Use and Care Manual

Chimney Connector Pipe

This black pipe must be 6” (6 inches) in diameter and a 24-gauge or

heavier pipe. Do not use aluminum or galvanized steel, as they cannot

withstand the high temperatures of a wood fire. Do not use single wall pipe

as a chimney. You must connect your stove to a chimney comparable to

those illustrated in this manual. The chimney connector pipe lengths must

be attached to the stove, and to each other, with the crimped end toward

the stove. This will allow any creosote that might form to remain within the

pipe. As a safety precaution, all joints should be sealed with high

temperature silicone (AC-RTV3) and secured with three sheet metal

screws. For proper operation, the chimney connector should be kept as

short as possible. Horizontal lengths of chimney connector pipe should

never exceed 6’ (6 feet) and should have an upward slope of ¼” (one-

quarter inch) per foot.

Maintain 18” (18 inches) clearance between the wall and ceiling on any

chimney connector pipe unless wall protection is installed. If using wall

protection, the wall protection should be a U.L.-listed stove board with a 1”

(one inch) clearance (air space) between the board and the wall. This

should reduce the clearance to a combustible to 12” (12 inches).

SECTION IV: THE FUNCTION OF THE ADD-ON FURNACE

NOTE: Be sure the BTU rating of the Add-on Furnace does not exceed

the BTU rating of your Central Furnace

The Add-On Furnace is designed to be a supplemental hot air heating

system that will connect to your existing heating system. The furnace will

operate independently of your existing system, while using the same hot

air ducts that your present furnace uses. The furnace comes standard with

a 850 cfm (part number BM-1376) blower that pushes hot air up both

sides and across the top of the unit through an inner-duct chamber built

around the firebox. The heated air exits the unit through an eight-inch

outlet located on the top, near the front of the furnace. The eight-inch pipe

connected at this exit will route the heated air into your duct system.

A wood furnace does not recover as fast as a conventional furnace, so the

unit is equipped with a thermostat (part number AC-1339, see Figure 4) to

turn the blower on and off. This ensures that the blower will always be

moving hot air into your duct system. It is important that you maintain a

continuous fire for maximum performance.

The furnace has a “firebrick grate” system that is designed to last longer

than a standard cast iron grate system. Replacing one or two firebricks is