Tracey, I moved this to here for the poster.

Charlie from wmass

Water temp for in concrete heating

Hi all,

I'm getting ready to pour a concrete floor in my shop. Currently we heat the house and shop with an outdoor wood burning boiler, (Central Boiler), through a heat exchanger forced air system. (House and shop). I would like to install a radiant in floor system when I pour the new floor in my shop. (960 sq. ft)

Question 1; What temp should the water be in a radiat in floor heating system? Somewhere I seem to remember reading it should be around 80 degrees or so?

Our boiler runs at around 185 degrees water temp and is not adjustable. When/if the water temp drops to 120 degrees or so, it is quite noticable in the way the blower fan runs inside the house and shop. (the fan runs for longer periods)

Quesion 2; How would I lower the water temp for the in floor system without effecting the house forced air system?

Sorry for the "simple" names/descriptions. I'm definately not a HVAC expert...LOL



Thanks