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Thermostat housing cover on Vit, is it best to use a sparingly amount of sealent? and what's best?


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I swap between summer and winter thermostats. I've tried the Klingersil gaskets from Moss and wasn't impressed, had a couple of events with "gasket creep", so back to using a standard gasket with a thin smear of Hylomar on both faces. No problems. 


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do make sure the recess is fully cleaned and the stat is fully located before you tighten the Hsg.  its easy to find you have trapped the rim and bent the Hsg 

to aid refilling and air locks always use a stat with a jiggle pin in the rim if its not got one drill a 3mm hole in the rim to leat air bypass on refilling 




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