In Floor Heat

Dave Sherburne NY · Oct 9, 2009

What do use for the liquid in the in floor Hydronic heat. I haven't filled mine yet and need something
that won't freeze up .

unclemerle · Oct 9, 2009

When they got mine up and running 5 years ago they used cistern water and a clear (don't know the brand) anti freeze. System works great but have had a couple issues with the electric boiler.

Merle

Clarkbug · Oct 9, 2009

I would say the answer is somewhat dependent on what you are using for your heat source. You will need something thats compatible with that portion of the system.

Adrian Billheimer · Oct 9, 2009

We're building a house here shortly, gonna have geo-thermal with radiant floor heating, HVAC tech told me the fluid is a type of glycol.

Anonymous-0 · Oct 9, 2009

"No Burst"

Jaden · Oct 9, 2009

I believe it is usually a mixture of water and propylene glycol. (RV antifreeze)

Bob · Oct 10, 2009

It's a no-brainer. Simply get "antifreeze for hydronic system use".

Just about any supplier of hydronic system parts will have a source for it.
ONE source

MarkB_MI · Oct 10, 2009

Propylene glycol is the standard. I'm not sure why they don't use ethylene glycol (automotive anti-freeze). Propylene glycol is used as a food additive (yech!), so you might check out any local companies that sell bakery supplies to see if they carry it in large quantities.

evilboweviel · Oct 10, 2009

ethylene glycol (automotive anti-freeze) is a poison. better stay with propylene not that much more money.
Ron

In Floor Heat

Dave Sherburne NY

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unclemerle

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Clarkbug

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Adrian Billheimer

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Anonymous-0

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Jaden

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Bob

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MarkB_MI

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evilboweviel

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