Results 1 to 4 of 4

Thread: Generators and central heating

  1. #1
    Join Date
    13th Mar 2004
    Read 0 Reviews

    Default Generators and central heating

    Does anyone out there know how much power is needed to start an average central heating boiler. My in-laws are looking to get a generator but I'm not convinced a small one would fire up a boiler, which is part of the reason for having one.

    Any thoughts would be welcome.
    Got it, drove it, broke it.

  2. #2
    Guru Mogwyth's Avatar
    Join Date
    22nd Jul 2005
    Nr Pwllheli, Gwynedd
    Read 0 Reviews

    Default Re: Generators and central heating

    Well the booklet for my inlaws one (we don't have central heating) which is quite a large one says 140watts, 5 amp fuse, internal fuse is 1.5 amps. Hope that helps
    Master of the Mystical Yeast and Magical Malt, Leader of the Known World (at least of those who have supped the Holy Ale)

    05 Discovery 3 4.4 V8 HSE
    13 Nissan Juke 1.5 dci

    It ain't what you've got, it's what you do with it that counts.

    Proud to be a member of the YCHJCYA2PDTHFH club.

  3. #3
    Apprentice dirt diggler's Avatar
    Join Date
    9th Aug 2004
    The Peoples Republic of Scotland
    Read 0 Reviews

    Default Re: Generators and central heating

    If its a combi system then theres probably a pump integral which is probably pulling the most juice, not sure about what power a pump uses but i could find out if that would help. The only other power drawn would be a divertor valve, PCB and the gas valve. This would still be using a 3 amp main fused spur.

    If its a system boiler then again the PCB and gas valve would be integral to the boiler but would probably have either and external pump and zone valve/ valves. Again using a 3 amp main fused spur.

    Ive no idea about generators but i would have thought any decent rated one would do.

  4. #4
    Supplier of forum Jump Leads Roger Whittle's Avatar
    Join Date
    8th Apr 2005
    The Jungles of SW London
    Read 0 Reviews
    Blog Entries

    Default Re: Generators and central heating

    As Dirtdiggler says, its the pump that's going to pull the most current and starting it is the problem for generators. Central heating is low pressure, so the motor starting isn't the problem that freezers are. That's a compressor as opposed to a pump and they really stop gennys, although get a big enough one and it'll run anything.

    The smallest gennys are usually 1 - 1.5 Kva and that ought to run a central heating, but you may not have any lights! 1.7Kva or around there ought to do it.

    Discovery LR3 HSE '56 plate in maroon.
    Series I 1949 80" Project - found to be 'rare' - and I now have a plan!
    My third Td5 Disco Auto 7 '53 plate in Blue. A it of a dog - it has to go and has now gone!
    Another Td5 Disco Auto 7, '51 plate Maroon - tired and tatty - gone.
    Discovery 2 TD5 Auto 7 seat '01 - Gone, and never called me 'Mother'.
    Series lla 109 2.25 (4) Diesel Hardtop '70-'72

    Only five countries in the world do not have Scouting as part of their youth culture; The Peoples Republic of China, Cuba, Democratic Peoples Republic of Korea, Lao People's Democratic Republic and Myanmar (Burma). Is it possible to trust any nation that does not allow Scouting? Andorra is trying.
    The second member of the YCHJCYA2PDTHFH club (on this forum).

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. oil filled central heating radiator
    By Neil in forum Non Landies!
    Replies: 0
    Last Post: 18th Jan 2013, 15:00
  2. Central Heating boiler replacement
    By 819 in forum Public Discussion
    Replies: 9
    Last Post: 25th Jan 2010, 10:51
  3. Central heating question...
    By Big Sandy in forum Public Discussion
    Replies: 4
    Last Post: 5th Jan 2009, 16:31
  4. Central heating help
    By Andrew Swift in forum Public Discussion
    Replies: 54
    Last Post: 15th Jan 2007, 23:39
  5. help, any central heating engineers out there
    By bilge rat in forum Public Discussion
    Replies: 5
    Last Post: 3rd Dec 2006, 22:09

Posting Permissions

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