Projection 

from Face of Fireplace

Top of Firebox 

opening

Fireplace Hood with

minimum 4" horizontal

projection beyond 

vertical surface above

hood

10" 12" 15" 17" 20"+

1.5"

2.5"

6"

8"

10"

 Vertical Distances

to Underside of Mantel

Height Above Projection Out

 Opening From Face

 0" - 10" 0"

 10" - 12" 1 1/2"

 12" - 15" 2 1/2"

 15" - 17" 6"

 17" - 20" 8"

 20" plus 10"

FIREBOX

Figure 3

4"

* Standard Fireplace Hood with a minimum 4 inch

 horizontal projection beyond vertical surface

 ABOVE hood as provided by most major

 fireplace manufacturers

 .

IF YOU CANNOT MEET THESE MINIMUM CLEARANCES YOU

MUST OPERATE HEATER WITH CHIMNEY FLUE DAMPER OPEN

(Operate as a VENTED Heater - See Page Three).

ALL APPLICATIONS (VENTED and VENT FREE OPERATION)

ASSEMBLY AND INSTALLATION

INSTALLING CHILLBUSTER BURNER UNIT INTO FIREPLACE

DIM A

CENTER OF FIRE BOX

FRONT DIM A = 1" 

Minimum

REAR Figure 4 1. Place grate/control assembly inside firebox or listed

ventless fireplace enclosure. Center grate left to right

with the front portion of the grate assembly no less than 1"

from the opening of the firebox. See figure 4.

2. Connect CHILLBUSTER to gas supply line with supplied

semi rigid aluminum connector, or other flexible connector.

Use a pipe joint compound which is resistant to the action of

Propane gases on all pipe threaded joints except on the flared

connector fittings.

3. Turn on the gas valve at the supply line in the fireplace.

Check connections for gas leaks by using a soapy solution.

Do not use open flame.

VOLCANIC ASH PLACEMENT

Sprinkle the VOLCANIC ASH around the firebox floor.

NEVER PLACE VOLCANIC ASH ON TOP OF ANY BURNER.

6
ALL APPLICATIONS (VENTED and VENT FREE OPERATION)

LOG PLACEMENT

C1A, C1C, C1B, and C1D

1. 18" sets have 5 logs. 24" sets have six logs.

2. Place largest log (FRONT LOG) in the front of the grate and the second largest log (REAR LOG) on the rear of the

grate behind the LOCATOR PINS. (Figures 5 and 6).

3. Place both Right and Left LARGE TOP LOGs across the FRONT and REAR logs with the LOCATOR PINS

inserted into the drilled holes located on the bottom of both LARGE TOP LOGs. (Figures 5 and 6).

4. Place (R) and (L) SMALL TOP LOGs (24 and 30" models) across the FRONT LOG and LARGE TOP LOGs.

To ensure optimum performance, logs must be placed on Burner as depicted.

Do not Allow Top Logs to Cross Flame Path.

v

Front Log

Rear Log

Locator

Pins

v

v

v

Locator

Pins

.

v

Top Log

Large (L)

Top Log

Large (R)

.

v

v

v

v

Top Log .

Small (L)

Top Log

Small (R)

(24-30" 

models)

TOP VIEW

FRONT VIEW

Front

Log

Rear Log Top Log

Large (R)

Top Log

Large (L)

Top Log

Small (L)

Top Log

Small (R)

Front

Log

Rear Log

Top Log

Large (R)

Top Log

Small (R) Top Log

Large (L)

Top Log

Small (L)

Main burner (24" & 30"

sets)

(24" & 30"

sets)

Figure 5 Figure 6

WARNING: Failure to position parts in accordance with these diagrams

or failure to use only parts specifically approved with this heater

may result in property damage or personal injury.

