sewer water heat exchanger

oil pan 4 · 03-05-16, 09:51 AM

Yeah if I build this thing it's going to be fairly large. I have 60 feet of sewer pipe. To be worth anything I know it will have to be at least 20 feet long.
Only 2 things limit the size :
The physical length of 60 feet.
The availability of 50 cent a pound scrap stainless.

I expect efficiency to only be between 20% and 60%.

Even if all it does is 10% efficiency and prevent the pipes from freezing abs bursting then it will have been worth it.

I don't think that copper would be strong enough. All industrial heat exchanges are made of stainless.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

03-05-16, 09:51 AM	#11
oil pan 4 Land owner Join Date: Nov 2012 Location: NM Posts: 1,026 Thanks: 12 Thanked 127 Times in 107 Posts	Yeah if I build this thing it's going to be fairly large. I have 60 feet of sewer pipe. To be worth anything I know it will have to be at least 20 feet long. Only 2 things limit the size : The physical length of 60 feet. The availability of 50 cent a pound scrap stainless. I expect efficiency to only be between 20% and 60%. Even if all it does is 10% efficiency and prevent the pipes from freezing abs bursting then it will have been worth it. I don't think that copper would be strong enough. All industrial heat exchanges are made of stainless.