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Thanks guys, those are valuable contributions that I overlooked and will seriously consider.

I should also explain that my operating temperature should not exceed 125 degrees since the tubing will be in a slab in the basement and on "warmboard" on the main floor of the house - which allows...

Bilva, thanks for the reply.

The amps to run an efficient electric boiler at 75000 BTU is 90 amps or less, obtained from specs of a number of electric boilers at this output.
If the boiler is...

Kevin, Thanks, but I considered this, but I am in the mountains with propane as an alternative - electric costs are about equivalent plus I do not have to be concerned with venting. A modulated...

Installing radiant heat system with need for 75K BTU 240V ELECTRIC boiler
Would like recommendation on boiler. Presently considering Seisco and Electro Industries boilers since they are modulated....

Thanks for the helpful comments Teddy Bear.

The residence will be built at 6500ft in Wyoming with very cold winter temperatures. It will be radiant heated. It is 40x36 timber frame/SIP paneled structure creating a very tight environment. There...

I would appreciate a recommendation for an Air to Air Exhanger with about 150CFM capacity

Thank you all for the good advice. It will be carefully considered. Unfortunately, I am not aware of any qualified local radiant heat contractor who has the software and expertise to design a radiant...

I thought it would be best to continue this topic under a new thread, see Warmboard Continued.

Thank you all for taking time to comment on my earlier thread on this topic which I am continuing under this new thread for convenience of you all.

I should mention, this will be new timber...

I should mention, this will be new timber frame/SIP structure located in Wyoming at 6,500 elevation and 50 miles to the nearest nail; I will be using wood as a floor finish; and I will be my own...

I will be installing a radiant system in a new construction having a 1400 Sq ft floor area with a cathedral ceiling covering 21,000 cu ft of volume above the floor. I am considering Warmboard vis a...