Yah, I would use this to keep a regular electric heater off as much as possible.
Have water from the pond circulate through it and be added by a valve controlled by what the water temp is. Have the warm water from the solar heater mix in a empty venturi filter with indoor pond water so that the warmer water doesn't temperature shock fish.
When the sun isn't out the electric heaters kick on. Can also hook up a solar panel system/ wind mill to the heaters and pumps of the indoor ponds. But have the electricity generated by them be stored in batteries or other electrical storage device to further cut electrical bills. or just have the wind mill and solar system feed electricity to your local utlilites and get a discount or such on the power bill.
Have water from the pond circulate through it and be added by a valve controlled by what the water temp is. Have the warm water from the solar heater mix in a empty venturi filter with indoor pond water so that the warmer water doesn't temperature shock fish.
When the sun isn't out the electric heaters kick on. Can also hook up a solar panel system/ wind mill to the heaters and pumps of the indoor ponds. But have the electricity generated by them be stored in batteries or other electrical storage device to further cut electrical bills. or just have the wind mill and solar system feed electricity to your local utlilites and get a discount or such on the power bill.
