On Thu, 07 Jan 2010 12:14:18 +0000, Terry Fields
wrote:


The Natural Philosopher wrote:

pete wrote:

Agree about the insulation, though it turns out that the DG is a loss maker.
The cost of heat-loss through SG windows[1] doesn't even pay the interest
on the cost of having it installed. DG cost: £5200, interest @ 5% = £260 p.a.


MOST savings on DG come from replacing leaky, rotten and draughty
windows with ones that seal properly.

Not from the actual DG itself!

Oh, I'd agree with that. The reason the original SG units were
replaced is because the house-builder forgot to seal the bottom
frames, and they all rotted.

Installing the DG evened out the temperature gradient across the
lounge, which coupled with the reduction in draughts really raised the
comfort level.

So do you reckon after tomorrow when my old draughty wooden tilt 'n
turn windows are replaced by DG units ,coupled with my having put foam
insulation behind the wooden panelling below the windows and when I
connect up the two new K2 rads ( presently using one old double panel
single finned rad supplemented by a Calor Gas heater ) that I'll see a
difference in my Victorian high ceiling living room?

I think I'll need to leave the fitters a kettle and tea and coffee and
biscuits ..don't envy them fitting windows in this weather .I'll go
and sit in the bathroom where it'll be warmer .