Maybe a BIT expensive!

[Asianleful]

I need to find a way of heating my 13,000 gallon pond. What is going to be the BEST way of keeping it warm at about 70+ degrees in central Florida weather? Most affordable way at that.

 

[kendragon]

Most affordable way at that.

No such thing. Forget it.

 

[dhardwick]

Check into gas swimming pool heaters

 

[Asianleful]

I'm talking about the cheapest way of doing it, not a specified under amount.

 

[kendragon]

I'm talking about the cheapest way of doing it, not a specified under amount.

Oh, okay. 13,000g is a lot of water.
I would like to know as well

 

[Conner]

You could start by building a greenhouse over top of it. Then a combination of heating the water and heating the greenhouse will probably allow you to keep the water temp elevated. 70+? Not too sure about that, and probably not cheaply either.

 

[Conner]

I'd say geothermal heat, but there goes any possibility of "cheap".

 

[Go Big or Go home]

lol 500 1000watt heaters ?

 

[Chris-Chicago]

Ask neighbors in the area what it costs them to heat their backyard pools. 13,000 gallons is a small back yard pool, so a pool heater would probably work, but the flow rate through those is quite high. Pump alone will probably need 20/30amp circuit (220v)

 

[hankn]

There is no need to heat the entire pond. The fish will tend to migrate and hover in the area where the heater is working. So you can end up with only a certain small area being warm and the rest of the pond will be cold. I have seen cases where fish hover need underwater lighting due to the small amount of heat generated by them in cold ponds at night. Don't try to heat the whole pond.