DFC1 and DFC1C (Double Face)

1. Place the two largest logs (FRONT LOGS) between the grate log guide and the grate teeth. Figures 7 and 8.

2. Place both LARGE TOP LOGs across the FRONT logs with the LOCATOR PINs inserted into the drilled hole 

located on the bottom of both LARGE TOP LOGs. (Figures 7 and 8)

3. Place the R and L SMALL TOP LOGs across the FRONT LOGs and Large TOP LOGs with LOCATOR PINS

inserted into the drilled holes located on the bottom of both SMALL TOP LOGs. (Figure 8)

TO ENSURE OPTIMUM PERFORMANCE, LOGS MUST BE PLACED ON BURNER AS DEPICTED.

DO NOT ALLOW SMALL TOP LOGS TO CROSS FLAME PATH.

7
ALL APPLICATIONS (VENTED and VENT FREE OPERATION)

DFC1 and DFC1C (Double Face) Log Placement (continued):

Front 

Logs

v

.

Large

Top Log

.

v

Large

Top Log

.

v

v

. .

v

v

v

v

Small

Top Logs

Small

Top Logs

v

v

v v

Log 

Grate

Figure 7 Guide

TOP VIEW

FRONT VIEW

Top Logs

Small 

Front Log 

Front Log 

Top Logs

Small 

Front Log 

Top Logs

Small 

Top Log

Large 

Burner

Top Log

Large 

Top Log

Large 

Top Log

Large 

Figure 8

WARNING: Failure to position parts in accordance with these diagrams

or failure to use only parts specifically approved with this heater may result in property

damage or personal injury.

LIGHTING AND OPERATION

C1A-M, C1C-M, C1B-M, C1D-M, DFC1-M and DFC1C-M (MANUAL CONTROL)

Rasmussen

Manufactured by:

Whittier, CA USA

 Ignitor Button

Figure 9

Manual Valve Pilot Lighting, Operation, and Shutting Down:

1. Slightly push in Valve Knob and turn to “SEASON OFF”. Figure 10

2. Before lighting, wait at least five minutes (10 minutes for LP gas) to

allow gas which may have accumulated around burner to escape.

3. Slightly push in Valve Knob and turn to “PILOT/OFF”. Figure 10

4. Depress Valve Knob until air is bled and gas flows to pilot. Press 

PIEZO IGNITOR Button (Figure 9) to light pilot. Continue to hold 

valve knob in until Pilot remains lit when knob is released.

5. Slowly turn knob to “ON”. The rear burner will light from the pilot. The

front burner will light from the carry-over tube.

6. If appliance fails to light or if pilot goes out, repeat steps 1 through 5 .

7. For complete shutdown, push knob in and turn to “SEASON OFF”.

Pilot

Access

Port

AT PILOT POSITION

SLIGHT PUSH TO

 TURN OFF

FULL PUSH TO 

LIGHT

OFF ON

. . . 

Valve Knob

Figure 10

C1A, C1C, C1B, C1D, DFC1 and DFC1C-S/R (SWITCH or REMOTE CONTROL)

Millivolt Valve Pilot Lighting:

1. Depress and turn Gas Cock Dial to "OFF" position. (see Figure 12)

2. Place the Control Selector Switch ("S" models-Figure 11) or the Remote 

Receiver Switch ("R" models-Figure 13) into the OFF position. Place any Accessory 

Controls (Remote Control, Wall Switch or Wall Timer) to "OFF". Place Wall Thermostat to 

lowest temperature setting or Off.

3. Wait at least 5 minutes to allow gas which may have accumulated around burner to escape.

4. Depress and turn Gas Cock Dial to "PILOT" position.

5. Depress and hold Gas Cock Dial until air is bled and gas flows to pilot.

 SELECTOR SWITCH

Figure 11

SWITCH OFF REMOTE

 ON ACCESS

 ON

8
ALL APPLICATIONS (VENTED and VENT FREE OPERATION)

Millivolt Pilot Lighting (continued):

6. Press Piezo Ignitor Button to

light pilot. Continue to hold in the

Gas Cock Dial until the Pilot flame

remains lit when knob is released

(approximately 60 to 90 seconds). If

Pilot does not remain lit, repeat steps

1 through 5 and allow more time after

Pilot Lighting before releasing knob.

