I keep my DIY CO2 on top of my hood. When the timer for the lights comes on
the remote ballasts on the back of the tank crank up and the tubes crank up
and the heat from the hood becomes quite noticeable. If you want to do
something similar, but keep the "unsightly DIY bottle" out of sight, you
could put a $10 heating pad under the tank stand, on the same circuit as the
light timer. That way when the light comes on, the heating pad comes on and
the bottle of CO2 heats up. Probably a little more expensive (electricity
wise) then the bucket of water with a 50W aquarium heater in the bucket, but
an alternative.

Djay

"Jill Walker" wrote in message
...
I have read about using a bucket and a heater to kept your co2 warm in a
cool house. Does anyone have any other experiences or any other solutions
for this problem?