In floor heat, something doesn't seem right?

[ForceFed70]

So, back to the OP's problem... I think his heater is too small. 32,000 BTU for a 1000sqft shop with 11' ceilings is a little too small IMHO. Should be using something closer to 45,000 BTU.

 

[chadman]

I am running it just as pictured. That is exactly how the instructions said to have it during operation. If that's correct or not I don't know. The instructions leave at bit to be desired. They give you no information on any recommended adjustments.

I was wrong. I had that valve open. I must have taken that picture before I started operating the system.