DB junkie;2280728; said:If you use plently of insulation you don't need anything more than some Stealths. My pond is roughly the same size as yours..... I use 4 Stealths in a sump and am able to run up to almost 90 degrees......... The key is the insulation. I used the 1.5 inch thick pink stuff.... Bottom, all sides, then cover it at night with 2 sheets.
BigJ;2282292; said:Did you just pack it around the sides? Or is there more to it?