Ok- I did the math- 360 gals.,basing it on the price I just paid for 100 gals. of oil @ $1.92-got a discount from brother. And that probaly wont happen ever again.The pellets were $645 for the 3 ton,the oil was $691.20. The gas for the truck to go get it. Nothing in savings-based on 360 gals.,But- at the same time there are other considerations to keep in mind, and I feel they tip the scale in favor of pellets.1. We like keeping the money more local at home. 2. The heat from the pellets far outweighs the heat from the furnace registers,so toasty,as we are more zoned in and can also enjoy the flame. My butt gets sore after a fashion from sitting on top of the registers.Us and just about everyone who comes in, comments on the heat and how nice it feels.3. We know the price is definitely not going to stay low-once it goes up-it'll go back to killing our budget-and it'll take a snails pace in remodeling this house.4. There is a savings in the electric bill from not running the oil furnace so much-even with the stove going 24 hr a day.This year,there actually was a savings only because we use around 500 plus gallons in reality-and what we paid for the original price of the first 100 gals @ $3.00.Anyways this year cost us a total of $1300.00,compared to last years price before the pellet stove install, of $2000.00 trying to stay warm at overinflated oil prices. We are enjoying the stove alot, even with the additional maintenence,and would like another installed in the dining room,as long as we could sell our propane "Lil' Hammer" for a reasonable price. It simply means we're choosing to switch our fuel source. We now have a small generator to run the stove just in case of power failure. 5. I can run the stove anytime of year- if its just a chilly period-like a rainy day,without overheating the whole house. So I got to say that zone heating for us is preferred over registers.6. I think its a bit cleaner on the woodwork too,other than the floor around the stove where I usually make a mess.I see more dust fly up from the registers on a sunny day-even though I vac them out. So I think the pellets won out...