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Posted by Steamhead on December 24, 2009 at 11:14:01:
In Reply to: Re: New oil boiler - Dunkirk vs. Buderus vs. Burnham posted by arnold on December 23, 2009 at 19:43:40:
That Dunkirk is a vertical-flue type with pins in the flue passages that absorb the heat. This type is rather difficult to clean out properly, so often efficiency is lost over time.
The Burnham MPO and Buderus are three-pass boilers in which all or most of the flue passages are accessible from the front. These are a bit more efficient to begin with and much easier to maintain as well.
Dunkirk has a similar 3-pass model, the Excelsior. If I was going to install a Dunkirk, this is what I'd use..........
http://www.dunkirk.com/product_detail.asp?key=162