Extended Fan Timer Thermostat?

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Moderators: Mark, Greg

Posts: 79
Joined: Sun Mar 11, 2012 3:56 pm

When my central heat turns off it doesn't have a cool down cycle. This causes my ducts to just go crazy with expansion/contraction. I did an experiment where I would turn the fan on after the heater kicked off and this wasn't a problem at all. Can I buy a thermostat with a fan timer that will keep it on for a certain period (60 or 90 seconds) after the heat/cool kicks off? Thanks!
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Posts: 5696
Joined: Wed Feb 28, 2007 8:01 pm
Location: Weedsport, NY

Most units have high & low fan switches in them, it could be that the low switch is bad and shutting off the fan too soon.

"If I can't fix it, I can screw it up so bad no one else can either."