HVAC

A variation of the Rumford design reflects heat into the room rather than letting it disappear up the chimneyby Richard T. Kreh Sr.

Concrete slabs, thin slabs and metal plates offer different ways of routing radiant heat underneath every floor in the homeby John Siegenthaler

by Richard T. Kreh Sr.

It can be done successfully if your floor isn't too hot, and the wood is put down dry on a dry slab and subfloorby Don Bollinger

Hot combustion, heat-exchange channels and six tons of brick for energy efficiency and a clean burnby Vladimir Popovac