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Old 08-04-2013, 08:22 PM   #68
Old Henry
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Join Date: Oct 2010
Location: Orem, Utah
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Default Re: Shewman's High Flow Thermostats

Quote:
Originally Posted by Bluebell View Post
The wax stats normally fail in the open position, (a good thing) and the bellows type usually fail in the closed position (bad)
I've heard that but can't figure out how the wax ones can fail in the open position when they have that spring holding them shut. What would make the wax expand against the spring when it fails?

Curious.
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