Tue, 19 Dec 2023 07:38:01 +0000 http://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193505#Comment_193505 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193505#Comment_193505 Wed, 15 Jan 2014 17:57:06 +0000 ferdinand2000 Posted By: JustinNo, it probably isn't worth it for cooking only. Especially now since the £105 PA hike in prices.

Even running a boiler some of the time and being frugal in a fairly efficient house is a poor deal compared to what the polluters" get. For me my gas effectively cost 60% more per unit than the price paid by "Mr Average" (Mr average lives in medium sized house and used 20300 KWH a yearhttp://bit.ly/KSdfzn" rel="nofollow" >http://bit.ly/KSdfzn).

If I had a heat pump, I'd probably dump the gas for cooking, yes.

I wonder what a "medium" house looks like.

Ours is just under 200sqm. Medium or large?

Our 2 month Mid Oct > Mid Dec bill or all electricity and gas was £180. Pricey? That was before we swapped to a fixed tariff, which will save around 12%.

F]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193507#Comment_193507 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193507#Comment_193507 Wed, 15 Jan 2014 18:21:21 +0000 SteamyTea Posted By: ferdinand2000The huge fly in that ointment is that Stamp Duty is paid by the buyerI like the idea of linking stamp duty and an EPC. It puts a price on the inefficient building to a certain extent. The buyer can then decide if they should make an offer to take this into account.
The biggest problem I see is that there would be no obligation to actually do any work. It would also hit smaller houses hardest, opening up the debate about keeping poor people poor. Though that is relative.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193510#Comment_193510 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193510#Comment_193510 Wed, 15 Jan 2014 19:21:02 +0000 Ed Davies Posted By: ferdinand2000I wonder if an appropriate way to link costs for green insulation etc to the pocket of the householder would be to tier Stamp Duty according to EPC figure. The huge fly in that ointment is that Stamp Duty is paid by the buyer. That EPCs don't work for seriously efficient houses is also quite a big fly.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193514#Comment_193514 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193514#Comment_193514 Wed, 15 Jan 2014 20:00:54 +0000 DarylP ]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193521#Comment_193521 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193521#Comment_193521 Wed, 15 Jan 2014 20:22:53 +0000 Ed Davies
http://www.hockertonhousingproject.org.uk/2012/11/new-energy-efficiency-strategy-and-the-risk-to-innovation/

(OK, that's about SAP but EPCs are sort-of watered down SAP, aren't they?)

http://passivebuild.co.uk/diary/index.php?entry=4

Taxing on that basis would be adding injury to insult.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193523#Comment_193523 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193523#Comment_193523 Wed, 15 Jan 2014 20:37:28 +0000 DarylP RdSAP is a stripped down version, it uses so many defaults, it is a very broad brush, if you get my drift?]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193526#Comment_193526 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193526#Comment_193526 Wed, 15 Jan 2014 20:41:10 +0000 DarylP
Cheers]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193532#Comment_193532 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193532#Comment_193532 Wed, 15 Jan 2014 21:11:29 +0000 SteamyTea ]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193536#Comment_193536 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193536#Comment_193536 Wed, 15 Jan 2014 21:46:18 +0000 Ed Davies http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193539#Comment_193539 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193539#Comment_193539 Wed, 15 Jan 2014 22:01:43 +0000 SteamyTea Posted By: Ed DaviesI think there's little doubt that the thermal mass plays a large partI did a lot of reading up on this 6 years ago, there was very little UK research and even less data (most was from the US and more about keeping cool). I was always hoping that thermal mass would help, but could find no evidence in the literature. There were way too many variables that were effecting the outcomes and I did not read one report that had anything but temperatures in it. So no account for varying (or not) solar gain. I was really disappointed.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193548#Comment_193548 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193548#Comment_193548 Wed, 15 Jan 2014 22:57:29 +0000 Ed Davies http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193554#Comment_193554 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193554#Comment_193554 Thu, 16 Jan 2014 07:09:59 +0000 SteamyTea Probably more the occupancy/volume ratio and what other electrical equipment is in there.

This is some temps from my unheated (mainly) back bedroom. I shall try and get the relevant ambient temperatures later. Red line is the mean over the period]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193577#Comment_193577 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193577#Comment_193577 Thu, 16 Jan 2014 10:11:23 +0000 Ed Davies Posted By: SteamyTea(usually about 3 to 4°C above ambient).3 to 4 °C above ambient isn't fun after a week of freezing temperatures. The Hockerton houses do a _lot_ better than that.

(BTW, I'm not that much of a fan of HHP: I don't think 17 °C is a success (I'd want at least 19 °C as a minimum and a bit warmer for most of the time - pretty much a requirement if I want to concentrate sitting still) and I'm not convinced that their solar collection is that good but they do at least indicate that 0 kWh/(m²·a) is within reach.)]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193586#Comment_193586 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193586#Comment_193586 Thu, 16 Jan 2014 10:44:37 +0000 SteamyTea Nice 'spring morning' now and my kitchen, with the window open has risen to 23°C, this is after grilling some bacon, toast and scrambled eggs (got a bet on with my lodger that I will put on as much weight as she looses, trying to loose this one).
So I still think that is is the other inputs that are heating the place and not the bricks, they, at best, stabilise the temperature only.
Happy to be proved wrong as I was once a fan of thermal mass, now a fan of a fan heater (and Miley Cyrus of course, as she knows a bit about demolishing high mass buildings).]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193638#Comment_193638 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193638#Comment_193638 Thu, 16 Jan 2014 16:32:27 +0000 Ed Davies
Maybe that's true in your part of the UK but that is a bit special, isn't it? Here's a histogram of central England daily average temperatures for January:

http://cet365.wordpress.com/2014/01/09/plot-number-9/

“The mean temperature during the later years is 3.9 degrees, compared to 2.85 degrees for the earlier period.”

Seems the daily average is below 5 °C more often than not for January. Nights will be colder still on average, I expect.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193653#Comment_193653 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=11294&Focus=193653#Comment_193653 Thu, 16 Jan 2014 20:22:35 +0000 SteamyTea http://www.greenbuildingforum.co.uk/forum114/comments.php?DiscussionID=11624]]>