Fun heating project

MMCM1972

I have an old shell and tube heat exchanger laying around, and am contemplating using it as a solar heater for my pool. I get plenty of sun, the bundle is a ubend, 2 pass, 30 tubes about 40 inches long...so a decent size. I'm thinking if I paint the shell Matt black to absorb more heat from the sun it would heat up the air in the shell around the tubes to get a few free degrees into the pool...what do you guys think?

EBEBRATT-Ed

Not enough surface area to work and the pool water will eat the heat exchanger

MMCM1972

Saltwater? Copper tubes?

Larry Weingarten

Hello, The old rule of thumb is 75% of the surface area of the pool as unglazed collectors. So that needs to be a BIG heat exchanger!
Yours, Larry