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Posted by HeatPro on June 03, 2008 at 21:05:52:
In Reply to: Clueless in NJ needs to understand the difference between oil burners.. posted by Chancelund on June 03, 2008 at 19:52:58:
The first thing you want to look at is the boiler heat output. A house insulated to 1990 and later standards would require a 150,000 btuh boiler if it is 6000 square feet in floor area, which makes it a commercial building, or something to have many guests in all the time. Some people like to live that way and have the money to heat a house 4 times larger than most at $3.50 a gallon.
If the house is not that size and still needs a boiler that large to heat the house because it is poorly insulated, it is time to insulate the house, then select a smaller boiler so the boiler doesn't waste fuel purchased from overseas that might cause you to move to an area in a better-insulated house has that has natural gas at half the price of oil fuel.
The MPO boiler is a new design for Burnham that has an extended heat exchange surface that could get as much energy from the fire as possible without the boiler condensing. There are a few other boilers, like the Peerless that can get 4% more energy from the fire; but might not be worth the extra 4% fuel savings for the purchase price.