Are those beer cans next to the beautiful fridge??

Just thought I'd show some pics of my source of heat for the shop. (and my house of course)
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I built this a few years ago. I haven't bought any propane for 3 years now and I love it.


Do you have any pics of the inside of it? Looks like a great way to go!
Since the uglier things are, the more efficient they seem to be (think Toyota Prius), that thing must be super-efficient!
I noticed the cans on the 'fridge before those next to the 'fridge.![]()
Not to get off topic, but did anybody else notice the cats eyes?![]()

Yes it is a hot water boiler. (they call em boilers even though the water doesn't boil) No plans I just kinda sketched it out and designed as I went.
I don't use radiant heat. I have a heat exchanger that is in my regular furnaces duct work. Hot water is pumped through the exchanger and the furnace fan blows through it. (much like your car)
I fill the boiler with wood about twice a day. Once I fire it up in the fall the fire never goes out till spring so there is a trade off for the money saved. Lots of time cutting wood and loading wood but I've always had more time than money.
ps. ("wood burning furnace" was the right word.