I heat it with wood. A big huge wood fire right inside Herby, my nickname for this wood burning SS outside stove....a Hardy.
The hardy heats water which is fed underground to the house and the shop to a coil in a air handler, then it's forced air.
An added plus is that it also heats the house water prior to going thru the water heater, which cuts back on energy to heat water.
The downside....I have to go get the wood and split it.
Dan
