On 5 March 2013 09:26, Gordon Scott <gordon@???> 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.
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