Heat Exchanger Plan Samples
The following graphics and text are contained in the plan
Build your Own Liquid To Liquid
Heat Exchanger
This project was developed to integrate an outdoor
wood burning furnace with a closed-loop hydronic home heating system. It could also be
used in other liquid heat transfer applications including solar or domestic hot water
heating. Commercial versions of these devices are very expensive, but this exchanger was
built for less than $200. This plan will yield a unit 9 feet in length. As a rule of
thumb, use 1 exchanger for every 50,000 BTU's required.
Parts List
1) 1 pc. 4 in. dia. x 9 ft. long tubing for the outer
casing
2) 2 pcs. 1/4 in. x 6in.x 6in. steel plate for the endcaps
3) 2 pcs. 1-1/4 in. pipe couplers
4) 1 pc. 3/8 in. pipe coupler
5) 1 pc. 3/8 in. pipe plug
6) 8 pcs. 1/2 in. X 10 ft. type "L" copper tubing
7) 18 pcs. 1/2 in. copper 90 deg. St. elbow
8) 8 pcs. 1/2 in.x 1/2 in.x 1/2 in. copper tee
9) 4 pcs. 3/4 in. x 1/2 in. x3/4 in. coppertee
10) 2 pcs. 1/2 In. x 1/2 In. x 3/4 in. copper tee
11) 16 pcs. 1/2 in. copper male threaded adapter
12) 2 pcs. 3/4 in. copper female threaded adapter
13) Misc. 1/2 in. and 3/4 in. copper tubing
End Of Samples"
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