Hearth and Home Technologies RHW-41, RHW-47 Complete the Enclosure, Gas Log/Lighter Provisions

RHW-41/RHW-47 INSTALLATION INSTRUCTIONS

15. Complete the Enclosure

Complete the fireplace enclosure, allowing space for outside air ducts and gas piping if desired. Electrical wiring should not come in contact with the fireplace. A minimum clearance of 1/2 in. must be maintained between the fireplace sides and the enclosure as well as the fireplace back and the enclosure. See pages 10-12 for framing details.

Note: Use only a noncombustible material to finish the face of the fireplace below the level of the front standoffs. A noncombustible material such as USG MICORE CV230 Mineral Fiber Board, or USG DUROCK Cement Board is recommended for this purpose.

CAUTION:

When using a gas log set, the fireplace damper must be set in the fully open position. This en- sures proper venting of combustion products.

16. Gas Log/Lighter Provisions

Knockouts are provided on both sides of the fireplace to allow for connection of a certified gas log lighter or a decorative gas appliance with a maximum input of 100,000 BTU/hour, incorporating an automatic gas shutoff device and complying with the Standard for Decorative Gas Appliances for Installation in Vented Fireplaces, ANSI Z21.60. The decorative gas appliance should be installed in accordance with the National Fuel Gas Code, ANSI Z223.1-1980. The side refractories are designed to allow 1/2 in. iron pipe to pass through. Use a noncombustible sealant to seal any opening between the gas pipe and refractory on the inside. Repack the insulation removed to seal around the gas pipe where it exits the side of the fireplace. A minimum 1-1/2 in. air clearance must be provided around the 1/2 in. iron pipe for a minimum of 4 in. beyond the fireplace. See Figure 16.

WARNING!

This fireplace was not tested by the fireplace manufacturer for use with an unvented gas log heater. To reduce risk of injury, do not install an unvented gas log heater in this fireplace un- less it has been specifically tested and listed by Underwriter’s Laboratories Inc. for use in this specific model fireplace. Unless the unvented gas log heater is tested and listed for use in this factory built fireplace, a fire hazard may be created that can result in a structure fire.

Figure 16 - Air Clearance Around Gas Line

CLEARANCES!

A minimum 1/2 in. air clearance must be maintained at the back and sides of the fireplace assembly.

Chimney sections at any level require a 2in. minimum air space clearance between the framing and chimney section.

08/04 26022 Rev i 19