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Heatilator • ECO-ADV-PS35/50 • 7058-142D • July 21, 2010
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Location of the appliance and chimney will affect
performance.
• Install through the warm airspace enclosed by the building
envelope. This helps to produce more draft, especially
during lighting and die-down of the fire.
• Penetrate the highest part of the roof. This minimizes the
affects of wind loading.
E. Locating Your Appliance & Chimney
Marginal Location:
• Below peak
Location NOT recommended:
• Not the highest point of the roof
• Wind loading possible
Multi-level Roofs
Windward
Leeward
Recommended:
Outside Air Intake
on windward side
NOT recommended:
Outside Air Intake
on leeward side
Recommended Location:
• Above peak
Recommended:
• Insulated exterior chase
in cooler climates
Recommended Location:
• Above peak
• Inside heated space
Location NOT recommended:
• Too close to tree
• Below adjacent structure
• Lower roof line
• Avoid outside wall
Marginal Location:
• Wind loading possible
Figure 24.1
• Locate termination cap away from trees, adjacent
structures, uneven roof lines and other obstructions.
• Minimize the use of chimney offsets.
• Consider the appliance location relative to floor and ceiling
and attic joists.
• Take into consideration the termination requirements on
Page 30.
To minimize the effects of negative air pressure:
• Install the outside air kit with the intake facing prevailing
winds during the heating season
• Ensure adequate outdoor air for all combustion appliances
and exhaust equipment
• Ensure furnace and air conditioning return vents are not
located in the immediate vicinity of the appliance
• Avoid installing the appliance near doors, walkways or
small isolated spaces
• Recessed lighting should be a “sealed can” design
• Attic hatches weather stripped or sealed
• Attic mounted duct work and air handler joints and seams
taped or sealed
C. Negative Pressure (Cont’d)
D. Thermostat Location
The thermostat’s location will have some affect on the
appliance’s operation.
When the thermostat is located close to the appliance, it may
require a slightly higher temperature setting to keep the rest
of the house comfortable.
If the thermostat location is in an adjacent room or on a
different floor level, you will notice higher temperatures near
the appliance.