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Question About Lennox International Inc. Furnace F8AUH
2 stage TS...

Existing Lennox twin 137,000 Btu furnaces heat our house adequately using one furnace per season, and alternating years. Good energy conservation practice. They will be replaced with twin G40UH 48B-090 at 71,000 output each. Do you recommend a 2-stage TS if our house needs more than 71,000 Btus, i.e., both furnaces?

Asked by Frank on 01/11/2010 1  Answer

ManualsOnline posted an answer 14 years, 9 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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