California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 4 - Construction Safety Orders › Article 28 - Miscellaneous Construction Tools and Equipment › Section 1706 - LP-Gas Fired Space Heaters

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) The floor areas immediately adjacent to
					 where such heaters are used must be kept clean and clear of combustible
					 materials.
(b) While a building is
					 under construction or alteration and before occupancy, not more than 60 U. S.
					 gallons of LP-Gas shall be permitted in any one room having a floor area of
					 2,000 square feet or less or in any floor area of 2,000 square feet in rooms
					 having floor areas exceeding 2,000 square feet. Under all other conditions the
					 provisions of Section
					 492 (a) of the
					 Unfired Pressure Vessel Safety Orders shall apply.
The maximum water capacity of individual containers shall
						be 245 pounds (nominal 30 gallons LP-Gas).
(c) No cylinders or tanks of LP-Gas shall be
					 filled or stored in any building under construction or renovation. The
					 cylinders shall be removed from the building and into an area at least 10 feet
					 from any building or source of ignition when being refilled.
Container safety relief devices and regulator relief
						vents shall be located at least 5 feet in any direction from air openings into
						sealed combustion system appliances or mechanical ventilation air
						intakes.
(d) The valves and
					 connections on the cylinders shall be protected by a cap or collar during
					 transportation, storage, and handling to prevent damage to the valves and
					 fittings, and shall be protected from damage while in use.
(e) The cylinders shall be in a position to
					 keep the safety valve in direct communication with the vapor space in the
					 cylinder at all times.
(f) When in
					 use, the LPG cylinder shall be installed so that the heat from the burner will
					 not increase temperature of the tank more than 10 degrees Fahrenheit above that
					 ambient at the installation after 1 hour of operation of the burner at full
					 capacity. "In use" means connected for use.
(g) Means shall be provided to prevent the
					 cylinders from being accidentally knocked over or upset. This can be done by
					 chaining or securing each cylinder to a column or wall or by use of a stand.
Containers, regulating equipment, manifolds, pipe,
						tubing, and hose shall be located to minimize exposure to high temperatures or
						physical damage.
(h)
					 Adequate ventilation close to the floor must be provided so any escaping or
					 unburnt gas is dispersed.
(i)
					 Heaters shall be equipped with a 100 percent safety pilot, have regulation
					 stamped LP-Gas hose and LP-Gas pressure regulator, and be in safe working
					 order.
NOTE: The fire department having jurisdiction in the area
						where LP-Gas is used in this service shall be notified before LP-Gas heaters
						are used.
(j) Heaters shall
					 be equipped with an approved regulator in the supply line between the fuel
					 cylinder and the heater unit. Cylinder connectors larger than ½ inch
					 pipe size shall be provided with an excess flow valve to minimize the flow of
					 gas in the event the fuel line becomes ruptured.
(k) Regulators and low-pressure relief
					 devices shall be rigidly attached to the cylinder valves, cylinders, supporting
					 standards, the building walls, or otherwise rigidly secured, and shall be so
					 installed or protected that the elements (rain, sleet, snow or ice) will not
					 affect their operation.
(l) Hose
					 shall be designed for a working pressure of at least 250 p.s.i. Design,
					 construction, and performance of hose, and hose connections shall have their
					 suitability determined by listing by a nationally recognized testing agency.
					 The hose length shall be as short as practicable. Hoses shall be long enough to
					 permit compliance with spacing provisions without kinking or straining, or
					 causing hose to be so close to a burner as to be damaged by heat.
(m) For temporary heating, heaters (other
					 than integral heater-container units) shall be located at least 6 feet from any
					 LP-Gas container. This shall not prohibit the use of heaters specifically
					 designed for attachment to the container or to a supporting standard, provided
					 they are designed and installed so as to prevent direct or radiant heat
					 application from the heater onto the containers. Blower and radiant type
					 heaters shall not be directed toward any LP-Gas container within 20
					 feet.
(n) Container valves,
					 connectors, regulators, manifolds, piping, and tubing shall not be used as
					 structural supports for heaters.
(o) If two or more heater-container units, of
					 either the integral or nonintegral type, are located in an unpartitioned area
					 on the same floor, the container or containers of each unit shall be separated
					 from the container or containers of any other unit by at least 20
					 feet.
(p) When heaters are
					 connected to containers for use in an unpartitioned area on the same floor, the
					 total water capacity of containers, manifolded together for connection to a
					 heater or heaters, shall not be greater than 735 pounds (nominal 300 pounds
					 LP-Gas capacity). Such manifolds shall be separated by at least 20
					 feet.
(q) The storage of containers
					 awaiting use shall comply with Section
					 1706(r) and
					 Unfired Pressure Vessel Safety Orders Section
					 492.
(r) Storage outside of buildings, for
					 containers awaiting use, shall be located from the nearest building or group of
					 buildings, in accordance with the following:
Quantity of LP-Gas
								stored:
Distance (feet)
500 lbs..........................
0
501 to 6,000
								lbs..........................
10
6,001 to
								10,000..........................
20
Over 10,000
								lbs..........................
25
(s) Containers shall be in a suitable
					 ventilated enclosure or otherwise protected against tampering.
(t) Storage locations shall be provided with
					 at least one approved portable fire extinguisher having a rating of not less
					 than 30-BC.
(u) Any welding on
					 containers on a construction site is prohibited.
1.
						Amendment filed 10-24-75; effective thirtieth day thereafter (Register 75, No.
						43).
2. Amendment of subsections (b), (c), (g), and (q) filed
						1-13-87; effective thirtieth day thereafter (Register 87,
						No.4).
Note: Authority cited: Section
						  142.3, Labor
						  Code. Reference: Section
						  142.3, Labor
						  Code.