anti-freeze

[jsmith6752]

Are there any ill effects running anti-freeze in pex tubing used for radiant heat?
Would it be alright to do in a water heater or a boiler? thanks

 

[DZL JIM]

Why not just get the proper glycol solution and do it correctly?
I don't mean to come across harsh, just curious really.

 

[phbsales]

Antifreeze=Glycol

Use a 35% solution in the whole system. Will protect from freezing down to -14*F.

 

[jsmith6752]

I actually meant glycol.........thanks

 

[chevelle67]

Make sure your system is clean and the glycol is inhibited and the ratio is correct otherwise it's a great breeding ground for bacteria which can produce ammonia and start corroding all your none ferrous metals

 

[Fastback]

RV antifreeze is a propylene glycol and is cheaper & less toxic should you have a failure or leak.

 

[fabrk8r]

Make sure you use a radiant barrier tubing such as hePEX, which is made for radiant heating applications.

PEX for potable water systems will allow oxygen to penetrate into the glycol and degrade your boiler and ferrous metal piping.