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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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      CommentAuthorSteamyTea
    • CommentTimeDec 4th 2012
     
    • CommentAuthorjamesingram
    • CommentTimeMay 13th 2015 edited
     
    • CommentAuthortony
    • CommentTimeMay 13th 2015
     
    How can burning millions of tonnes of biomass and sending millions of tonnes of carbon into the atmosphere possibly be categorised as a zero carbon activity, carbon was added, faster than it can be re absorbed at that too.
    •  
      CommentAuthorSteamyTea
    • CommentTimeMay 13th 2015
     
    A quick and easy way is to work out the average tree ring count as that gives you the minimum time to reabsorb the CO2. Hard to do when they are mashed into pellets.
    Good to see that it is being questioned at long last. I questioned it 10 years ago and got criticise for my views. Oh well, never mind eh.
  1.  
    Posted By: jamesingramhttp://www.carbonbrief.org/blog/2015/05/investigation-does-the-uks-biomass-burning-help-solve-climate-change/" rel="nofollow" >http://www.carbonbrief.org/blog/2015/05/investigation-does-the-uks-biomass-burning-help-solve-climate-change/
    Investigation: Does the UK's biomass burning help solve climate change?


    Back to the future. Totally predictable see my comments 22 feb 2012 page 31. The dinosaur of drax is still generating using wood with an efficiency under 30% when in reality the wood pellets could be used for efficiency in excess of 80%. Pure madness.
  2.  
    • CommentAuthortony
    • CommentTimeMar 4th 2019
     
    When I said that it was not received at all well 😟
    •  
      CommentAuthordjh
    • CommentTimeMar 5th 2019
     
    Excellent stuff! Here's a link that isn't behind a paywall.

    https://www.climateliabilitynews.org/2019/03/04/biomass-european-union-lawsuit/
  3.  
    • CommentAuthortony
    • CommentTimeFeb 23rd 2020
     
    Information on this still needs to be much more widely disseminated

    Time lag of ten years is worrying in itself
    • CommentAuthorphiledge
    • CommentTimeFeb 23rd 2020 edited
     
    News of the ban made it onto the telly a few days back so I’m sure word is out amongst the trade
    •  
      CommentAuthordjh
    • CommentTimeFeb 24th 2020
     
    Posted By: jamesingram10 years later an the pennies dropped
    https://www.huffingtonpost.co.uk/entry/wood-burners-coal-fires-fuel-ban_uk_5e4fa09ac5b629695f58a521" rel="nofollow" >https://www.huffingtonpost.co.uk/entry/wood-burners-coal-fires-fuel-ban_uk_5e4fa09ac5b629695f58a521

    Is that available on the open web anywhere? Or could you post the gist of whatever it is?
    • CommentAuthorphiledge
    • CommentTimeFeb 24th 2020
     
    • CommentAuthorJeff B
    • CommentTimeFeb 24th 2020
     
    https://www.bbc.co.uk/news/uk-51581817

    I can understand this for city/town dwellers but what about the future for us country bumpkins with wood pellet boilers then? If they are banned too then I am in big trouble!
    •  
      CommentAuthordjh
    • CommentTimeFeb 24th 2020
     
    Posted By: Jeff BI can understand this for city/town dwellers but what about the future for us country bumpkins with wood pellet boilers then? If they are banned too then I am in big trouble!

    Thanks for the BBC links.

    They're not banning wood pellets are they though? So it doesn't affect you. Who knows what the future holds? No point worrying about maybes.
    • CommentAuthorphiledge
    • CommentTimeFeb 24th 2020
     
    Its only retail sale of unseasoned wood thats being banned. For dry wood and volumes of wet wood over 2m2 its business as usual........... for the time being!!
  4.  
    The BBC article clearly states that they are not banning the stoves just certain types of fuel e.g. small lots of wood or logs i.e. less than 2m3. Which means that those with wood burning stoves in towns with no facilities to store or season wood will have great difficulty in getting fuel. For those who are rural and off the gas grid (and presumably have storage space) shouldn't have a problem.

