Re: Payback time for energy saving techniques

On 13 Oct, 12:39, "William Black" <william.bl...@xxxxxxxxxxxxx> wrote:
"Gaz" <gaz...@xxxxxxx> wrote in message

news:5nboidFhg6kuU1@xxxxxxxxxxxxxxxxxxxxx



MikeinCam...@xxxxxxx wrote:
Per Royal Institute of Chartered Surveyors.

Solar heating 208 years
Double glazing 124 years
Condensing boiler 38 years
Loft insulation 13 years
Hot water cylinder and pipework insulation 38 years

Mail today

You have to be careful with such calculations, as technology moves
quickly, and while it might cost to *add* energy saving devices, but if
you design new builds from the beginning with the technology it doest take
anywhere near such amounts of time.

Even more interesting.

If global warming is real, and indications are that it is, then a highly
insulated house will need cooling using air conditioning in the summers of
the not too distant future.

Though if it's on a flood plain, nature will do the cooling.

.

Relevant Pages

  • Re: OT : Arctic Ice returns
    ... insulation away for free. ... I doubt it would cost any more than all the other ... The Victorian sliding sash windows in my place are very difficult (and insanely ... The AGW religionists hate good evidence that totally blows their case apart. ...
    (sci.electronics.design)
  • Re: Insulating block wall garage
    ... My other choices of course include framing and insulation the ... My last garage/workshop had heat and A/C ... I understand the reasoning why the Icynene is so much better because it fills in cracks and stops air infiltration, but in my last stick built garage I believe I insulated it better than 99.9% of contractors, paying very much attention and detail for the fiberglass to expand properly and sealing off air infiltration and air convection currents on both sides of the insulation. ... That was 24x32 sq', up in PA, and heat cost me $100 to $175 per winter. ...
    (alt.home.repair)
  • Re: What went wrong with weatherization
    ... the opportunity to look round a few domestic house construction site.. ... what I saw was abysmal in terms of energy efficiency. ... Houses here in the UK have insulation around four times as ... $50,000 at an annual of cost of around $6000, in order to ...
    (alt.home.repair)
  • Re: Question about R value for attic insulation.
    ... We have two companies that have bid to blow insulation in our attic (as ... R-30 (12 inches) for $200 ... According to the Energy Star chart, we need R-30 at the minimum. ... Would R-38 or R-49 be worth the extra cost? ...
    (alt.home.repair)
  • Re: is there such a thing as too much insulation?
    ... However, since there are diminishing returns, at some point, adding insulation beyond a certain point is not cost effective. ... down on heat gain in the summer and heat loss in the winter? ... If the only insulation is in the attic, then all you are doing is losing heat/cool through the walls and basement. ...
    (alt.home.repair)