Hearth and Home Technologies CERONA-42 owner 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 re- quired to be, installed inside a chase.

Construction of the chase may vary with the type of build- ing. These instructions are not substitutes for the require- ments of local building codes. Local building codes MUST be checked.

Chases should be constructed in the manner of all out- side walls of the home to prevent cold air drafting prob- lems. 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 pre- vent 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.

A

E

B

F

C

G

DJH

I

CLEARANCES TO COMBUSTIBLES:

		A	B	C	D	E	F	G	H	I	J
		Rough	Rough	Rough	Rough	Clearance to	Combustible	Combustible	Behind	Sides of	Front of
		Opening	Opening	Opening	Opening	Ceiling from Top
		(Vent Pipe)	(Height)	(Depth)	(Width)	of Arch Opening	Floor	Flooring	Appliance	Appliance	Appliance
Cerona-36	in	10	50-1/2	22-1/4	42-1/8	49	0	8	1/2	1/2	36
	mm	254	1283	565	1070	1245	0	203	13	13	914
Cerona-42	in	10	54-1/2	22-1/4	49-1/8	45-1/4	0	8	1/2	1/2	36
	mm	254	1384	565	1248	1149	0	203	13	13	914

Figure 3.2 Clearances to Combustibles

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. H • 11/08 9