Houston, we have a problem: Fuel consumption is through the roof, even tho this is a new home (less than two years old) and is 5 Star energy rated. The home is piped for gas, which we *could* hook up to (umpteen thousands, prices going up, a natural disaster means no heat after three days) The builder hired a heating and air contractor for the house. I now have a Delta Triangle system. It sucks. Here's how it works: Basically a 40 or 50 gallon well insulated hot water heater. Two "zones" on the unit-one supplies domestic hot water, one supplies heating. The heating line goes down into a sort of heat exchanger thing, where the hot water is circulated and a fan behind it blows it through the forced air ductwork. I also have the fancy schmancy air exchange system built into the house. This Delta Triangle has a one gal. per hour nozzle (no kidding) and in theory it should be relatively efficient to heat this home. It ain't. Last winter we tried hard to be conservative with the heating, yet still had plenty of months where we went through well over 200, 250 gallons of fuel a month. Talk about expensive! I have spoken to energy auditors, had a contractor come in and check the system (operating normally, btw) we stay on top of the air filters, etc etc. So to that end we added in Toyo stove. While you need electricity to operate them, it has surely improved the comfort of our main area by a lot! However, it can't help the rest of the house becuase it's a "split ranch" that is, rooms on either side of the main area. Those rooms can get pretty chilly as you can imagine, if we turn the heating system way down. Somehow we can't seem to get around the fuel consumption issue. I have been toying with the idea of going multi fuel (coal or wood, and oil, since these are abundant here) but cannot for the life of me figure out what is even a reasonably dependable make or model. I don't know anyone who owns one, and I don't know anyone who has added one to an existing home. I will be calling around next week to see what it make take (and what we could save) to switch over to a boiler with a boiler mate, and get rid of that huge oil gobbling hot water heater. If anyone can provide any info on multi-fuel I would love to hear about it! Thanks!