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R
EDGE 60 Pellet Fireplace
NOTE
•It is necessary to use sealing strips of
•The use of a
C. Sealing at the Penetration of Building
Envelope
The fi rst step for successfully creating an air barrier system is to seal all of the holes in the building envelope. Too often, builders concentrate on air leakage through windows, doors, and walls, and ignore areas of much greater importance. A key source of
flues and ductwork is to attach and caulk a piece of plywood or foam sheathing material that covers the entire opening. Seal penetrations. If a fl ue requires a noncombustible clearance, use a noncombustible metal collar, sealed in place to span the gap.
Sealing these bypasses is critical to reducing air leakage in a home and maintaining the performance of insulation materials.
D. Frame the Fireplace
Figure 26.1 shows typical framing using combustible materials (2x4 lumber shown).
•Framing across the top of fi replace must be above top standoffs.
•See page 33 for detailed information regarding sub-fl oor material requirements.
Header MUST NOT be notched!
See Section 8 for outside air locations.
Outside Air is REQUIRED for all installations.
| A | B* | C** | D |
inches | 30 | 7 | ||
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|
|
|
|
mm | 699 | 762 | 972 | 178 |
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*If interior of chase will be drywalled, add the thick- ness to this measurement.
**Adjust header height for a raised platform under fi replace, Taking into consideration the maximum height allowed for loading fuel into the hopper.
C
B
| D = extra space needed |
| for securing fireplace to the floor |
D | and for outside air connection if |
A | it is installed on side of fireplace |
Figure 26.1 - Framing the Fireplace
December 6, 2011 | Page 27 |