Heatilator • LM42 • Installers Manual • 4087-901 • Rev A • 04/14/16
6
1. Locating Fireplace & Chimney
Location of the fireplace and chimney will affect perfor
-
mance.
• Install within the warm airspace enclosed by the building
envelope. This helps to produce more draft, especially
during lighting and die-down of the fire.
• Installing the fireplace in a basement is not recommended
due to negative pressure concerns.
• Penetrate the highest part of the roof. This minimizes
the effects of wind loading.
• Locate termination cap away from trees, adjacent
structures, uneven roof lines and other obstructions.
• Minimize the use of chimney offsets.
• Consider the fireplace location relative to floor and ceiling
and attic joists.
• Take into consideration the termination requirements in
Marginal Location:
• Below peak
Location NOT recommended:
• Not the highest point of the roof
• Wind loading possible
Multi-level Roofs
Windward
Leeward
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
Not recommended in basement due
to high negative pressure concerns
that effect draft
Figure 2.2 Recommended Chimney Locations
Sections 4 and 5.
• 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 fireplace.
• Avoid installing the fireplace 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.
B. Design and Installation Considerations
Consideration
should be given to these factors before
deciding on a location.
NOTICE:
Check building codes prior to installation.
• Installation MUST comply with local, regional, state and
national codes and regulations.
• Consult local building inspector, fire officials or authorities
having jurisdiction over restrictions, installation inspection
and permits.
•
Before installing
, determine the following:
- Where the fireplace is to be installed.
- The chimney system configuration to be used.
- Facing, mantel, hearth construction and finishing
details.
- Gas supply piping.