Finnish Contraflow (three channel)
Overview
Developed in Finland and Introduced to North America by Finnish architect and heater devotee Hekki Hytannian and Master Heater Mason Albie Barden in a 1970s workshop in Lincolnville, Maine, the Finnish Contraflow is most common heater in North America today.
Top view of Contraflow Heater, showing
firebox, heat-exchange channels, and chimney connection.
Features and options
Specifications:
Firebox Size: 15.5" x 18"
Heat Exchanger: Upper Chamber feeding dual 6' down-drafting gravity based heat exchangers.
Wall Thickness: 4.5", 6.5"
Main Body Footprint: Approx 32"x44"
Exit: Base
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Upper "Thermal Stratification" Chamber offers heat-exchange and even heating of the stove's surface.
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Contraflow heaters offer an incredible flexibility of option for the inclusion of benches.
Five Channel (top exit)
Overview
Growing 6" or so in width gives us the ability to create a top exiting heater with a very similar aesthetic to the countraflow.
Features and options
Specifications:
With or without a bake oven, the five run heater offers a lot of thermal mass, a large firebox, and twice the channel-length of a base model Contraflow heater.
Firebox Size: 18x18
Heat Exchanger: Symetrical down-and-up 19 foot channels
Wall Thickness: 4.5, 6.5"
Main Body Footprint: Approx 32"x56"
Exit: Top
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"It burns cleaner than any oil burner I've ever tested, without all the complexity."
~Him (A home energy professional).
B and B, Topsham, Maine
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Please reach out to discuss your project.