CHIMNEY INFORMATION
The chimney is one of the most important yet most
neglected and misunderstood portions of any Sol-
id Fuel Burning Installation. THE FURNACE SHALL
NOT BE CONNECTED TO THE CHIMNEY WITH
OTHER HEATING DEVICES.
There are two types of Class “A” chimneys:
1. Masonry with tile liner suitable for venting resi-
dential or building heating appliances. (See NFPA
211.)
2. Class “A” Chimney, listed or certified by a na-
tionally recognized testing agency as suitable for
venting residential or building heating applianc-
es. If your masonry chimney has not been used
for some time, have it inspected by a qualified
person (building inspector, fire department per-
sonnel, etc.). If a listed or certified manufactured
chimney is to be used, make certain it is installed
in accordance with the manufacturer’s instruc-
tions and all local and state codes. See Figure 5,
Manufactured Chimney Installation and Figure 6
of Masonry Chimney (note roof clearance) in ac-
cordance with NFPA 211.
COMMON CHIMNEY PROBLEMS
In order to have a proper operating Solid Fuel Heat
System, the chimney must be capable of providing
the draft required.
In the Vapor-Fire Model 100 Furnace, the required
draft is .03 to .06” water column (W.C.). This can be
measured using a draft gauge.
If the chimney cannot supply this constant draft, the
unit will not operate properly.
In all furnace installations using Vapor-Fire Model
100 furnaces, a barometric draft regulator must be
used and properly adjusted for proper draft. Provid-
ed – Set to .03 to .06 W.C. by sliding wt. to #3 to #6
vertical.
Figure 5
Figure 6
BOX 422 • TOWER, MN 55790 • USA • Tel (218) 753-2330 • www.lamppakuuma.com
7
CAUTION
THE CHIMNEY MUST BE A CLASS
“A” CHIMNEY IN GOOD OPERATING
CONDITION. DO NOT CONNECT THIS UNIT
TO A CHIMNEY FLUE SERVICING ANOTHER
APPLIANCE.
18”
2’
LESS THAN 18”
MORE THAN 18”
RIDGE
2” MINIMUM
2” MINIMUM
2” MINIMUM
CLASS A
CHIMNEY
3’ MINIMUM
CLASS AF
CHIMNEY
3’ MINIMUM
MINIMUM HEIGHT
REQUIRED ABOVE
ROOF SURFACE
WITHIN 16”
HORIZONTALLY
RIDGE
