New Buck Corporation 21 - Manual (Page 6)

• A factory-built prefabricated chimney may be used for your unit when installed in
compliance with the manufacturer's specification and uniform building code.
CAUTION
YOUR CHIMNEY MUST BE CORRECTLY SIZED. A CHIMNEY THAT IS TOO SMALL
OR LARGE IN DIAMETER, OR TOO SHORT, CAN CAUSE YOUR STOVE TO SPILL
SMOKE WHEN THE DOOR IS OPENED.
SECTION I
INTRODUCTION
Your New Buck Corp. Model 21 Cast Iron Insert/Townsend III is a non-catalytic unit designed
to meet the most stringent emissions standards without the use of a catalytic combustor. This
effect is achieved through the use of secondary air which is mixed with primary air in the unit’s
firebox. For peak performance, we suggest the use of hard seasoned wood.
The primary air, which is controlled by the user, burns the wood. Secondary air is admitted into
the firebox through the secondary air tubes at the top of the firebox. This secondary air burns
the impurities in the smoke released from the initial wood burning. The temperature necessary
for this combustion is maintained through the firebrick refractory. If any more technical
information is necessary, contact your local dealer.
This unit may also be used with an optional room air blower. To order the optional motor
assemblies you must specify the stove model number and give the following part number:
*Model 21 Cast Iron Insert /Townsend III Motor Assembly — MA T3714
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