7. Turn Gas Cock Dial to "ON". "PILOT" POSITION "ON" POSITION "OFF" POSITION

PILOT

+

 v

+

+

+

+

 v

+

+

+

 v

+

PILOT ADJUST 

COVER CAP Figure 12

NOTE: The Gas Cock Dial has complete control of gas to pilot and burner. The Gas Cock Dial cannot be

turned to "OFF" without first depressing dial in "PILOT" position and then rotating clockwise to "OFF".

Switch Control (Manual ON-OFF): After successful pilot lighting, allow 60-90 seconds for the

Thermogenerator to heat up. To turn burner(s) on, place Control Selector Switch in the "ON" position (see

Figure 11). To turn burner off (pilot remains lit) place Control Selector Switch in the "OFF" position.

NOTE: Flame size at the burner is adjustable at the Gas Cock Dial (see Figure 12).

Ultrasonic Remote Control (Manual or Remote ON-OFF)

Before you start: Both the transmitter and receiver require 9 volt batteries 

to operate in remote control.

The blue and black receiver wire leads are for the optional sound producing 

device (CRACKLER Model CF5).

The receiver must be protected from overheating. Locate receiver well away

from heat. Accessory REMOTE LOG HOUSE (Model "RH") is 

available for use as a heat resistant "log" in which the receiver portion of a 

Wireless remote option may be located.

Operation Tips: This is a sound operated remote (unlike TV remotes which

SWITCH OFF REMOTE

 ON ACCESS

 ON

When switching 

from REMOTE to 

OFF, first turn set 

off using the 

transmitter.

Remote: Switch to 

REMOTE ACCESS 

ON. Aim, press button 

and hold transmitter at 

receiver.

Manual: Switch from 

OFF to SWITCH ON; 

SWITCH ON to OFF

Figure 13

are Infrared and operate instantly) and requires you to aim and hold the transmitter for 1 to 3 seconds to 

operate. Manual Operation: (Receiver switch position ON or OFF) does not require batteries.

Remote Operation: Requires good batteries. If you turn the gas log on using the remote control and then turn 

the set off by sliding the receiver switch from REMOTE to OFF, when you replace the switch to REMOTE it will 

remain in the last selected remote position (in this case ON) and turn the gas log on. (see Figure 13)

To shutdown overnight or for any prolonged period, slide receiver switch to "OFF".

Remote Accessory Control (Remote ON-OFF): Place manual switch in the "REMOTE ACCESS

ON" position. Burner "ON" or "OFF" is now controlled by the position of the accessory control being used with the

burner. Individual operating instructions for each Accessory Option are included with the individual accessory.

Remote Accessory Wiring:

Wiring from the Accessory Control (Remote,

Thermostat or Switch) is connected to the two

outside terminals of the Control Selector

Switch as shown in Figure 14.

NOTE: Wire length for Thermostat or Remote

controls should not exceed 20 feet.

Thermostat wiring should be 20 AWG Type CL2.

From THERMOPILE To 

ACCESSORY

CONTROL

Valve

Terminals

Control 

Selector 

Switch

Figure 14

Outside Terminal

Outside Terminal

Remote Accessory Options:

ULTRA-SONIC WIRELESS REMOTE (Model "F10-AB)

INFRARED WIRELESS REMOTE WITH THERMOSTAT (Model "IRRC")

WALL SWITCH (Model "WS-1")

WALL THERMOSTAT (Model "TS-1")

WALL TIMER (60 MINUTE TIMER) (Model "WT-1")

CRACKLER Sound Generator option for F10 AB or IRRC (Model "CF5")

• Accessory REMOTE LOG HOUSE (Model "RH") is available for use as a heat resistant "log" in which the

receiver portion of Wireless remote option F10 AB or IRRC may be located.

