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
Upper "Thermal Stratification" Chamber offers heat-exchange and even heating of the stove's surface.
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
"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
Please reach out to discuss your project.