My wife and I are interested in converting from oil to natural gas for a few reasons....however needing a new boiler is not one of them. The boiler that came with the house when we bought it a little over a year ago is a Columbia EM 85, 120,000btu/hr furnace that now is only 2 years old. We'd like to convert, but only if it is possible to convert this boiler to burn on natural gas. I know there are many variables to consider when switching fuels, (usage, cost in our area, insulation etc) but need to know if this is even a possibility. One of the main reasons we want to swtich is to get the oil tank and propane tank out of our back yard so that we can put on a deck off the back of the house. right now they're both in the way and the oil company gave us a quote of $2,000 to put a new tank in the basement...if we can put that money into the gas conversion, then we'd rather do that. Thanks for any help and for listening to my rambling!