HearthStone Quality Home Heating Products, Inc ®
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WFP-75 Model 8411
FRAMING when installing a fresh air intake kit or a forced air kit
•
See
Appendix 3: Installing the Fresh Air Intake Kit
for installation instructions of a fresh air intake kit
(L)
.
•
See Appendix 6 – Forced Air Distribution kit (94-57110) for more details on installation.
Refer to the building code or the local code for regulations concerning the need to install finishing
material inside the chase around the fireplace.
MINIMUM MEASUREMENTS FOR
FRESH AIR INTAKE (L)*
MINIMUM MEASUREMENTS FOR
FORCED AIR KIT (K)*
J
12" (305 mm)
M
18" (457 mm)
* The fresh air intake kit may be installed on the right side and/or at the bottom of the fireplace.
Forced air distribution kit may be installed on either sides of the fireplace.
- Framing dimensions are for reference only. These measurements are recommended to prevent
the ducts from being inside the standoff or have too tight duct curves. Smaller dimensions can be
used depending on the size and type of duct as well as the configuration of the installation.
- Forced air duct: HVAC duct, as per ULC S110 or UL 181, class 0 or class 1, must withstand
temperatures up to 250oF.
CAUTION
•
FLEXIBLE PIPE IN THE FRAMING ENCLOSURE MUST NOT BE WITHIN STANDOFFS.
CAUTION
•
VALUES (M) AND (N) ARE MINIMUM MEASUREMENTS. THEY MAY NEED TO BE INCREASED TO
ALLOW INSTALLATION OF A FRESH AIR INTAKE KIT OR FORCED AIR KIT, OR DEPENDING ON
THE FINISH MATERIAL USED.
