On Wed, 28 Jan 2009 07:23:11 -0800 (PST), Dave W wrote:

Do you have the bulbs on when the gas isn't? If not, I can't see why
you want to remove 80W of heat when you're spending so much on the
1000W (say) heat from the gas.

Good question - in practice, and other than chilly summer evenings, the gas
is never lit, as the room is heated by the CH rads. It's all about the
perception of a "warm" room. ;-)