Furnaces: Revolution II

Reviewed by:
Rosemary Thornton
With home-heating costs going through the roof, more folks are replacing inefficient furnaces with high efficiency systems. The Revolution II is Burnham's most efficient gas-fired boiler.

After an inital pass through the cast iron boiler, flue gases pass through a secondary surface. Here diamond-shaped transfer pins draw that last measure of heat from exhaust gases.

This cast-iron heat exchanger comes with a limited lifetime warranty.

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