Gas furnace size


Old 10-04-04, 07:45 PM
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Gas furnace size


I am in the process of having a local (San Jose, CA) HVAC contractor install a gas, forced-air, two-speed, 80% efficiency Trane furnace. The house is a single story, 1800 sq ft ranch. The HVAC contractor says I need a 100,000BTU furnace. The self-help tools on the web informs me to install a 70,000BTU furnace. What to do?

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Old 10-05-04, 11:12 AM
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Dont know the winters there or how the home is insulated.
so cant say for sure but it sounds big to me. like we say here get 3 bid on the job and make sure they run a heat loss and AC load on the home .

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