Form B

FURNACE INFORMATION

Fill out the following information for EACH furnace at your facility (list each furnace individually):

Furnace Unit ID Furnace Type

Does this furnace 

share a stack or 

control device with 

other units?

If Yes, List the Unit 

IDs that share a 

stack with this 

furnace

Original Date of 

Construction 

(mo/yr)

Most Recent 

Rebuild 

(mo/yr)

Estimated 

future rebuild 

(mo/yr)

Max Operating 

Furnace 

Temperature 

(F)

Average 

Temperature of 

Molten Glass 

Exiting Furnace 

(F)

Average Mass 

of Molten Glass 

Exiting the 

Furnace (lbs)/hr

Average 

Volume of 

Molten Glass 

Exiting the 

Furnace (ft3)/hr

Average Pull 

Rate (tons/hr)

Total Interior 

Surface Area of 

Furnace below 

Glass Melt Line 

(ft2)*

Total Interior 

Surface Area of 

Furnace above 

Glass Melt Line 

(ft2)*

Glass Contact 

Floor

Breast Wall - 

below Glass 

Melt Line

Breast Wall - at 

and above 

Glass Melt Line

Side Wall - 

below Glass 

Melt Line

Side Wall - at 

and above 

Glass Melt Line

Back Wall - 

below Glass 

Melt Line

Back Wall -at 

and above 

Glass Melt Line Crown

Port 

Neck/Stack Throat

Example: Oxyfuel Furnace E1 Oxy Fuel Yes

Oxyfuel Furnace 

E2 and ESS 

Furnace 2 12/1999 01/2005 01/2015 50% 10% 50% 10% 50% 10% 50% 50% 10% 10%

29-41 DM-1 Oxy Fuel

This furnace has a 

dedicated DEP but 

the discharge of the 

DEP shares a 

common stack.

29-42 DM-2 ?/2001 01/2001 04/2012

2710 2066

14160.00 85.82 7.08 1018 962 100%-50% Cr2O3 Not Appl. 100%- 30% Cr2O3 100%-46% Cr2O3 100%- 30% Cr2O3 Not Appl. 100%- 30% Cr2O3

40%- 30% 

Cr2O3 

60%-0% 

Cr2O3

100%-50% 

Cr2O3

74%-50% 

Cr2O3, 26%-

95% Cr2O3

29-4

29-42 DM-2 Oxy Fuel

This furnace has a 

dedicated DEP but 

the discharge of the 

DEP shares a 

common stack.

29-41 DM-1 ?/1999 09/2011 No date set

2660 2213

13760.00 83.39 6.88 1018 962 100%-50% Cr2O3 Not Appl. 100%- 30% Cr2O3 100%-46% Cr2O3 100%- 30% Cr2O3 Not Appl. 100%- 30% Cr2O3 100%- 30% Cr2O3 100%-50% Cr2O3 74%-50% Cr2O3, 26%- 95% Cr2O3 29-42 

Furnace Unit ID

Type of 

Control Device

Pollutants 

Controlled

Date of Original 

Installation 

Date of Next Major 

Maintenance Event 

(mo/yr)

Type of 

Control Device

Pollutants 

Controlled

Date of 

Original 

Installation 

Date of Next 

Major 

Maintenance 

Event (mo/yr)

Type of Control 

Device

Pollutants 

Controlled

Date of Original 

Installation 

Date of Next 

Major 

Maintenance 

Event (mo/yr)

Oxyfuel Furnace E1 ESP SO2 05/1991 07/1905 Baghouse PM 05/1991 07/1905 NA NA NA NA

29-41 DM-1 DEP PM 2001 No date set29-42 DM-2 DEP PM 1999 No date set

00000000

* If there are special design characteristics to be considered, please submit drawings or schematics to indicate how surface area calculations were made.

Percentage of Chromite/Chromium Oxide 

List the TOTAL number of glass-melting furnaces at your 

facility (include any furnaces not currently operating). Do 

not group furnaces that share a stack and/or control device together. Do not include pot and marble units, specialty, or glass marble melting furnaces. 

Control Device 1 Control Device 2 Control Device 3

For each furnace you must attach a purchase order or similar documentation that verifies the chrome percentages of the refractory materials listed below. 

Wool Fiberglass 2012 ICR