Hearth and Home Technologies RHW-485 Installation of Fireplace, Install the Outside Air Kit

4	Installation of Fireplace
	CAUTION		WARNING
			Fire Risk
	Sharp Edges
			Asphyxiation Risk
	• Wear protective gloves and safety glasses
			Do not draw outside combustion air from:
	during installation.
			• Wall, floor or ceiling cavity.
			• Enclosed space such as an attic or
			garage.
A. Install the Outside Air Kit			• Close proximity to exhaust vents or
			chimneys.
Using an outside air kit is highly recommended to minimize
			Fumes or odor may result.
the effects of negative pressure within the structure. We
recommend you utilize the shortest duct run to optimize the
performance of the outside air kit. Cold air flow can be mini-			CAUTION
mized by putting a small dip in the duct creating a cold air
trap. This trap can also help prevent heat build-up and ex-		Risk of Smoke Spillage
hausting out the intake due to the stack effect. The outside		Outside air inlet must be located to prevent blockage
air kit inlet should be positioned in a manner that will not al-
		from:
low snow, leaves, etc. to block the inlet. In some installations
		•	Leaves
the air duct may need to be run vertically. In such an instal-
		•	Snow/ice
lation, a 3 ft (.914 m) height difference must be maintained
		•	Other debris
from the top of the uppermost chimney section to the outside
		Blockage may cause combustion air starvation.
combustion air inlet. See Figure 4.2.

See Figure 4.3 for proper placement of outside air inlet.

The outside air kit is installed on the left hand side of the fireplace. See Figure 4.4 for handle location/operation.

	Flexible Duct
	(not supplied)
	2 Wire Ties	Outside
Outside
		Air Collar
Air Shield
Figure 4.1 Outside Air Installation
	Heat & Glo • RHW-485 • 33221 Rev O • 08/06		13