    Of course forcing sales of wood in greater than 2m3 doesn't mean that people will hence forth only burn seasoned wood and as there are no powers for the authorities to forceable inspect then change may be slow to come.
    • CommentAuthorphiledge
    • CommentTimeFeb 24th 2020 edited
     
    Posted By: Peter_in_HungaryWhich means that those with wood burning stoves in towns with no facilities to store or season wood will have great difficulty in getting fuel


    Im sure theres plenty of seasoned or kiln dried logs available in small bags. The tree surgeon that uses our yard delivers any quantity people want with delivery factored into the price for small loads.
  5.  
    Posted By: philedge
    Posted By: Peter_in_HungaryWhich means that those with wood burning stoves in towns with no facilities to store or season wood will have great difficulty in getting fuel


    Im sure theres plenty of seasoned or kiln dried logs available in small bags. The tree surgeon that uses our yard delivers any quantity people want with delivery factored into the price for small loads.

    The point of the article is that it will soon be contrary to the regs to sell fire wood in quantities less than 2m3. I suspect that the tree surgeon delivers small quantities almost straight off the job, very green and with birds still singing in the branches - which IMO is the type of fuel that the new regs want to stop. There are no plans AFAIK to have any sort of quality control (e.g. moisture content) process, rather an outright ban.
    • CommentAuthorJeff B
    • CommentTimeFeb 24th 2020
     
    <blockquote><cite>Posted By: djh</cite><blockquote><cite>Posted By: Jeff B</cite>I can understand this for city/town dwellers but what about the future for us country bumpkins with wood pellet boilers then? If they are banned too then I am in big trouble!</blockquote>
    Thanks for the BBC links.

    They're not banning wood pellets are they though? So it doesn't affect you. Who knows what the future holds? No point worrying about maybes.</blockquote>

    True, yes, I realise that the ban only applies to unseasoned logs, perhaps regarding pellets I should have added "if they are banned too in the future". It seems that on the continent a huge number of folk use wood pellets, much more than in the UK so a ban on these would create an enormous problem!

    We invested in a wood pellet boiler to get away from oil, as we believed we were doing the right thing. I understood that pellets were manufactured from sawdust and waste wood off-cuts. However since then I must confess I feel a bit uneasy about the notion that burning pellets is a greener option (as trees are renewable) because:

    (a) it seems that actual trees are now being cut down to make pellets rather as well as from sawdust /waste wood.

    (b) burning pellets releases a lot of CO2 quickly and it presumably will take a long time for newly planted replacement trees to reabsorb that CO2.

    I am limited in alternative choices. ASHP not man enough for our place (at least not with current technology - would definitely go that way if there is some dramatic development in COP values), GSHP prohibitively expensive, bottled gas/oil possible but a retrograde step, electric boiler not man enough. On top of that I have the worry that our pellet boiler manufacturer has gone out of business (as has the installer!) and getting spare parts in the future could be big issue!

    I am continuing with a programme of IWI. Have recently looked at EWI but having done costings, realised it is well outside my budget.
    • CommentAuthorphiledge
    • CommentTimeFeb 24th 2020
     
    Posted By: Peter_in_Hungary
    The point of the article is that it will soon be contrary to the regs to sell fire wood in quantities less than 2m3. I suspect that the tree surgeon delivers small quantities almost straight off the job, very green and with birds still singing in the branches - which IMO is the type of fuel that the new regs want to stop. There are no plans AFAIK to have any sort of quality control (e.g. moisture content) process, rather an outright ban.


    I dont think thats correct. Its only WET wood that is being banned in small quantities <2M3. Dry wood is still unrestricted so freely available in large or small quantities.

