watervole: (Default)
Judith Proctor ([personal profile] watervole) wrote2010-01-07 10:06 am

Heating and Insulation

This is what ten inches of loft insulation does (photo taken this morning):



The neighbours, as you will observe, have somewhat less.

We've got insulation in the loft floor, and also between the rafters in the roof.  We've got floor boards over the floor insulation, so we also have full use of the loft as storage space - and the ceiling insulation means that although the loft is cold, you don't freeze when you go up there in winter.

Interestingly, my mother-in-law (the incomparable Molly) has a similar roof effect, although she has no insulation at all.

She lives in a very old, half-timbered house.  It can't have things like cavity wall insulation. She turned down an offer of loft insulation from the council as she didn't feel it would benefit her, and there is no double-glazing.  She's 80, lives on her own (with her dog) on her pension, and you're probably now imagining a wretched old lady shivering in the cold.

Not Molly.  We phoned her last night just to be sure she was okay, though we knew it was almost certainly unnecessary.  She replied cheerfully that she was fine.  It was so cold last night that she actually turned the convection heater on in her bedroom for the first time in ages.  She's spending the day in the lounge and only bothering to heat the one room (coal fire), thus saving costs on heating the rest of the house.

She laughingly pointed out that she still has snow on her roof whereas her neighbours with insulation had none left on theirs.  She says they waste heat, heating every room and having the thermostat set far too high.

Molly just adds a thick wool jumper, wears warm socks, and only heats the room she actually needs.  (and with a coal fire, that room is very comfortable).  She'll keep warm by walking the dog, eat well by digging up a few veg from the garden, and hopefully be fit and well for many years yet to come.  (though we're all grateful to the friend who drove her to the shops to stock up on essentials just before the snow hit - Molly has a lot of friends, she's lived a long time in her village and has helped many local causes over the years).

Therefore the Proctor family tips on saving heating bills (and CO2 emissions) appear to be: insulate as well as you possibly can, only heat the rooms you really need to, and wear warm clothing.
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[identity profile] sigisgrim.livejournal.com 2010-01-07 02:15 pm (UTC)(link)
Some googling and memory searching has come up with WarmCel. http://www.warmcel.co.uk/
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[identity profile] sigisgrim.livejournal.com 2010-01-07 02:19 pm (UTC)(link)
I'd recommend double-lined curtains: blackout lining and thermal lining. The blackout lining isn't bad on the thermal efficiency in its own right, but adding thermal lining on top just makes them so much better. Being heavier they also hang better, which also seems to help.
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[identity profile] watervole.livejournal.com 2010-01-07 03:15 pm (UTC)(link)
Our heating costs are probably less than £500 a year, so the payback period would be a lot longer.
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[identity profile] watervole.livejournal.com 2010-01-07 03:20 pm (UTC)(link)
No specialist knowledge needed. You can buy self-adhesive stuff in a reel, or get longer-lasting plastic ones that tack in with small nails.

They're all cheap and any of the B+Q staff should be able to tell you how to fasten them (though it's usually clear on the packaging).

There's a few different varieties for going under the door (they're a bit more robust to cope with all the movement - often look like a thin brush).
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[identity profile] watervole.livejournal.com 2010-01-07 03:25 pm (UTC)(link)
Sounds like a very good product (though they do make one rather silly claim on their web site - basing any CO2 saving claim on a 100year period is assuming a longer life than many buildings have)
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[identity profile] watervole.livejournal.com 2010-01-07 03:28 pm (UTC)(link)
Good point. I'm aiming to do that in the near future. I've just found a new shop locally that will do both blackout and thermal linings for curtains, so I'm going to retrofit some of my existing curtains.
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[identity profile] watervole.livejournal.com 2010-01-07 03:29 pm (UTC)(link)
Not to worry, I've got other volunteers for that one.

[identity profile] steverogerson.livejournal.com 2010-01-07 03:55 pm (UTC)(link)
I have been looking at the door and think the gap is actually between the inner and outer frame of the door. Some sort of sealant is probably needed - any suggestions?

[identity profile] vjezkova.livejournal.com 2010-01-07 04:58 pm (UTC)(link)
This effect is well known to me...we are going to use an insulation on our roof as soon as we have enough money for its repair.
And we would definitely die without our central heating, we are not so economical here, and I admire Molly a lot!!!
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[identity profile] watervole.livejournal.com 2010-01-07 05:11 pm (UTC)(link)
A lot would depend on the surfaces involved. I'd ask the B+Q staff what would stick best. (I imagine it will be one of those sealants that comes in a handy plunger tube)

Which reminds me, we need to replace a small section of sealant next to the bath...

