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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.

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    • CommentAuthorRobinB
    • CommentTimeDec 26th 2012
    Just wondering as I'm going shopping for one.
    White - as the stuff required to keep the stainless steel looking shiny and without fingerprints costs more than the stuff you can use to clean a white freezer. From an electrical consumption point of view, it depends if they have the same level of insulation - if they do, then there will be no difference, though stainless steel is a marginally poorer conductor than regular carbon steel.

    Paul in Montreal.
    • CommentAuthorRobinB
    • CommentTimeDec 26th 2012
    Ah, thanks Paul, the one I'm looking at is simply silver coloured. I know white and chrome towel radiators of the same design and input are rated different so I just wondered.
    • CommentAuthorEd Davies
    • CommentTimeDec 26th 2012
    Posted By: Paul in MontrealFrom an electrical consumption point of view, it depends if they have the same level of insulation - if they do, then there will be no difference,...

    Quite a lot of “white” goods are available these days in the UK in either white or silver though presumably otherwise identical design. Often about £20 more for the silver version.

    A fridge with a lower emissivity (and therefore a higher reflectivity) at thermal infrared wavelengths will be slightly more efficient as it'll absorb a bit less heat from the surroundings. However, conduction/convection and radiation are about similar orders of magnitudes around room temperature and the proportion of thermal resistance provided by the interface between the air and the skin of the fridge should be a tiny proportion of the insulation the fridge provides so the effect will be pretty minor.

    Chrome does have a low emissivity for thermal IR. Not sure about whatever silver coating they put on fridges, etc. Whatever - not worth worrying about, I think.
    • CommentTimeDec 27th 2012
    Also depends on whether the freezer uses an exposed condenser, usually black, or whether it uses the side panels to dispose of the rejected heat. i.e. does it have warm side panels?
    • CommentAuthorRobinB
    • CommentTimeDec 27th 2012
    I haven't bought one yet. But I think I'll get the silver. It's £2 extra and might have a better resale value later on. I was planning to clad the sides with spare quinlite board (it's going in the garage) so I'd better check if they're warm first.
    • CommentTimeDec 27th 2012
    Check to see what the minimum temperature your fridge can work out and if your garage gets that cold.

    Now when it comes to running costs and colour, I suspect that normal manufacturing tolerances, along with voltage differences in the local grid would out-weigh the colour.
    I would not get a silver one as my washing machine is white, as is my hob. :wink:
    Neither: pink ones cost less to run (ie covered in XPS)
    • CommentAuthorGaryB
    • CommentTimeDec 28th 2012

    The painted silver finish will have a negligible difference in performance vs white. Only a low emissivity metal coating/ external skin such as chrome or stainless steel will make a difference.

    I recently replaced my freezer but insulated the old one first to see if it made a difference - it didn't in my case. I do recommend you get the model with the lowest energy consumption, see www.sust-it.net for comparative performance data. Some cheap models can perform very well. My fridge freezer cost just £209 but out-performed some of the recognised Eco brands costing 3 times the price.

    I found that most units now appear to have an integrated condenser coil in the side casing(s), so cannot be insulated.
    • CommentAuthorRobinB
    • CommentTimeDec 28th 2012 edited
    Posted By: SteamyTeaCheck to see what the minimum temperature your fridge can work out and if your garage gets that cold.

    thanks Steamy

    It's SN rated so should be OK. The manufacturers say it'll be OK to -15.

    Class Min Temp Max Temp
    N 16 Deg C 32 Deg C
    SN 10 Deg C 32 Deg C
    ST 18 Deg C 38 Deg C
    T 18 Deg C 43 Deg C
    • CommentAuthorrhamdu
    • CommentTimeDec 28th 2012
    Posted By: RobinBThe manufacturers say it'll be OK to -15.

    All together now.

    These people COULD SELL FRIDGES TO.... :wink:
    ''These people COULD SELL FRIDGES TO....''

    • CommentAuthorrhamdu
    • CommentTimeDec 29th 2012
    I was thinking more on the lines of the indigenous peoples of the Canadian Arctic.
    • CommentAuthornikhoward
    • CommentTimeDec 29th 2012
    Posted By: rhamduI was thinking more on the lines of the indigenous peoples of the Canadian Arctic.

    I knew it!
    • CommentAuthorrhamdu
    • CommentTimeDec 30th 2012
    Of course, Nik. I just thought some other people might not be keeping up:wink:
    • CommentAuthorjamesingram
    • CommentTimeDec 31st 2012 edited
    Robin , might not be up your street , but popular auction site seller has new electricial equipment with slight exterior cosmetic damage for considerably less than full price. Got an excellent bosch A++ fridge/freeze a couple of year ago , with a couple of small scratches on one side , was very happy.
    It's good to upgrade to more efficient or buy new equipment when it's required , I like the idea of also buying
    kit that might usually go to scap. second hand , slight damage etc.
    • CommentAuthorRobinB
    • CommentTimeJan 5th 2013
    Thanks James, does it begin with e and end with y? All in favour of buying with cosmetic damage, it saves the worry of making the first dent.
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