Wondering who else has buried a rocket mass heater chimney made of sched. 40 steel in a large house concrete floor and thermosiphoned hot water from the firebox loop into a storage tank to pump down into pex zones buried in the concrete floor away from the chimney? This works well in our two houses.
I guess I've been abducted by space aliens. So unprofessional. They tried to probe me with this tiny ad:
