Page 1 of 4 123 ... LastLast
Results 1 to 30 of 95

Thread: Dragon boilers

  1. #1
    Senior Member
    Join Date
    Feb 2013
    Location
    M40 J15
    Posts
    327

    Dragon boilers

    I thought I'd continue the thread . .

    We have a Dragon D20 with 17000l accumulator tank heating 4 houses & also providing heat or hot water to 3 sheds. We're currently burning about 7 or 8 pallets twice a day. It was a significant investment, but we are very pleased with it.


  2. #2
    Senior Member
    Join Date
    Feb 2013
    Location
    West Northants
    Posts
    1,169

    Re: Dragon boilers

    Good idea for a thread Roger, I'm sorry I didn't manage to get across to see you the other day. How do you heat hot water; are you doing it with a direct draw from the accumulator tank or are you using a heat exchanger of some sort? We are wondering if we can heat hot water in our cottages and farm house with one, the house has a hot water cylinder but the cottages are on combi boilers. I understand you can get heat exchangers but haven't looked in to it yet.
    Stay in Northamptonshire - meadowviewcottages.co.uk

  3. #3
    Senior Member
    Join Date
    Feb 2013
    Location
    M40 J15
    Posts
    327

    Re: Dragon boilers

    Quote Originally Posted by foxbox View Post
    Good idea for a thread Roger, I'm sorry I didn't manage to get across to see you the other day. How do you heat hot water; are you doing it with a direct draw from the accumulator tank or are you using a heat exchanger of some sort? We are wondering if we can heat hot water in our cottages and farm house with one, the house has a hot water cylinder but the cottages are on combi boilers. I understand you can get heat exchangers but haven't looked in to it yet.
    We have a flow & return heat main from the accumulator. We also use heat exchangers, then there is no problem with head of water etc
    I don't know anything about combi boilers, but if you have an indirect water cylinder it's easy.
    It all seems scary initially, but really it's very simple.
    edit
    Ive been trying to post a picture but photo bucket won't cooperate
    I will try again tomorrow
    Last edited by rogerm; 21-02-13 at 10:42 PM. Reason: Add text

  4. #4
    Senior Member
    Join Date
    Feb 2013
    Location
    West Northants
    Posts
    1,169

    Re: Dragon boilers

    Thanks Roger, rough figures suggest one pallet is heating 1000l then. I know they work but I still can't quite get my head around the fact that a dozen pallets can heat all that water!!
    Stay in Northamptonshire - meadowviewcottages.co.uk

  5. #5
    Senior Member
    Join Date
    Feb 2013
    Location
    M40 J15
    Posts
    327

    Re: Dragon boilers

    I wouldn't like to suggest a pallets to litres ratio but the heat meters could give us more information
    Statistics don't matter here, other than the houses have never been so hot & the women have never been so happy

    I would have thought that with holiday lets, smoke might be the biggest concern ?
    it depends on wind, fuel & boiler
    the important thing is to site your boiler as far away as you can, usually to the NE

  6. #6
    Senior Member
    Join Date
    Feb 2013
    Location
    West Northants
    Posts
    1,169

    Re: Dragon boilers

    Fortunately the site we have in mind is exactly that, quite a distance from the house, even further from the cottages and NE of them all so we are off to a good start. Do you have to re-light it each time you refuel or does it have enough embers in the bottom to start it up again when you stuff more pallets in the front?
    Stay in Northamptonshire - meadowviewcottages.co.uk

  7. #7
    Senior Member
    Join Date
    Feb 2013
    Location
    M40 J15
    Posts
    327

    Re: Dragon boilers

    If you load twice a day the embers usually get it going again
    Load it once a day & you will need your matches.

    Another thing we have done is remove the drilled box section duct/vent in the bottom of the chamber.
    We had a nasty flare up re-loading & couldn't shut the door properly as the duct had moved slightly
    We planned to shorten the duct but have discovered that you still get a clean burn without it

  8. #8
    Senior Member
    Join Date
    Feb 2013
    Location
    Glamorgan
    Posts
    1,914

    Re: Dragon boilers

    Have you a new door on that Rog as looks very clean and no heat/smoke marks compaired to rest of dragon?

  9. #9
    Senior Member
    Join Date
    Feb 2013
    Location
    M40 J15
    Posts
    327

    Re: Dragon boilers

    The black around the door was caused when we couldn't shut the door & the flames came a leaping

    hows yours going Rob, can you get some pics up - you might need photo bucket ?

  10. #10
    Senior Member
    Join Date
    Feb 2013
    Location
    M40 J15
    Posts
    327

    Re: Dragon boilers

    Rehau pipe rising up into shed next to my house
    heat exchanger & meter mounted on wall, pump is on house/central heating side of exchanger


  11. #11
    Senior Member
    Join Date
    Feb 2013
    Location
    M40 J15
    Posts
    327

    Re: Dragon boilers


  12. #12
    Senior Member
    Join Date
    Feb 2013
    Location
    M40 J15
    Posts
    327

    Re: Dragon boilers

    The same thing fitted neatly into a kitchen cupboard

  13. #13
    Senior Member
    Join Date
    Feb 2013
    Location
    Glamorgan
    Posts
    1,914

    Re: Dragon boilers

    Nice rog, but is that heat meter installed correct.
    Mine had to be ither tilt 45o back or for upsidedown but no flat ?
    How do you stick photo's on here?

