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DETERMINING THE CHIMNEY
1. Suspend a plumb bob from ceiling above unit so that weight
is hanging in the center of flue exit. (A small weight on a
string will serve as a plumb bob). Mark ceiling where
string is suspended to locate center of chimney hole.
2. After locating center of hole, install ceiling support box,
chimney, flashing, and rain cap.
CAUTION- Refer to chimney manufacturers instructions
for assembly and disassembly of chimney parts. Be sure to
follow chimney instructions for proper clearances to
combustible and proper air spacing required.
3. Add additional pipe until both of the following are met:
(a)
Chimney pipe is 3’ higher than roof at point where it
penetrates the roof. (See Figure 4).
(b)
Chimney pipe height is at least 2’ higher than any part of
roof within 10’ of the chimney. (See Figure 5).
4. Next, install a New Buck Corporation Chimney Connector
to the flue of heater. (See Figure 4).
5. Using “Type DVL” double wall chimney connector, connect
the heater to the chimney by following Dura-Vent
installation instructions exactly.
CEILING
ROOF
SIMPSON DURA-
VENT TYPE “DP”
CHIMNEY
SIMPSON
DURA-VENT
SQUARE SUP-
PORT BOX
SIMPSON DURA-
VENT TYPE “DVL”
DOUBLE WALL
CHIMNEY CONNEC-
TOR
NEW BUCK CORP.
CHIMNEY CONNEC-
TOR
UNDER SIDE OF MOBILE HOME FLOOR
Figure 13A
OUTSIDE AIR DUCT
FLOOR PROTECTOR PAD
PEDESTAL
OUTSIDE AIR DUCT THROUGH FLOOR WHEN
MOBILE HOME IS NOT UNDERPINNED.
Figure 13B
(4) 3/8" x 1-1/2"
(4) #10x1
OUTSIDE AIR DUCT THROUGH
UNDERPINNED.
10. Using an electric drill and 3/8” masonry bit, drill four (4) holes in the protective pad using holes in bottom side lips
of
pedestal stand as a guide. Be careful to drill only through the pad and not into the floor. Change to a 1/4” metal bit
and drill through floor.
11. Using four (4) 3/8” x 1
-
1/2” lag bolts, secure pedestal stand and pad to floor of mobile home.
CAUTION. If a thick
floor protector is used, you may have to use longer lag bolts.
12. Obtain outside air duct from box in pedestal kit marked FA P21B.
13. Slip the duct down through 4-1/4" hole until face of outside air duct with screen wire, contacts bottom of pedestal.
14. Secure outside air duct to the inside bottom of pedestal using four (4) #10x1 screws provided. (See Figure 3A).
15. Set heater back onto stand and resecure using screws.
16. NOTE: If home is underpinned, you must duct through underpin as shown. (See Figure 13B).
FIGURE 4
Summary of Contents for MODEL 20
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