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21091-0-0606
INSTALLATION OF HOUSEWARMER PRODUCT
WARNING: Read the installation instructions thoroughly before cutting or drilling any holes for
installation.
WARNING: Do not remove any rating plates attached to the unit.
CLEARANCES TO COMBUSTIBLES
Allow clearances (for all models) to adjacent combustible construction.
IMPORTANT:
A qualified service person must install this appliance. Installation must conform to local codes, or in the absence of
local codes, with the latest edition of the National Fuel Gas Code, ANSI Z223.1.
2”
20”
2”
5”
-11.75”
WALL
THICKNESS
+
MODELS
ACCESSORY
HW180DV
HW130DV HW075DV
8"
7.25"
6"
THREADED ROD
5/8"
5/8"
5/8"
AIR INLET PIPE
4"
3.5"
3.25"
GAS OUTLET PIPE
When the wall thickness is less than
11.75", cut the sub-assembly as
specified in the chart. (The measure-
ment is the original wall thickness
plus the added length in the chart)
INSTALLATION AND ANY REPAIRS TO THIS APPLIANCE MUST BE DONE BY A QUALIFIED SERVICE PERSON.
A qualified service person should be called to inspect this appliance annually.
Have all of your appliances checked annually.
Summary of Contents for HW075DVN-1
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