Hearth and Home Technologies BE-36-C manual Constructing the Appliance Chase, Clearances

B. Constructing the Appliance Chase

A chase is a vertical boxlike structure built to enclose the gas appliance and/or its vent system. Vertical vents that run on the outside of a building may be, but are not required to be, installed inside a chase.

Construction of the chase may vary with the type of building. These instructions are not substitutes for the requirements of local building codes. Local building codes MUST be checked.

Chases should be constructed in the manner of all outside walls of the home to prevent cold air drafting problems. The chase should not break the outside building envelope in any manner.

Walls, ceiling, base plate and cantilever floor of the chase should be insulated. Vapor and air infiltration barriers should be installed in the chase as per regional codes for the rest of the home. Additionally, in regions where cold air infiltration may be an issue, the inside surfaces may be sheetrocked and taped for maximum air tightness.

To further prevent drafts, the wall shield and ceiling firestops should be caulked with high temperature caulk to seal gaps.

Gas line holes and other openings should be caulked with high temp caulk or stuffed with unfaced insulation. If the appliance is being installed on a cement slab, a layer of plywood may be placed underneath to prevent conducting cold up into the room.

C. Clearances

WARNING

Fire Risk.

Odor Risk.

•Install appliance on hard metal or wood surfaces extending full width and depth of appliance.

•Do NOT install appliance directly on carpeting, vinyl, tile or any combustible material other than wood.

WARNING

Fire Risk.

•Construct chase to all clearance specifications in manual.

•Locate and install appliance to all clearance specifications in manual

	FROM TOP
	OF HOOD
A	TO CEILING

E

F

H B

C

J

G

D

I

A

B

C

D

E

F

G

H

I

J

DVP Pipe

SL Pipe

Rough

DVP Pipe

SL Pipe

Rough

Non-

Models

Rough

Rough

Rough

Rough

Clearance

Combustible

Behind

Sides of

Front of

Opening

Opening

to Ceiling

Combustible

Flooring

Appliance

Appliance

Appliance

Opening

Opening

Opening

Opening

(Height)

(Width)

Floor

(Width)

(Width)

(Depth)

(Depth)

BE-36-C

in.

10

8-5/8

33

27-1/2

16-1/4

37

31

0

0

1/2

1/2

36

BE-36-CIPI

mm

254

219

838

699

413

940

787

0

0

13

13

915

Figure 3.2 Clearances to Combustibles

8 Hearth & Home Technologies • BE-36-C, BE-36-CIPI • 397-981 Rev. V 1/07