21 replies to this topic

[snakebite729]

I have 2 large tanks and 5 small tanks in my patio and each has a heater. Altogether, I have about 1500w of heaters out there. The electricity bill isn't too high though, generally cheaper in winter as my aircon is on all day in summer as I work from home. Usually about $600 per bill all year round. I don't have any insulation on the tanks (probably should tbh, would save me some cash), but I keep all of the lids on during winter to keep as much heat in as possible and take them all off during summer to allow some evaporation and let plenty of heat escape. Will look into this heatblock stuff for sure, good thread. 

[Labcat]

A couple of years ago I invested in some clear acrylic sheets, 3mm from memory.

I cut them to the size of the exposed sides of the tank in the patio and placed Velcro strip around the edges. This holds the acrylic very close to the glass but not against it. Glass of course is a good conductor of heat, but acrylic is not and nor is the air between them. It's like double glazing your tank. You can leave it there for the winter and still watch your fish, turn up your lights if you think it makes the tank a little bit dimmer.

It's not perfect but it will take the worst sting off you power bills.