Monessen Hearth IDV490NVC User Manual

57D0016

VENT INSTALLATION

VENT CONFIGURATIONS

Recommended block-off
plate (non-combustible
metal). Prevents
odors from chimney
entering room.

Exhaust

Any cracks or
damage inside
chimney must
be repaired.

The block-off plate
(AI42AK43 or
AI31AK33) must
seal intake to the
chimney space so
that air is drawn
down chimney for
combustion air.

Block-off Plate
- (AI42AK43 or
AI31AK331)
non-combustible
materials

Inlet

Masonry

Fireplace

NOTE: You may use either reline conﬁguration with a masonry or zero-clearance ﬁreplace.

Exhaust

Inlet

Termination Kit

490 unit - part # AI42TK43A

380 unit - part #AI31TK33A

4" (100mm) or 3" (75mm)

Exhaust UL 1777 Gas Liner

3" (75mm) Inlet

Figure 8 - Inlet and Exhaust Reline

Figure 9 - Exhaust Only Reline

UL-127,

Solid Fuel

Z.C. ﬁrebox