Open Source Heat Exchanger

Requirements

• Stackable is pancakes of 2'x3' - and 4" high based on pipe
• Unpressurized system with pumping
• Seams between layers are sealed with rock wool insulation - works well
• Completely modular - can be stacked as high as needed. One in and out fitting per stack.
• For pressure applications - different design must be used

Working Doc

edit

Calculations

• 1" pipe is 3' per square foot of heat exchange area
• 10k btu/hr per square foot of heat exchange
• 10k btu per hr = 3 kW
• One stick of 3' pipe is 10k btu/hr
• 8 pipes is 80k btu - a decent start for scalability

Links

• Open Source Hydronic Stove
• Heat Exchanger Calculations