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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.

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    • CommentAuthorTriassic
    • CommentTimeFeb 4th 2015
     
    My Whirlpool fridge packed up within 12 months and had to have a control board replaced. Two years later the same part failed again.

    I have a Morphy Richards steam iron, the first one failed after three months use and was replaced. The replacement lasted 8 months.

    I took the old iron to the local recycling centre and they had a skip full of broken small appliances, many of which looked like New. I'm left wondering if appliances are built to last or failure is part of the design.
    • CommentAuthorDarylP
    • CommentTimeFeb 4th 2015
     
    We have an LG washing machine that I think is 14 years old, and still going strong...

    I have had to swap out the drum bearings, but once you learn where design flaws are, you can replace the 'dodgy' bits!:cool:
  1.  
    How Long Should Appliances Last??
    A life time

    How Long do Appliances Last??
    1 week longer than the guarantee!!
    •  
      CommentAuthorSteamyTea
    • CommentTimeFeb 4th 2015 edited
     
    How timely this post is.
    My 9.5 year old cheapest fridge, a Fridgidaire, decided to cool permanently. I could have tried and fixed it, but decided to buy a new one as it was getting a bit noisy. It was using about 3 kWh a day in the end and was drawing 2kW at start up sometimes.

    Got the cheapest again, a Curry's Essential one, cost a tenner more that 10 years ago (£110). Is whisper quiet at the moment, claims to only use 0.3 kWh/d (got a monitor on it so shall see).

    With some things, like fridges and freezers, a simple thermostat is all that is needed. They really don't need microprocessor control.
    •  
      CommentAuthorjoe90
    • CommentTimeFeb 4th 2015
     
    I heard from my plumber mate that the average life span for a new condensing boiler is only 7 years|||| my brother has a cast iron back boiler in a gas fire that is over 25 years old and still going strong. It may not be as effecient as a modern boiler but...........
    • CommentAuthorDarylP
    • CommentTimeFeb 4th 2015
     
    ... your plumber is either fitting 'UK' condensing boilers, or doing it wrong! I fitted WBs back when I got my hands dirty... none have ever come back, from over 18 years ago IIRC?

    Certain turkish/other EU brands may be lacking, but there is nothing wrong with condensing boilers as a technology. :wink:
    •  
      CommentAuthorSteamyTea
    • CommentTimeFeb 4th 2015 edited
     
    Weren't there some problems with the aluminium heat exchangers in condensing boilers?

    Had to change my laptop after 7 years, think the CPU went, going to get a spare and see how it goes.
    My old router lasted over 10 years. Wind up radio is still going after 12 years, and that got bashed about on site a fair bit.
    Cooker is 28 years old, one ring has packed up.
    Storage heaters and DHW cylinder are still fine after 28 years too.

    But my cheap Maplins weather station has stopped reporting windspeed (a known problem) after a few weeks (and one good gale).
    • CommentAuthorSeret
    • CommentTimeFeb 4th 2015
     
    You actually shouldn't be surprised to find a pile of dud appliances at the tip that look near-new. Meet the bathtub curve:

    http://www.weibull.com/hotwire/issue21/ht21_1.gif

    Generally speaking, a high rate of failures in new components is normal and expected for everything from toasters to jet engines. That's why consumer goods come with warranties. The wastage comes from the fact that a lot of them can't practically or economically be repaired, rather than the fact that some fail early.

    As for whether they're "built to fail", well yes in a way they are. Everything in the world is designed with an expected life. For consumer goods that are subject to the whims of things like fashion then a design lifespan of something like 5-10 years is reasonable. You could design for longer lives, and some manufacturers do, but you're pushing your product up into a premium price bracket by doing so. The bulk of devices having a shorter lifespan is just a response to the actual behaviour of consumers, who want a cheap device that doesn't last forever.
    •  
      CommentAuthorSteamyTea
    • CommentTimeFeb 4th 2015 edited
     
    Ah, the Poisson Distribution.
    There are two of them, time to failure and time between failures.

