Interesting read. The example he used was a 1400sf drive using a 250k condensing boiler. That works out to 178btu/SF. Makes sense that he recommends using condensing boiler over conventional since the return temps are so drastically different and it does not require tempering of the supply or return water.Rob R. wrote: ↑Fri. Jan. 12, 2018 4:29 pmhttps://heatinghelp.com/systems-help-center/the-c ... t-systems/
Seems like a 'uge investment as well to excavate, reinforce, insulate and pour the drive. 1400sf driveway could easily run 30k for install.