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The WK400’s Innovative heat exchanger passage design

Another innovation from Benjamin.

As we mentioned before in our discussion regarding the combustion chamber, smoke will spiral by its very nature. Benjamin has extended the combustion chamber’s unique oval shape into the heat exchanger as well. This design will reduce the amount of creosote and soot build up within the heat exchanger, increasing it’s ability to work effectively, thus boosting efficiency.

The heat exchanger also features a gradual incline from the front to the rear of the unit. This allows for the natural rise of smoke.

There are two clean outs on the front of the unit, and one on the front of the combustion tunnel, accessible after removing the front jacket cover (4 screws). To guard against the rusting and seizing of the heat exchanger cover removal nuts, Benjamin has opted to use dissimilar metals made of brass and steel.

A unique unit requires unique tools, and Benjamin has you covered. Each unit comes equipped with it’s own custom designed and built steel clean-out rake!

Ready to start saving on your heating bill?
Contact Maine Wood Furnaces today!