    I did a bit about why it is not worth repairing cheap consumer goods. Basically came down to the amount of stock that has to be carried and distributed (cost the same as a new item) and the labour content (higher than the objects price).
  2.  
    Posted By: SteamyTeaBut my cheap Maplins weather station has stopped reporting windspeed (a known problem) after a few weeks (and one good gale).
    Mine only lasted a week! The day after the scaffold came down. :sad:
    •  
      CommentAuthorSteamyTea
    • CommentTimeFeb 4th 2015
     
    Sounds about right. I need to get the ladder out.
    Needs to be on a longer pole anyway.
  3.  
    Peter in Hungary wrote:

    ''How Long Should Appliances Last??
    A life time''

    Well, by definition, they do. Unfortunately *you* mean *your* lifetime. The manufacturer means *a week longer than the guarantee or as much more as you are lucky to get*! :bigsmile:
    • CommentAuthortorrent99
    • CommentTimeFeb 4th 2015 edited
     
    Ahh the old bathtub curve....or a I translate it.... buy reconditioned hard drives! (they're pre-bathtubbed)

    On the original point I believe there is some EU law regarding consumer appliances having to last a reasonable length of time and for most things like TVs that's at least 2 years!

    (and my other rule of technology [which I dont' always follow ;-) ] buy the 2nd generation of a technology. The first generation doesn't quite work, but the 2nd generation works AND they haven't worked out how to make it with the cheapest least reliable components so it's a bit more bomb proof. Take my dads 1984 VHS video recorder, roughly 2nd generation, built like a brick sh**house. Lasted until the mid 2000s )
    •  
      CommentAuthorfostertom
    • CommentTimeFeb 4th 2015 edited
     
    Posted By: SteamyTeaabout why it is not worth repairing cheap consumer goods. Basically came down to the amount of stock that has to be carried and distributed (cost the same as a new item) and the labour content (higher than the objects price).
    That would make perfect sense, if all the 'wasted' materials were recovered and recycled. That means 'all', and it means disassembly back to single materials. And it means chemical decomposition back to virgin feedstock. And in addition to the work energy and/or human time it takes to do all that fiddly stuff, it also means considerable raw energy input to break chemical bonds of exothermically combined compounds.

    Failing that (and we're nowhere near capable of doing that across the board - until feedstock shortages force us to pay attention), then ST's logic only applies given unlimited continuing supplies of raw materials, manufacture-embodied energy, and environmental capability to absorb waste.
    • CommentAuthorSeret
    • CommentTimeFeb 4th 2015
     
    Posted By: fostertomThat means 'all', and it means disassembly back to single materials. And it means chemical decomposition back to virgin feedstock. And in addition to the work energy and/or human time it takes to do all that fiddly stuff, it also means considerable raw energy input to break chemical bonds of exothermically combined compounds.


    There's no way that would be economical. I had to do a quick study on some a simple appliance once (a desk telephone). The labour costs alone absolutely dwarfed the scrap value of the materials. The bottom line is we (not unreasonably) don't build things out of valuable stuff, so it has no value once it can't do the "value added" job that it was built for.

    Recycling isn't a good approach for a lot of small machines, but that doesn't mean you can't make design choices that improve the impact over the lifecycle. Making small appliances repairable or upgradable will do a lot more good than trying to recycle them at the end of their life IMO.
    • CommentAuthorSeret
    • CommentTimeFeb 4th 2015
     
    Posted By: torrent99Ahh the old bathtub curve....or a I translate it.... buy reconditioned hard drives! (they're pre-bathtubbed)


    Buy refurbished everything is what I tell people. Lots of big computer manufacturers like Dell sell their refurbs at a good reduction, and you get a machine that's actually more reliable than new, with a warranty. No-brainer IMO. Works for appliances too.
    • CommentAuthortorrent99
    • CommentTimeFeb 5th 2015
     
    <blockquote>Buy refurbished everything is what I tell people. Lots of big computer manufacturers like Dell sell their refurbs at a good reduction, and you get a machine that's actually more reliable than new, with a warranty. No-brainer IMO. Works for appliances too.</blockquote>

    Yes ex-corporate IT (Thinkpads rule ;-) ) is the best tech bargain around!
    Where do you get refurb appliances from though? (or do you just mean second hand?)
  4.  
    I found this an interesting concept - hire a boiler scheme: http://www.which.co.uk/news/2015/01/new-scheme-to-hire-a-boiler-and-avoid-upfront-cost-392496/

    Unfortunately it's overpriced as they point out but the concept is, I think, a valid one.

