Eric Johnson said:
More like 15 cords a year, Steve.
I don't consider burning a renewable resource that benefits the forest when you remove it to be wasteful.
Not the same as driving a Suburban when you could accomplish the same thing with a Saturn, at any rate.
Wood and oil aren't even in the same category. Thought you'd understand that one, Steve.
Sure, wood and oil aren't in the same category, but they are both energy, and building materials, and a few other things.
That's 3 or 4 yrs worth of heat to me, but you've made some decisions. The value of the wood is less than the investment you have in the furnace and the convenience of loading a boiler twice a day in a basement (as opposed to 4 or 5 times in the living room). Hell, you might be able to deduct it as a business expense. But if you could heat with 4 or 5 cord in a different unit you're wasting energy. Cutting/hauling/splitting probably burn gas. And from a CO2 emissions standpoint, we'd be better off if that cut wood rotted in a hole.
We actually make a serious effort to 'right size' the vehicle to the task - several days a week carpooling in a VW Golf TDI. When we have to drive separately I usually drive my MGB (25-30mpg) and wife drives the TDI. We only use the Explorer to tow, haul more than 2 adults and a car seat, or drag a bunch of stuff around for vacations or something. So we don't drive a suburban [ever, or even an explorer] when a vw will do.
But we mostly do that because of the bottom line. If gas were free, we probably wouldn't do that.
If the wood were free, maybe I'd think of it differently, but I don;t have enough land to even come up with more than a cord or so a yr in perpeturity, meaning there's a dollar value with every cord I burn. Whether it's gas to scrounge (in the 1993 F150 [about 16mpg all the time]), time and gas to cut/split, or $100/cord to have it dumpd in my yard.
So we're wasting different forms of energy, but we're both wasting energy. Energy content of the 'extra' 10 cords - 128 million BTU; the 'extra' 150 gallons - 17.25 million BTU.
That was a somewhat labored way of saying it's not that I'm not thinking about it, but it might also be possible that a used explorer is a better choice in my case, and a wood furnace a better choiuce in your case.
Steve