  14. #14
    Senior Member
    Join Date
    Feb 2013
    Location
    M40 J15
    Posts
    327

    Re: Dragon boilers

    Quote Originally Posted by RGT View Post
    Nice rog, but is that heat meter installed correct.
    Mine had to be ither tilt 45o back or for upsidedown but no flat ?
    How do you stick photo's on here?
    have a look at the sticky in pictures section, easier than me trying to explain !

  15. #15
    Senior Member
    Join Date
    Feb 2013
    Location
    Glamorgan
    Posts
    1,914

    Re: Dragon boilers

    Thanks Rog.
    Did you get your system rhi yet?

  16. #16
    Senior Member
    Join Date
    Feb 2013
    Location
    M40 J15
    Posts
    327

    Re: Dragon boilers

    Finally got written report from meter supplier today, 2 weeks since IMR discovered boiler meter was a flow type not return type so software converted/upgraded
    Once the IMR is complete, I hope to be nearly there

  17. #17
    Senior Member
    Join Date
    Feb 2013
    Location
    Glamorgan
    Posts
    1,914

    Re: Dragon boilers

    One for sale in that section on here anyone?

  18. #18
    Senior Member
    Join Date
    Feb 2013
    Posts
    201

    Re: Dragon boilers

    ive just taken down an old silage pit which had railway sleeper walls and im wondering if its ok to burn them through a dragon D20 if i get one?

  19. #19
    Senior Member
    Join Date
    Feb 2013
    Location
    Glamorgan
    Posts
    1,914

    Re: Dragon boilers

    Quote Originally Posted by Chippy View Post
    ive just taken down an old silage pit which had railway sleeper walls and im wondering if its ok to burn them through a dragon D20 if i get one?
    You would have to cut up into chunks first, but fumes given off would be bad?

  20. #20
    Senior Member
    Join Date
    Feb 2013
    Location
    M40 J15
    Posts
    327

    Re: Dragon boilers

    Quote Originally Posted by Chippy View Post
    ive just taken down an old silage pit which had railway sleeper walls and im wondering if its ok to burn them through a dragon D20 if i get one?
    Go steady, they would be rocket fuel - literally

    I think you would invalidate your warranty & you would be il eligible for RHI

  21. #21
    Senior Member
    Join Date
    Feb 2013
    Location
    Glamorgan
    Posts
    1,914

    Re: Dragon boilers

    Quote Originally Posted by Chippy View Post
    ive just taken down an old silage pit which had railway sleeper walls and im wondering if its ok to burn them through a dragon D20 if i get one?
    Don't think it is classed as energy crop residules?

  22. #22
    Senior Member
    Join Date
    Feb 2013
    Location
    M40 J15
    Posts
    327

    Re: Dragon boilers

    How easy is it to send heat meter readings for payment, our 1st quarter due to read next week

  23. #23
    Senior Member
    Join Date
    Feb 2013
    Location
    Glamorgan
    Posts
    1,914

    Re: Dragon boilers

    click on periodic data tab, then rhi accredited installation name from drop down box, enter all your meter readings, minus ineligible data, and % used figures, and click submit.

  24. #24
    Senior Member
    Join Date
    Feb 2013
    Posts
    201

    Re: Dragon boilers

    just ordered my D20 with 10000 litre tank and hoping it gets installed before they drop RHI again

  25. #25
    Senior Member
    Join Date
    Feb 2013
    Location
    Glamorgan
    Posts
    1,914

    Re: Dragon boilers

    July is it ?
    Notice the domestic premium has increase in value though?

  26. #26
    Senior Member
    Join Date
    Feb 2013
    Location
    Scotland
    Posts
    584

    Re: Dragon boilers

    Quote Originally Posted by RGT View Post
    You would have to cut up into chunks first, but fumes given off would be bad?
    Ive burnt telegraph poles in a wood burner, they give small explosions every now and again one would have to be careful burning huge bits in a enclosed space.

  27. #27
    Senior Member
    Join Date
    Feb 2013
    Location
    M40 J15
    Posts
    327

    Re: Dragon boilers

    My brother made this ash scoop

    s672.photobucket.com/user/rogerm_photos/media/image_zpsd7df72f1.jpg.html][/URL]

  28. #28
    Senior Member
    Join Date
    Feb 2013
    Location
    M40 J15
    Posts
    327

    Re: Dragon boilers

    s672.photobucket.com/user/rogerm_photos/media/image_zps0d8a50b5.jpg.html][/URL]

  29. #29
    Senior Member
    Join Date
    Feb 2013
    Location
    West Northants
    Posts
    1,169

    Re: Dragon boilers

    That looks pretty handy Roger, are you removing nails etc from the ash so it can be spread or is it just binned at present?
    Stay in Northamptonshire - meadowviewcottages.co.uk

  30. #30
    Senior Member
    Join Date
    Feb 2013
    Location
    M40 J15
    Posts
    327

    Re: Dragon boilers

    Quote Originally Posted by foxbox View Post
    That looks pretty handy Roger, are you removing nails etc from the ash so it can be spread or is it just binned at present?
    Bigger stuff gets thrown in the scrap bin, nails etc are buried with the ash

    the scoop cost about 300 in materials, does the job in 2 minutes, before it took 1/2 hr with a shovel, mask, overalls, goggles etc sweating inside at 30-40 deg C
    The steel for the scoop was pre-curved, it came from someone who re-lines Keenans
    we clean out the double pass pipes with a length of 4" plastic waste pipe, easier to handle than the auger supplied

    Edit
    my Mrs complained the house was too hot the other day ! Not many farmers wives say that I bet

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •