Matt,
I'm not an expert on HVAC, but I cannot imagine that your one acre pond would be too small to handle 48,000 BTU of heat. I think the heat load would be completely insignificant. Think about it this way, what if you were trying to heat your pond like you would a swimming pool. Do you think this 4 ton system would make a difference?
Why don't you call the equipment manufacturer?
Last edited by Jersey; 04/17/09 12:54 PM.