Look for the BEST contractor. Too many don't know what they are doing these days. There's another internet forum populated by wetheads and they have a find a contractor section leading to some great guys. Might do a search for it and see if you can find a good contractor that way.

Thanks Baymee: Looked at that fuel comparison, seems like oil replacement is the best option. At my age (61) I also have to look at payback time. Here in B.C. Canada, we have gotten a price for a new 86% effecient oil-boiler at $3600 installed. And we already have a 250 gallon tank. Wheras, the propane boiler is $7500 plus, including installation. As for daddo, yea, could look at cheaper fuel, but we do buy the more expensive bio-fuel. 20%canola-80%oil. Eases my conscience a bit-lol. Just in case you guys were wondering what it costs to heat a 1700 sq.ft. home here, it goes like this= 4 cords firewood-$660-60 gallons propane-$275, and this years total oil bill was-$720. or approximately $1700 per year. I suppose in todays world, that isn`t all that bad. The reason for the different heat sources is this old house is a four level split. *And when the power goes out cause of a wind storm, we like to have that back-up. Thanks again for the feedback. George

Do you see a valve before the filter?

You can also look at Viessmann & Buderus products. SR