• Accessory CRACKLER LOG HOUSE (Model "CH") is available for use as a heat resistant "log" in which the

CRACKLER Sound Generator option for both the F10 AB and IRRC wireless remotes may be located.

Complete Shutdown (Including Pilot): Place Control Selector Switch in "OFF". Turn "OFF" all

Accessory Switches. Slightly push and turn Gas Cock Dial to "OFF".

9
ALL APPLICATIONS (VENTED and VENT FREE OPERATION)

Pilot Adjustment and Operation:

The Pilot flame should be steady and soft blue surrounding 1/8 

inch of the thermocouple tip as shown in Figure 15.

OP AMERICA Standard (Manual Models):

1. To adjust, insert a narrow long stem screw driver throughPilot 

Access Port (see figure 10) to turn pilot adjustment screw .

2. Turn clockwise for less pilot flame.

3. Turn counterclockwise for more pilot flame.

OP AMERICA Millivolt (Switch Model)

NOTE: The OP America Millivolt Pilot/ODS is equipped with a

THERMOGENERATOR (Switch Models)

LP THEMOCOUPLE

NAT GAS 

THERMOCOUPLE

PIEZO SPARKER

PILOT FLAME

Figure 15

AIR INTAKE

HOLES

quick acting thermocouple allowing gas flow to the pilot after approximately 30-40 seconds. An additional 60 to 

90 seconds time is required to adequately heat the thermogenerator and allow gas to the main burner(s).

1. If adjustment is necessary, use a narrow long stem screw driver to turn pilot adjustment screw (see Figure 12).

2. To adjust turn clockwise for less pilot flame, counterclockwise for more pilot flame.

Normal Operating Characteristics:

Each and every CHILLBUSTER that leaves the factory is quality checked to ensure compliance with our

American Gas Association certification. This check includes an operational test to ensure both satisfactory

combustion and proper operation.

Each installation site for any vent free heater presents its own unique combustion environment. Specific factors

such as weather tightness of the home, size of the room in which the heater is installed, central heating, ceiling

fans,drafts, altitude, the size of the firebox, paint or soot inside the firebox, etc., all have an influence on the proper

operation of any vent free gas log set. A normally operating

CHILLBUSTER Gas Log Heater will possess the following

characteristics:

• Clean burning combustion, which, after normal break in, will produce

no soot or smoke.

• A full bodied, lively flame. The flame will be blue at the base and a

combination of blue and yellow at the body and tips. Figure 16.

• Produce no odor other than the normal odors associated with the

combustion of Natural or Propane gas.

• Will produce water vapor (increase indoor humidity) which may be

beneficial during the dry heating season.

Figure 16

Customer Responsibilities And Annual Maintenance:

• Keep the area around the CHILLBUSTER free and clear from debris. From time to time, visually check pilot and 

burner flames for proper appearance (Figures 15 and 16). Normal flame color should be yellow body surrounded

by a hard blue haze.

• The pilot, air shutters and burners must be free of lint and dirt for optimum performance. Air shutters which have 

been closed or are obstructed with debris will not allow sufficient combustion air into burner. Air shutters should be

periodically cleaned of debris. Use compressed air or a soft bristle brush to clear pilot and burner(s) air intakes. Air

shutters should not be altered from factory settings. "WARNING: Failure to keep the primary air

opening(s) of the burner(s)clean may result in sooting or property damage."

