Wood Master 3300 Installation, Operating And Maintenance Manual - The Furnace
7
Woodmaster Owner’s Manual
August 2012
CAUTION!!!
Using a non-insulated chimney or failure to use a Class A Insulated
Chimney WILL result in a voided warranty
Installation
THE FURNACE
Choosing Location
The WoodMaster is designed for outdoor use. We do not recommend installing in a building. When installing your WoodMaster,
keep in mind the direction of the winds during heating months. Try to place the furnace in an area where exhaust will not be a
problem for yourself or any surrounding neighbors.
Chimney Specifications
To insure proper insulation, use only a Class A Insulated Chimney and Chimney Adapter from your local WoodMaster Dealer or
Northwest Mfg., Inc.
Block or Pad Supports
Under normal conditions four cement blocks are all that is required to support the furnace. Blocks should be at least 6 inches
wide, 10 inches long, and 3 inches thick. Under very soft conditions a concrete pad may be needed. For Model 4400 the pad
should be no less than 5 feet wide, 6 feet long, and 4 to 6 inches thick. For Model 5500 no less than 6 feet wide, 7 feet long, and
4 to 6 inches thick. Always use a non-combustible base.
For model specific Slab Dimensions, see page 21 in this manual.
Trench
The trench must be 24 inches deep and 6 to 12 inches wide. It can be dug with a shovel or a backhoe. Place all the dirt to one side of
the trench to allow room for working on the other side.
Wiring
Place electrical supply in bottom of trench and cover with 6 inches of dirt. Electrical wire rated for underground use (14-2 +ground
or 12-2 + ground for the 6500) can be buried in the same trench as the water lines but must maintain a minimum 24 inch depth. Al-
ways follow state and local codes.
Water Lines
The remaining 18 inches of open trench is where the water lines are placed. Use a one inch water line with a minimum rating of 100
PSI at 180 degrees and insure that your water line insulation has a minimum R-value of eight in order to maintain adequate heating
efficiency.
NOTE:
If lines travel under a driveway or where heavy equipment travels, the line should be buried two to three feet deep. If lines
travel through a low or wet area, they should be insulated and installed in a water tight piping, (PVC).
NOTE:
Leave a minimum of three feet of water line exposed above ground at the furnace to insure adequate length for connection.
NOTE:
Before insulating and burying the water lines, label the hot water supply line at both ends. Once the lines are covered you
will be able to easily determine which line is connected to the pump.
NOTE:
Use only approved water line insulation sold through your WoodMaster Dealer. Poor insulation will cause your WoodMaster
furnace to burn large amounts of wood.
CAUTION!!!
Call Before you dig.