On 5 March 2013 09:26, Gordon Scott <gor...@gscott.co.uk> wrote: > On 04/03/2013 23:27, Dr A. J. Trickett wrote: >> >> >> Our house was built in 1936 and has a EPC rating of "E" and an estimated >> energy use of 314 kWh/m2/year. Last year we ran the house at an actual >> energy use of 85 kWh/m2/year. What the inspector said and what is real are >> quite different. I'm just curious if anyone else has calculated or would be >> willing to calculate and share their domestic energy footprint? >> > > I remember a landlord friend complaining that he'd done all the cavity wall > and loft insulation, etc., that the authorities demanded, then when the > inspectors came they marked the "cavity wall insulation" entry as "presumed > not". They didn't even ask. > > >> I'm curious to see what the energy footprints are for houses of given ages >> and how they compare to the EPC if you have it. This is totally unscientific >> but I'm curious what is out there. > > > I don't have an EPC. > > Detached 1911 bungalow, significantly extended in 70s and readjusted in 80s > to make the extensions more sensible. Quite a mix of structure including > original brick cavity walls, modern lightweight walls and timber in the > first floor. Cavity insulation, and as much loft insulation as we could fit > (which isn't that much), underfloor insulation. 151m^2, 213kW/m^2. That > includes cooking and hot water all year and our hot water is on a pumped > secondary ring main, so loses more heat than most. > > We have the room heat fairly low evenings and weekends, and just 10C at all > other times. >
I have had a EPC done when I sold my house. The method they do it is very simple. Count number of door and windows. Makes an extimate as to how much insulation is there, and picks a letter. It is an extremely rough estimate, and not worth the paper it is written on in my view. -- Please post to: Hampshire@mailman.lug.org.uk Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire LUG URL: http://www.hantslug.org.uk --------------------------------------------------------------
