Termovar valve

[EricV]

I posted a while back about my Termovar valve that I think is not working properly. I took it apart, cleaned it and did the test on the stove. I t seems to open and close at the proper temps. But I am still getting water moving before it reaches 140.

So my question is can it be getting weak and wearing out without actually failing allowing water to flow prematurely?

It's 4 years old and so far it's been spot on.

 

[RobC]

If you should have to get a replacement from Bio Heat the do have new heavy graphite gaskets for the Termovar unions as replacements for the original paper ones. I think they recommend wiping petroleum jelly on them before install...
Weird about thermostat. Usually they stick one way or the other.....

 

[EricV]

Good to know about the gaskets. Yea this thing is odd, like the spring is weak and letting water passed or weak and not shutting all the way. I guess I'll just need to swap it out and see.

Cold temps tonight, It'll be cranking tonight.