• Obstructed Pilot Air Intake Ports result in an improper gas/air mixture and a weak pilot flame. Weak pilot flame 

is the NUMBER 1 SERVICE ISSUE RE NUISANCE SHUT-OFF. Using canned compressed air , pipe 

cleaner or an artist's brush, clean out the opposing Air Intake Ports located at base of Pilot (where gas supply line 

attaches to pilot). (Figure 15)

• Do not operate in a dirty firebox or in a previously used firebox which has not had all soot completely removed or it's

chimney flue cleaned. Previously used fireboxes must have flue and stack professionally cleaned by a chimney

sweep. Additionally, firebox walls and damper must also be thoroughly cleaned of all burn residue and soot using a

damp cloth, sponge or brush.

• Do not operate this set with any logs other than the RASMUSSEN CHILLBUSTER Refractory Logs specifically

designed and approved for use with this Burner System.

• Do not use with blower inserts or heat exchangers.

• If used, glass doors must be wide open when burner is on.

• Do not remove Rating Plate/Warning Tags. These tags serve you and any future user as an integral safety and

identification component of the CHILLBUSTER gas log heater. Removing these tags voids the warranty.

• WARNING: Do not allow fans to blow directly into fireplace. Avoid any drafts that alter burner

flame patterns. Do not place blower inside area of firebox. Ceiling fans may create drafts that alter burner flame

patterns. Sooting and improper burning may occur. Sooting can settle on household surfaces outside the fireplace.

• During periods of heavy use, inspect frequently for evidence of sooting. If sooting is present, discontinue

use until source of sooting is determined and corrected.

• Maintain log positioning as shown in Figures 5 and 6 or 7 and 8 at all times.

10
HOW TO ORDER PARTS

Parts can be ordered through the supplier from whom

you purchased your CHILLBUSTER.

When ordering parts, always specify (From information

available on name plate attached to grate) the following:

1. Model number of the CHILLBUSTER.

2. Serial number of the CHILLBUSTER.

3. Type of gas (natural or propane Gas).

4. The name of the part and part number from parts list.

Save these instructions

Manufactured By: RASMUSSEN IRON WORKS, INC. 

12028 E. Philadelphia Street

Whittier, California 90601

CONSUMER RECORD CARD

Fill in blanks below for your permanent record.

DATE PURCHASED 

MODEL NO. 

DATE INSTALLED 

SERIAL NO. 

INSTALLED BY: 

GAS TYPE: 

DEALER: 

PARTS LIST C1A/C, C1B/D and DFC1/C1C

(Manual, Switch or Remote)

1

6

3

4

5

6

7

9

10

20

21

22

24

26

31

30

23

25

2

8

32

33

40

41

42

43

50

51

60

61

62

1. O22 Burner (40,000 BTU) or 9. Push Button Ignitor DFC1/C1C Double Face 43. Valve Knob

O38 Burner (23,000 BTU) 10. Inlet Aluminum Connector 30. Grate

2. Pilot Manifold Tubing C1A/C and C1B/D 31. Front Logs (2) MILLIVOLT SWITCH SETS

3. O.D.S. Assembly (Natural) or 20. Grate 32. Top Logs (2) Large 50. Manual 3 Way Switch and

O.D.S. Assembly (Propane) 21. Front Log 33. Top Logs (4) (Small) Cover

4. Regulator Inlet Brass Elbow 22. Rear Log 51. Millivolt Gas Valve

5. Burner Manifold Tubing 23. Top Log Large (Left) MANUAL CONTROL SETS

6. Orifice Holder 24. Top Log Small (Left) 40. Gas Pressure Regulator (Nat) MILLIVOLT REMOTE SETS

7. Orifice (Natural) or 25. Top Log Small (Right) 24" & or Pressure Regulator (LP) 60. Receiver Box and Cover

Orifice (Propane) 30" Only 41. Combination Gas Valve 61. Receiver

8. Regulator Outlet Brass Elbow 26. Top Log Large (Right) 42. Valve Knob Extender (30" Only) 62. Transmitter

11
TWO YEAR CONSUMER PRODUCT WARRANTY

The following warranty has been drafted to comply with the MAGNUSON-MOSS WARRANTY ACT applicable to

products manufactured after July 4, 1975. It replaces and supersedes any warranty in this package or in any printed

literature.