    All the logs our tree surgeon processes in our yard are split and seasoned- worth far more than arisings dropped straight from site;)

    Ive not seen any figures for permitted moisture content but think it will be whatever can be achieved with air drying in the UK climate- alot of people will be out of business if its less!
    • CommentAuthorWeeBeastie
    • CommentTimeFeb 24th 2020
     
    The (eventual) ban on sale of wet wood and coal applies to England only. Here in Scotland we are awaiting the outcome of consultation later this year. Last year's independent report implied a similar strategy to Defra's.

    I suspect restricting fuel will make little difference to the air quality for many of us. More and more stoves are being installed around where I live. If anything, the recent news stories give the impression that burning dry wood or 'smokeless' fuel is completely harmless. So few people seem to know the dangers to health of PM exposure.
    • CommentAuthorBeau
    • CommentTimeFeb 25th 2020 edited
     
    Posted By: philedge
    Posted By: Peter_in_Hungary
    The point of the article is that it will soon be contrary to the regs to sell fire wood in quantities less than 2m3. I suspect that the tree surgeon delivers small quantities almost straight off the job, very green and with birds still singing in the branches - which IMO is the type of fuel that the new regs want to stop. There are no plans AFAIK to have any sort of quality control (e.g. moisture content) process, rather an outright ban.


    I dont think thats correct. Its only WET wood that is being banned in small quantities <2M3. Dry wood is still unrestricted so freely available in large or small quantities.

    All the logs our tree surgeon processes in our yard are split and seasoned- worth far more than arisings dropped straight from site;)

    Ive not seen any figures for permitted moisture content but think it will be whatever can be achieved with air drying in the UK climate- alot of people will be out of business if its less!


    I am in the trade and the target is below 20% moisture content. Big outfits selling over 600 cubic meters a year have to comply by next Feb and smaller ones have until Feb 2022. 20% is just achievable through air drying in much of the country but is difficult and force those in wet areas to use kilns to hit this target. I get the intentions of these regs as burning wet unseasoned wood is far more polluting than burning dry but I suspect it will backfire. The snag is a huge amounts of wood is sold as mentioned by tree surgeons moving their waste. I know some of these guys and few actually dry their logs properly and the logs are sold cash in hand so are highly unlikely to be regulated in the future. The bigger sellers will turn to kilns as have many already and the kilns run on wood and they get payed through the RHI to do this. All the kiln set ups I have seen to date are belching out smoke so presumably not hitting the target temps for cleaner burning. The other growing market is imported kiln dried logs from eastern Europe.

    I think the presure should have been applied to the end user. There was a case on here with a guy who had a neighbour who's fire smoked a lot. A good stove running with dry wood (I would say below 25% works fine) will not emit any visible smoke or smell once up to temp. The biggest problems I see come from irresponsible users who scavenge some wet wood from a mate or as I saw just last week a chap burning some offcuts of creosoted telegraph pole he left in the rain! Also open fires basically cant get to clean burn temps. These new reg will not affect either. Give local councils some power to act on the end polluter who has caused a nuisance. If you see smoke coming from a chimney for more than 10mins they are burning wet wood or not using the stove as they are designed.

    I dont know but suspect the majority of stove related pollution comes from a minority of users. Banning open fires would have made more sense IMO
    • CommentAuthortony
    • CommentTimeFeb 25th 2020
     
    It is not the smoke that you can that is so harmful as the particulates that can’t be seen
    • CommentAuthorBeau
    • CommentTimeFeb 26th 2020
     
    Posted By: tonyIt is not the smoke that you can that is so harmful as the particulates that can’t be seen


    But the two are linked. The point of the new regs is to improve air quality. Burning wet wood will more than likely end up with too a low a burn temps which manifests itself in smoke and more of the invisible particulates. Higher temps means no smoke and far fewer particulates. I guess they get burnt like they do in a DPF when doing a regen.
    • CommentAuthorRobL
    • CommentTimeFeb 26th 2020
     
    Has anybody here got a stove with a catalytic converter? Any experience of them ?
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