Get your loft insulated and get your boiler serviced every year
Even in winter, I seldom have the heating on more than 2 hours a day. My previous house had no loft insulation and it took a lot more time and money to heat the house.

This may seem obvious, but I've lost count of the number of so-called-green friends who don't have proper loft insulation and end up using far more gas than I do.
(IHateSprouts is baking a huge pie shaped like an enormous pie, Fri 11 Nov 2011, 8:31, 6 replies)

The only time I've had a loft that's been empty enough to put insulation down in,
has been when I'm moving out.
( monster munch person, man, woman... camera... TV?, Fri 11 Nov 2011, 8:36, closed)

Annual boiler servicing is generally a waste of money.
If it's working and flue-gas analysis shows efficiency is within manufacturers tolerances then leave well alone. Especially if it gets as little use as yours.
Yeah, insulation is where it's at.
( blaireau69 , the Cumbrian Travis Bickle., Fri 11 Nov 2011, 8:39, closed)

Also, if it's not obvious
Draft proofing.

I got a little infra red temperature gauge from Maplins for £15. Point it around the place, you can see where cold air is getting in.

Our crappy front door was letting a gale blow underneath. One sausage shaped draft excluder later, the hall is noticeably warmer.
(username failed moderation, Fri 11 Nov 2011, 8:54, closed)

Did you lay your own 'sausage-shaped draught excluder'?
And have you saved the £15 the infra-red monitor cost yet?
( Snappyuk gets BIGGER with free sample., Fri 11 Nov 2011, 9:41, closed)

I didn't buy it for that reason
I just used it for that.

So, meh.
(username failed moderation, Fri 11 Nov 2011, 11:58, closed)

Our former Prime Minister
Had the magnificent idea of insulating every house ever in the whole country.

But what happens when you cross free stuff with the fucktarded descendants of convicts?
Wide-spread rorting + several deaths later = scheme abandoned.
(Gritty, yet fluffy. kipperpillock is obsessed with me =), Sat 12 Nov 2011, 1:00, closed)