LIMITED WARRANTY:

RASMUSSEN IRON WORKS INC, 12028 E.

Philadelphia Street, Whittier California, U.S.A.., Warrants

this Gas Log Set and accessories against defects in

materials and workmanship, and suitable for a particular

purpose, for a period of:

(1) LOG CASTING - All logs are guaranteed against

burnout in the original installation for two years from date

of initial purchase.

(2) BURNERS - 2 years from date of initial purchase.

(3) SAFETY CONTROLS - 2 years from date of initial

purchase.

THIS WARRANTY IS FOR THE BENEFIT OF

THE ORIGINAL PURCHASER.

WARRANTY ADJUSTMENT:

(1) RASMUSSEN agrees to repair or furnish a

replacement for, but not remove or install any product or

component which proves defective within the above

warranty and appropriate time periods stated.

(2) BUYER shall notify RASMUSSEN of any defect

within this warranty no later than thirty (30) days after a

defect is discovered.

(3) No product will be accepted for return or replacement

without written authorization of RASMUSSEN. Before

returning merchandise, write to RASMUSSEN giving full

details of the complaint and a copy of sales receipt or

other evidence of purchase date. Merchandise returned

without proof of purchase date will be serviced out-of

warranty at our prevailing service and parts rates. If

merchandise was damaged in transit, file claim

immediately with the carrier. Products returned must be

addressed as follows:

RASMUSSEN IRON WORKS INC

12028 E. PHILADELPHIA STREET

WHITTIER CALIFORNIA 90601

Shipping charges must be pre-paid by the buyer.

REPAIR OR REPLACEMENT UNDER THIS

WARRANTY WILL BE SHIPPED FREIGHT

COLLECT.

EXCLUSIONS FROM WARRANTY:

(1) The foregoing warranty is limited solely as set forth

herein and applies only for the periods designated

above.

(2) RASMUSSEN shall not be liable for any loss,

damage, incidental or consequential damages of any

kind, whether based upon warranty, contract, or

negligence, arising in connection with the sale, use, or

repair of the product. Some states do not allow the

exclusion or limitation of incidental or consequential

damages, so the above limitation or exclusion may not

apply to you.

(3) The maximum liability of RASMUSSEN in connection

with this limited warranty shall not in any case exceed the

contract price paid for the product claimed to be

defective or unsuitable.

(4) This warranty does not extend to any product

manufactured by RASMUSSEN which has been

subjected to misuse, neglect, accident, improper

installation, or use in violation of instructions furnished

by RASMUSSEN. Do not remove Rating Plate/Warning

Tags. These tags serve you and any future user as an

integral safety and identification component of the

CHILLBUSTER gas log heater. Removing these tags

voids the warranty.

(5) This warranty does not extend to or apply to any unit

which has been repaired or altered at any place other

than RASMUSSEN IRON WORKS INC factory, or by

persons not expressly approved by RASMUSSEN.

(6) Components manufactured by any supplier other

than RASMUSSEN shall bear only that warranty made by

the manufacturer of that product.

(7) Freight damage, cracking from thermal shock, and

color changes occur from causes beyond

manufacturer's control and are not covered by any

warranty.

THIS WARRANTY GIVES YOU SPECIFIC LEGAL

RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS

WHICH VARY FROM STATE TO STATE.

RASMUSSEN IRON WORKS, INC. shall be held

harmless from any and all claims by the buyer as a result

of injury or damage to an ultimate user or other person

caused by the product sold herein by the seller to the

buyer, whether the injury or damage results from the

assembly, installation, operation, shipment, storage or

manufacture of this product. RASMUSSEN IRON

WORKS, INC. makes no warranties, expressed or

implied, other than those expressly stated herein.

CB WARRRANTY 2-03

12
CPW-CB-2-96

CHANGES (next)

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