[identity profile] headgardener.livejournal.com 2010-01-07 07:48 pm (UTC)(link)
Hmm: green concierge chap told us our house was designed to have a 'cold roof' so we shouldn't insulate between the rafters. Also told us that it probably wasn't really cost-effective to top up our previous 100mm of loft floor insulation. However, having read elsewhere that increasing loft insulation is almost always worth doing, we did top it up to 400mm with solid insulation boards that can be walked and stacked on. Nontheless, we don't have that spectacular extra snowy roof -- nor do our neighbours have melted roofs to contrast with.

[identity profile] pinkdormouse.livejournal.com 2010-01-07 08:40 pm (UTC)(link)
All the houses round here still have snow on the roofs, but I still want Dad to finish the extra loft insulation sooner rather than later. I suspect a new front door will be moving up my priorities list considering the draughts in the hall.

[identity profile] temeres.livejournal.com 2010-01-07 08:51 pm (UTC)(link)
I agree with you that people don't really have any excuse

How about living on the ground floor of a multiple occupancy residence where each flat has its own landlord and the actual owner of the building seems to have disappeared down an interdimensional wormhole?

[identity profile] rockwell-666.livejournal.com 2010-01-07 09:05 pm (UTC)(link)
Check for deals available through your local council.

When I bought my house a few years ago as there was no insulation at all, I got cavity wall and full (10 inch) loft insulation done for £100!!

[identity profile] rockwell-666.livejournal.com 2010-01-07 09:10 pm (UTC)(link)
Probably the best (although I'm not an expert) is the sort of expanding foam filler that is used when putting in double glazing etc.

Check with a local DIY store for advice, though.

[identity profile] rockwell-666.livejournal.com 2010-01-07 09:11 pm (UTC)(link)
Err, what?! If that's the case, I should worry about my house (built in the 1900's being about to fall down! :-)
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[identity profile] hawkeye7.livejournal.com 2010-01-07 09:13 pm (UTC)(link)
Everyone I know here who has a heat pump has a new house. I'd been under the impression that they were hard to retrofit. (And who has a house that pipes water around in radiators?) I'll have to have another look. Unlike the rainwater tank and the the solar panels, you can't get a government rebate for installing them here, which is a pity. I think this is why we lag a long way behind you in Australia. A forty-degree temperature variation in 24 hours occurs here, but only in summer.

The building codes here say little about such matters. They seem obsessed with protecting dwellings from insects. We still lose more houses every year to hungry insects than fires though. I did know a couple who decided to forego insulation entirely. Everything went okay until they went on vacation in winter. Then their pipes froze and flooded the house.

[identity profile] espresso-addict.livejournal.com 2010-01-07 09:25 pm (UTC)(link)
We have a partially half-timbered house -- in the old part of the house, not only is there nowhere to put insulation (no cavity, no roofspace) but there are also many unpluggable holes in the walls. I keep a duvet in the sitting room so that I can snuggle up even when the fire isn't alight, and find that 1 kW portable radiators work very well in warming the locality without wasting too much heat on warming the whole room.
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[identity profile] watervole.livejournal.com 2010-01-08 08:58 am (UTC)(link)
See some of the other comments on this thread regarding the cheapness and ease of draught excluder around doors.
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[identity profile] watervole.livejournal.com 2010-01-08 09:00 am (UTC)(link)
I was thinking of people who own their own roof-space. People living in flats can have complex problems on that score, be it freehold or leasehold.
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[identity profile] watervole.livejournal.com 2010-01-08 09:01 am (UTC)(link)
It will have the capacity to last that long, but often buildings get demolished for reasons that have nothing to do with their structural quality.
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[identity profile] watervole.livejournal.com 2010-01-08 09:03 am (UTC)(link)
Water in radiators is the norm in the UK.

What do Australians normally use?
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[identity profile] watervole.livejournal.com 2010-01-08 09:04 am (UTC)(link)
Sounds like you have Molly's approach to life. Very practical.

[identity profile] j-lj.livejournal.com 2010-01-08 09:10 am (UTC)(link)
That's a good idea, blackout lining and thermal lining. Where you find curtain lining these days in Cambridge?

In Cardiff I would just go to the drapers store in the central market. No idea where to go here for it.
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[identity profile] watervole.livejournal.com 2010-01-08 09:58 am (UTC)(link)
Don't you have any fabric shops or shops that sell curtains?

Try Google.

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