Guinness
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| posted on 9/7/09 at 02:18 PM |
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Way O/T Air-Conditioning at Home
I'm in the middle of a loft conversion at home.
I have three options for heating:-
1. Replace my existing gas fired boiler with a new combi and extend the c/h up into the attic. This will mean a fair bit of work and loads of
pipework / rads.
2. Fit a couple of electric rads and some underfloor heat mat in the bathroom.
3. Fit a heat / cool air conditioner. I have a subbie who is willing to supply / install at cost as a thanks for all the work I've put his way
over the past few years.
What do the collective think about re-sale value in the future? Is a/c likely to put a buyer off, or a positive selling point?
I think a plumbed c/h would be preferable to a few electric rads to any potential buyer.
I realise the running costs will probably be higher, but if the summers keep getting hotter, it's possible the new attic room will be
un-bearable in the height of summer!
(I'm not looking at selling any time soon)
Cheers
Mike
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blakep82
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| posted on 9/7/09 at 02:19 PM |
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i think a/c in a loft would be a good idea. heat rises, and during the summer i think the heat would be too much.
________________________
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don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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tegwin
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| posted on 9/7/09 at 02:31 PM |
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Dont fit an aiconditining unit..... fit a reversible air source heatpump... it sounds a lot more environmentally friendly than an "air
conditioner"
Heats the house in winter, and cools it in summer... Simples!
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Would the last person who leaves the country please switch off the lights and close the door!
www.verticalhorizonsmedia.tv
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MkIndy7
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| posted on 9/7/09 at 02:53 PM |
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quote:
Originally posted by tegwin
Dont fit an aiconditining unit..... fit a reversible air source heatpump... it sounds a lot more environmentally friendly than an "air
conditioner"
Heats the house in winter, and cools it in summer... Simples!
Don't fit either if it needs to provide heat when its below about 5 deg outside not unless your going to provide another heat source aswell.
They work by basically reversing the inside and outside units, but it can only take heat from the outside air and put it inside if its above say 5
deg... as below that there's not heat left to take out!
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will121
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| posted on 9/7/09 at 03:24 PM |
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dont want to swear, but is it a building regs conversion? if so may also be some impacts with consequential improvements with energy conservation ect,
like idea of a quiet comfort cooling unit as if a fully occupiable bedroom in loft gets hot
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tegwin
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| posted on 9/7/09 at 04:11 PM |
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quote:
Originally posted by MkIndy7
quote:
Originally posted by tegwin
Dont fit an aiconditining unit..... fit a reversible air source heatpump... it sounds a lot more environmentally friendly than an "air
conditioner"
Heats the house in winter, and cools it in summer... Simples!
Don't fit either if it needs to provide heat when its below about 5 deg outside not unless your going to provide another heat source aswell.
They work by basically reversing the inside and outside units, but it can only take heat from the outside air and put it inside if its above say 5
deg... as below that there's not heat left to take out!
Its true that efficiency goes down with air temperature....
I have a 12Kw heatpump that works at full capacity until about 8 degrees C... At 0 Degrees C it only produces about 5Kw of heat....
But as its by the coast... the air temperature rarely drops stupidly low so it works reasonably well...
It is coupled to an inline electric heater for those times when it is really cold!
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Would the last person who leaves the country please switch off the lights and close the door!
www.verticalhorizonsmedia.tv
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fesycresy
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| posted on 9/7/09 at 04:30 PM |
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I'll u2u you my mobile number, give me a bell if you want to have a chat about air con.
There's a lot of crap on the net and forums 
By the way Daikin Super Inverters heat down to -20 deg, albeit reduced output, but there's still heat to be extracted from the air.
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The sooner you fall behind, the more time you'll have to catch up.
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MkIndy7
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| posted on 9/7/09 at 04:50 PM |
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I just enjoy watching all our office staff freezing when its cold outside because they moved into a new office block without having a look or a say
over the spec of the building... and suprise suprise they've got A/C heat pumps 
Funnyest thing is I work for a Heating and Ventialtion company
Then again last week they were prob laughing their socks off while all the engineers were sweating and nearly passing out in their crappy Vans 
[Edited on 9/7/09 by MkIndy7]
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fesycresy
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| posted on 9/7/09 at 04:58 PM |
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I'll tell you why your office has a problem, almost guranteed.
Probably a VRV or VRF (variable refrigerant volume / flow) system installed and the designer has allowed a large diversity factor, likely to be in the
region of 140%.
Diversity means sh1t when the ambient drops below freezing.
Basically the system is undersized for the application. I see it regularly on large 'consultant designed' jobs.
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The sooner you fall behind, the more time you'll have to catch up.
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Hellfire
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| posted on 9/7/09 at 05:18 PM |
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I have a certified loft conversion and regularly the heat in that loft has hit 35 degrees - in winter it sometimes drops to 14. I have various heat
settings which fluctuate throughout the day but overnight the temperature in the loft is 5 degress below the thermostat minimum of 19.
I would get an A/C unit - in fact I have been very close this summer to purchasing one - Curry's have a portable at £120 at the moment 12,000
BTU's - Cat B energy (so quite good!) say's 15ft sq room is controlled. I thought it was a bargain!
Steve
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Stuart_B
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| posted on 9/7/09 at 06:11 PM |
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i just got a climate control unit from b&q which is a spilt uint, it does 9000btu, and as my bedroom is in the loft it is normaly hot up there and
b&q had one for £125 on sale, so i brough one, and an extendsion hose, and wall bracket for teh outside, it only came to £170odd quid, and it is
brillant, it is A engry rated for colling, and B rated for heating.
stuart
black mk indy, 1.6pinto on cbr600 bike carb's.
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