    I looked into this when writing my dissertation (a deliberately provocative proposal for disposable buildings) and found it interesting that the 'House of the Future' that Alison and Peter Smithson designed for the Ideal Home Show in 1956 envisaged a regularly changing interior and house fabric wrapped around a permanent set of white goods and services.

    At the time all these mod-cons were expensive but well built so I guess that wasn't so crazy to forecast when all the built fabric around was being torn down and rebuilt. Ironically we are now at the exact opposite of this situation due to planning restrictions and the pace of new technology.
    • CommentAuthorSeret
    • CommentTimeFeb 5th 2015
     
    Posted By: torrent99
    Where do you get refurb appliances from though? (or do you just mean second hand?)


    No, proper refurbished ones. Amazon, Ebay, some of the big chains like Currys, M&S, John Lewis do it.

    Some links on my old blog: http://andyduffell.com/techblog/?p=1451
    •  
      CommentAuthorfostertom
    • CommentTimeFeb 5th 2015
     
    Posted By: SeretThere's no way that would be economical ... The labour costs alone absolutely dwarfed the scrap value of the materials ... we don't build things out of valuable stuff, so it has no value
    There you've stated the present, blindly catastrophic problem. Present economics and value conventions conveniently allow investors/banks, producer/corporations and consumers to ignore a raft of true costs, thus offloading them onto our children and grandchildren, and/or onto third world.

    At least GBF members ought to be able to look a bit further ahead when doing 'a quick study on some a simple appliance'. We don't need to have it proved that what you've said is sadly true. Is there any awareness this situation cannot last 'forever' - is it OK that 'it'll see us out - just about - if all goes well'?

    What is the value of 'has no value' stuff, when virgin feedstock becomes scarce, expensive, and prioitised to military/security use? Don't forget that even if oil reserves may (or may not) be limitless, the EROEI of extraction and distribution will continue to plummet.

    Peak Oil (maybe not yet, maybe not ever) is recast into Peak EROEI (irrevocably far down the curve already).
    Limits to Growth is recast as Limits to Finite-Resource Consumption - a very different, and tolerable, thing.
    Even ST's Economics theory of perpetual substitution only postpones the inevitable.

    Either we organise foresightfully to cease consumption of virgin Finite Resources (thereby also ceaseing production of pollutants that it entails), or the planet will cease it for us.

    How do we cease that virgin consumption? Precisely by
    Posted By: fostertomif all the 'wasted' materials were recovered and recycled. That means 'all', and it means disassembly back to single materials. And it means chemical decomposition back to virgin feedstock. And in addition to the work energy and/or human time it takes to do all that fiddly stuff, it also means considerable raw energy input to break chemical bonds of exothermically combined compounds.

    Failing that (and we're nowhere near capable of doing that across the board - until feedstock shortages force us to pay attention), then ST's logic only applies given unlimited continuing supplies of raw materials, manufacture-embodied energy, and environmental capability to absorb waste.
    •  
      CommentAuthorSteamyTea
    • CommentTimeFeb 5th 2015 edited
     
    Posted By: fostertomEven ST's Economics theory of perpetual substitution only postpones the inevitable.
    Bit of a misquote and out of context, but we can substitute people for no people too, but that is going down a dangerous path and not one I support.

    The developed world is placing a price on the environmental costs, why we have environmental laws, which in the UK partly translate into planning laws. This makes it more costly to develop, so the cost may not be direct, but it is still there.
    •  
      CommentAuthorfostertom
    • CommentTimeFeb 5th 2015
     
    Posted By: SteamyTeaBit of a misquote and out of context
    Sorry bout that, but y'know what I mean.
    Posted By: SteamyTeaThe developed world is placing a price on the environmental costs
    Yeah but scratching the surface - and it's only the minor costs that Economics customarily chooses to incorporate so far, which is not for instance defined as the long term cost of human survival on Earth.

