White Rodgers G1N 4R9 - Manual (Page 28)

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10. SELECTION CRITERIA (COMBINED WOOD/ELECTRIC FURNACE)
RESIDENTIAL AREA
House including: basement, first floor and second floor (half)
Floor area *
New house Existing house
1100 square feet or less PSG 2000 – 15 PSG 2000 – 18 or 20
1100 to 1450 square feet PSG 3000 – 18 PSG 3000 – 20 or 25
1400 to 2000 square feet PSG 4000 – 20 PSG 4000 – 25 or 30
2000 to 3000 square feet PSG 4500 – 25 PSG 4500 – 30
COMMERCIAL AREA
Building including: Walls 14 to 16 feet high
Garage doors, no basement
Floor area
2500 to 3800 square feet
PSG 4500 Wood
4000 to 10000 square feet PSG 5000 – 40 or 60
* Consider main floor only.