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THROUGH THE WALL OFFSET

You can also go through a wall at an angle

starting directly at the fireplace as

depicted in Figure 15. An angled wall

insulated radiation shield (RM-12WRSI30

or RM-12RWSI45) must be used wherever

the chimney passes through an exterior

wall.

Please refer to Table 6 for dimensions

pertaining to the installation of the angled

wall insulated radiation shield (RM-

12WRSI30 or RM-12RWSI45). Make sure

to have enough cei Ii ng height for your

installation. If the ceiling height is too low

for the planned installation you may want

to consider installing the fireplace in an

outside chase.

Refer to the angled wall insulated radiation

shield installation sheets for detailed

installation instructions.

CHASE ENCLOSURE

If the chimney runs up the outside of the

house, we recommend that it be enclosed

in a chase structure. The chase should be

constructed in such a way that it is an

extension of the home (see Figure 15 and

Figure 16). It should be well insulated

between the footings and the floor of the

home to prevent heat loss. If the climate

Flashing

with Storm

Collar and

Roof Top

Radiation Shield

with Storm Collar

in the Attic

Radiation Shield

Chase liner of

fire rated gypsum

board is

recommended

(may be required

by local authorities)

2' min.

in your area is mild, insulate the chase at

least to the first firestop. If the climate in

Figure 16 Chimney Installed with a

your area is very cold, insulate the chase

Chase Enclosure Example

to the top to keep the chimney warmer,

increase the draft, and reduce creosote buildup. We also recommend insulating the

ceiling of the chase just as if it were in the attic space. This will prevent cold air from

dropping down through the chase and into the room where the fireplace is installed (see

Figure 15 and Figure 16).
Some local codes require that the walls be insulated, vapor sealed and sheathed with a

fire rated gypsum board (see Figure 15 and Figure 16). We strongly recommend this

procedure for all installations to prevent cold drafts from originating in the fireplace

enclosure. If you follow this procedure, we recommend that you do not insulate the wall

above the front of the fireplace.

REMEMBER:CHECK LOCAL CODES CONCERNING INSTALLATION REQUIREMENTS AND

RESTRICTIONS IN YOUR AREA.

FRAMING

The enclosure walls can be framed with any suitable materials (2"x4" or 2"x6" studs,

plywood, gypsum board, etc.). Because of the high heat output potential of the

RUMFORD 1500, combustible materials must NOT go closer to the fireplace than the top,

back and sides' standoffs, refer to Figure 3.

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If the chimney runs up the outside of the house, we
recommend that it be enclosed in a chase structure.
The chase should be constructed in such a way that
it is an extension of the home (see Diagram 15). It
should be well insulated between the footings and the
floor of the home to prevent heat loss. If the climate in
your area is mild, insulate the chase at least to the first
firestop. If the climate in your area is very cold, insulate
the chase enclosure to the top to keep the chimney
warmer, increase the draft, and reduce creosote buildup.
We also recommend insulating the ceiling of the chase
just as if it were in the attic space. This will prevent cold
air from dropping down through the chase and into the
room where the fireplace is installed.

The chase ventilation must be located on the inside
of the home to prevent cold air and moisture entering
the fireplace cavity and home.

Some local codes require that the walls be insulated,
vapor sealed and sheathed with a fire rated gypsum
board. We strongly recommend this procedure for all
installations to prevent cold drafts from originating in
the fireplace enclosure. If you follow this procedure, we
recommend that you do not insulate the wall above the
front of the fireplace.

CHECK LOCAL CODES FOR INSTALLATION REQUIREMENTS AND
RESTRICTIONS IN YOUR AREA.

Chase ventilation grill

Anchor plate

Chase ventilation grill

Diagram 15

Chase Enclosure

CF780 Wood Fireplace

installation