    That apparently is 'not Economics', so we need something with a different name.
    • CommentAuthorCWatters
    • CommentTimeFeb 5th 2015
     
    I'm liking our Bosch washing machine. Now 9 years old and used heavily - at least twice daily. Has had new motor brushes and a new pump which I've replaced myself. Was surprised how easy it was to replace these parts compared to machines I had in the 1980's.
    • CommentAuthorSeret
    • CommentTimeFeb 6th 2015
     
    Posted By: fostertomThere you've stated the present, blindly catastrophic problem. Present economics and value conventions...


    These are the same economic conditions which have existed since the dawn of time, because they're based on some pretty simple constants of human behaviour. Predicting any change in them is speculation at best. In the meantime, we have to deal with the dominant forces in the world as it is, or we won't change anything. You'll get a lot further swimming with the current than against it.

    You're right that scarcity of feedstocks would change the equation, but it wouldn't change the economic rules that define value.

    Posted By: CWattersI'm liking our Bosch washing machine. Now 9 years old and used heavily - at least twice daily. Has had new motor brushes and a new pump which I've replaced myself. Was surprised how easy it was to replace these parts compared to machines I had in the 1980's.


    I recently replaced the burnt out motor in my Dyson vacuum (DC motors, grumble, grumble) and had a similar experience. If something is designed to be maintainable then it tends to also be a lot easier to get the parts in my experience. All it takes is the original designer considering disassembly and repair in the original design.
    • CommentAuthorrhamdu
    • CommentTimeFeb 6th 2015
     
    Posted By: CWattersI'm liking our Bosch washing machine. Now 9 years old and used heavily - at least twice daily. Has had new motor brushes
    Bosch are now making washing machines with brushless motors and a 10-year motor guarantee.
  5.  
    Posted By: rhamduBosch are now making washing machines with brushless motors and a 10-year motor guarantee.


    Same thing with LG - they've been using direct drive drums with essentially a linear motor wrapped around it for many years now (I think that's how it works - definitely no brushes).

    Paul in Montreal.
    •  
      CommentAuthorfostertom
    • CommentTimeFeb 6th 2015
     
    Posted By: SeretThese are the same economic conditions which have existed since the dawn of time, because they're based on some pretty simple constants of human behaviour
    No, only for the last 2.5% of human history, since the agriculturural revolution changed everything, and 'value' (whether cash or barter) superseded natural abundance and gift (yes, and natural disaster too).
    That revolution has now worked through to its ad absurdum conclusion, devastation of both the natural world and the human psyche, and we're slowly moving into a Phase 3 'new story', which is entirely unpredictable but cannot help but incorporate and learn from both previous phases.
    Hopefully GBF people are amongst those who have an eye on that future and do what they do in order to envision it and move it along, rather than sticking fatalistically in the present end-game.

    Posted By: SeretYou'll get a lot further swimming with the current than against it
    That is necessary, but there's no substitute for the unpredictable (but eminently influenceable) chaos-theory 'flip' of a system that's acutely, sensitively, close to its inversion point - that's what we're living through.
    Do we welcome or fear the outcome?
    Will it be us, or our near-descendants, who experience the iminent revolutionary paradigm change?
    Do we try to fix the broken old system, or facilitate the new? Or both?
    • CommentAuthorSeret
    • CommentTimeFeb 6th 2015
     
    Posted By: rhamduBosch are now making washing machines with brushless motors and a 10-year motor guarantee.


    The availability of small cheap AC motors and brushless DC ones should really improve the longevity of appliances.

    Posted By: fostertom
    Do we welcome or fear the outcome?


    Change is inevitable, but until it happens we live in the world as it is now.
    •  
      CommentAuthorSteamyTea
    • CommentTimeFeb 6th 2015
     
    I think you mean random rather than chaos there.

    Many animals conform to our understanding of economic systems. Particularly strong in pack animals, like dogs and dolphins.
  6.  
    Posted By: rhamduBosch are now making washing machines with brushless motors and a 10-year motor guarantee.

    Posted By: Paul in MontrealSame thing with LG

    Probably the same motors / components.......and probably made in China

    Pet hate now is appliances that are unrepairable by design by using screw heads that require unobtainable drivers. I friend had a steam iron with a frayed dangerous cord, I can buy a generic replacement heat proof cord complete with plug but I can not get a driver head to disassemble the iron. Result junk the iron.
   
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