Heating fish water

[Greg Gore]

I live in Oregon, and temperatures are in the 20's-40's F

I am looking for a way to heat up my 250 gallon fish tank, aquaponics bed and greenhouse. I was planning on using a wood pellet stove to do all three. I was going to make a heat transfer from copper tubing wrapped around the stove pipe to heat up my planting bed and water for the tilapia, but I read that using copper is not good for the fish. Does someone have an idea on what metals would be okay for fish and be a good source of heat transfer from the stove pipe.

Or

Has someone come up with an alternate way of heating water, greenhouse, planting bed?

Thanks Greg

[Zach]

what heater did you get for a greenhouse that is not pricey? looking for one myself.

 

Zach

[Ian Cameron]

I used copper pipe around the woodstove and transitioned it to black plastic water line, coiled in ft and raised bed. Works well, using a 12v hot water RV pump.

[Greg Gore]

Zach said:

what heater did you get for a greenhouse that is not pricey? looking for one myself.

 

Zach,

I found some heaters at petsmart and other places for about $40 for a 250-300 gallon tank.

[Greg Gore]

Ian Cameron said:

I used copper pipe around the woodstove and transitioned it to black plastic water line, coiled in ft and raised bed. Works well, using a 12v hot water RV pump.

Ian, I would not use copper as it's poisonous for some fish, I used stainless steel tubing for refrigeration.

[Michael & Kristine Stoddard]

How to get 2000ºF Solar Power

This might be a little overkill...