Recent content by 35fordjh

I ran it for just over 12 hours and shut it down when we got hit with the sub zero temps last week. It got up to about 50* floor temp but started loosing heat after the sun went down and temps started to dive.

I used ethylene, 50%. Knowing now what the slab temp is, I could thin it out and be more efficient and still not worry about freezing. I did figure the pump curve since it has 3 speeds. Speed 3 fits the 3.024 gpm and 14-15 ft of head that I came up with.

Hello everyone, this is my first post although I have lurked for awhile. I recently poured a slab in part of my pole building and I included 3 loops of 1/2" pex, 265-285 ft per loop. My slab is 24x36 so the loops were spaced 12". Hydronic systems are fairly rare here so I had very little...