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  1. #1
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    Log Gasification Boilers

    I'm about to start looking into getting a log boiler to heat the house and do the hot water, but before I even ring any companies I wanted to hear if anyone has any experience with log boilers?

    Who should to avoid? How realistic the payback periods are? The cost of the installation? And any other bits of info that would be useful to know before I start getting quotes.

    Thanks

  2. #2
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    Re: Log Gasification Boilers

    Just read all the other threads on this renewables section, should help you?

  3. #3
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    Re: Log Gasification Boilers

    I couldn't see anything relating to log boilers? I might not be looking hard enough...

    Specifically I've been looking at Eco Angus so far

  4. #4
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    Re: Log Gasification Boilers

    Quote Originally Posted by Mule View Post
    I couldn't see anything relating to log boilers? I might not be looking hard enough...

    Specifically I've been looking at Eco Angus so far

    Dragon is one Farm 2000 is another, etc.etc
    Farm Scale installations

  5. #5
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    Re: Log Gasification Boilers

    Those are 2 large scale biomass boilers, I'm looking at domestic/small scale commercial log boilers. I have a large amount of firewood available on farm that just needs to be processed, I'm looking for the most efficient way to use that firewood supply

  6. #6
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    Re: Log Gasification Boilers

    apparetly log burners are a pain to load you have to stack and pack the logs not just chuck them in, otherwise the fire burns without control,

  7. #7
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    Re: Log Gasification Boilers

    Quote Originally Posted by Mule View Post
    Those are 2 large scale biomass boilers, I'm looking at domestic/small scale commercial log boilers. I have a large amount of firewood available on farm that just needs to be processed, I'm looking for the most efficient way to use that firewood supply
    They have a range from small to larger boilers.

  8. #8

    Re: Log Gasification Boilers

    Quote Originally Posted by Mule View Post
    Those are 2 large scale biomass boilers, I'm looking at domestic/small scale commercial log boilers. I have a large amount of firewood available on farm that just needs to be processed, I'm looking for the most efficient way to use that firewood supply
    We have a 90 kw central boiler to heat 4 houses.
    runs on solid wood which we cut to 8-900mm and split a 10 inch log in half.
    although if wood is bone dry you can throw 12 inch diameter lengths in no probs.
    fill it up once every 3 days in summer running it on pure soft wood.
    when its cold once a day..
    prob be twice a day when it's in minus figures and prob have to mix some hardwood in to make it last longer.
    very pleased with it so far.
    boiler cost 15000
    inststsll just over 25000...
    more than welcome to have look if down this way

  9. #9
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    Re: Log Gasification Boilers

    Quote Originally Posted by Mule View Post
    I couldn't see anything relating to log boilers? I might not be looking hard enough...

    Specifically I've been looking at Eco Angus so far
    I installed a Eco Angus 80 kw boiler and 5000 litre accumulator tank last year. It heats a 6 bedroom farmhouse and 2 holiday cottages. In order for the gasification process to work correctly you really need well seasoned wood ( 20% dm). Last winter I did not have enough well seasoned wood and so ended up using Ash at about 30% dm. The boiler worked but just took longer to get into gasification mode and used more wood than it would have if the wood had been dryer. For a gasifying boiler to work properly it should burn hard and fast and heat an accumulator tank. This water in the tank is then used to heat DHW and central heating. During the summer I have been firing up the boiler twice a week and this provides DHW for 6 bathrooms, but during winter the boiler needs firing every day and during the really cold spell I was doing 2 fill ups, total burn time about 12 hours. We have about 40 acres of woodland so sourcing the wood is no problem but it is a lot of work to cut up and store and if you go away you need someone else to fuel the boiler or have a backup system. With rhi payments and fuel savings I reckon payback of 3 years . Capital cost was 30k but I installed it my self with help of local plumber.

  10. #10
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    Re: Log Gasification Boilers

    Quote Originally Posted by JGL View Post
    I installed a Eco Angus 80 kw boiler and 5000 litre accumulator tank last year. It heats a 6 bedroom farmhouse and 2 holiday cottages. In order for the gasification process to work correctly you really need well seasoned wood ( 20% dm). Last winter I did not have enough well seasoned wood and so ended up using Ash at about 30% dm. The boiler worked but just took longer to get into gasification mode and used more wood than it would have if the wood had been dryer. For a gasifying boiler to work properly it should burn hard and fast and heat an accumulator tank. This water in the tank is then used to heat DHW and central heating. During the summer I have been firing up the boiler twice a week and this provides DHW for 6 bathrooms, but during winter the boiler needs firing every day and during the really cold spell I was doing 2 fill ups, total burn time about 12 hours. We have about 40 acres of woodland so sourcing the wood is no problem but it is a lot of work to cut up and store and if you go away you need someone else to fuel the boiler or have a backup system. With rhi payments and fuel savings I reckon payback of 3 years . Capital cost was 30k but I installed it my self with help of local plumber.
    Hi JGL,

    It would be good to take a look at your installation if possible. I'm just looking at getting an 80ks Super Angus.

    Regards
    Bert

  11. #11
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    Re: Log Gasification Boilers

    Hi,
    I am currently writing a dissertation on the uptake of microgeneration (small renewable energy systems). I have got a survey below and it would be really helpful if anyone could spare 5 minutes to fill it in! Ideally, I would get a mix of people who do and don't have microgeneration systems! The survey is anonymous!


    https://goo.gl/forms/1OQTL3yWUDJMVs8M2


    Thanks in advance!

    Hector

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