FAQ

Region 1 Region 2 Region 3 Region 4 Region 5 Furnace Size
1130-1415 1220-1525 1365-1705 1660-2070 1855-2320 TM9V060B12MP12
1415-1875 1525-2025 1705-2265 2070-2750 2320-3080 TM9V080B12MP12
1875-2340 2025-2525 2265-2825 2750-3430 3080-3840 TM9V100C16MP12
2340-2805 2525-3025 2825-3380 3430-4105 3840-4600 TM9V120D20MP12
Residential Sizing: The table and charts are intended to be used as a guideline for Residential applications only.
The information is based on conventional window space (<15%), insulation and building construction (8 ft.
ceiling height). When including a finished basement, use 1/2 of the finished basement square footage with
the rest of the area being calculated.
Mobile/Manufactured Home Sizing: Refer to the Date Plate located in the electrical box or kitchen cabinets. For
further assistance, call Hamilton's customer service department [phone].
SQ. FOOTAGE
WINCHESTER® Equipment Sizing Guide
96% AFUE Gas Furnace 2-Stage, Variable Speed (Multi-Positional) Selection
Use the map above to determine your region and compare to the chart below to find your application size.