Most cost effective way to heat a BP cage?

[dakski]

Yes I know and I won't get one if its too expensive but I still want to know what is most energy efficient to reduce the costs I alrrady have.

What kind of tank do you have?

As mentioned, insulating your tank and/or having a well insulated tank is half the battle. The other half is a combination of a good heat source/efficient heat source and a good thermostat.

A CHE with a good thermostat is probably pretty good in terms of efficiency. The LED lights do nothing for heat, but also use very little electricity.

If you have a PVC tank, and can install one, Radiant Heat Panels (RHP) are the best option. Sounds like whatever you have you have a mesh or wire top, which means no to RHP. CHE is probably your best option.