Nothing can stop the latter. One of the reasons for bringing in air pressure testing on the last revision of Part L is that ventilation losses are now much more significant; they joy (speaking as an ex-BCO) is that pressure testing exposes defects in what cannot be seen, not just what is visible.
Yes, I think that's a great idea although an air tight inner shell can still have its insulation compromised by sloppy work. I've seen guys insulating with celotex circumventing the insulation by not fitting it tightly or leaving gaps when using up offcuts. I don't think the guys were doing it deliberately, they just didn't understand how important it was to fit things in tightly or seal up gaps with foam. As it's not something that can be tested easily afterwards a sloppy team could do just about anything they wanted and get away with it.
Thanks Owain, but that wasn't what I was looking for.
I'm after the difference in cost (consumption) between a 60s poorly insulated property and a 2000s (relatively) well insulated property.
I know how much the 60s property costs/uses as I lived in it for 9 years.
With SRs, I used 10-11,000 of night units and 2,000 day units per year (for everything), though that was to heat at a level that some would say was inadequate.
Now I need to understand how much it costs in the modern property with panel heaters, to assess, amongst other things, why they don't install SRs from new?
Why not just say what you mean instead of using an obscure acronym? Then, to refer someone to a list of obscure acronyms is just plain rude. It would have taken less effort to type what you should have said in the first place.
Why can't you use simple English in the first place? Rather than post something that people can easily understand, you seem determined to make it difficult for anyone reading your posts.
Once again, you have typed far more letters in your (even more obtuse) reply than are in the original phrase. This was your third opportunity to say what you meant in simple English, yet all you do is refer to the same list of obscure acronyms.
Gas would be nice we are about 2 miles from the nearest mains gas, doesn't stop British Gas trying to sell us gas though. I'd probably buy, but only probably, if they provide it (at their cost...).
You get about 10kW/l from oil so take your pence per litre and divide by 10 to give a rough "unit" price. Last lot of oil I bought (25 Jan) was 40.78p/l so about 4p/unit. I'm paying 9.281p/unit for electric.
With that level of use a no standing charge tariff makes no difference to the bill. The Tier 2 cost and unit cost of the same tariff with a standing charge are normally the same but the Tier 1 units cost more. Strangely the cost difference between Tier 1 and Tier 2 multiplied by the number of Tier 1 units is the same as the standing charge...
Absolutely NO chance of mains gas here. There's a sort of semi-mains setup in (IIRC) Thurso, where there's a large tank, piped to a number of homes, so from the point of view of the user, it _feels_ like mains gas, but the settlements here are far too strung out for that to work.
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.