Your browser isn't supported
It looks like you're using an old web browser. To get the most out of the site and to ensure guides display correctly, we suggest upgrading your browser now. Download the latest:

Welcome to the MSE Forums

We're home to a fantastic community of MoneySavers but anyone can post. Please exercise caution & report spam, illegal, offensive or libellous posts/messages: click "report" or email forumteam@.

    • nxf
    • By nxf 13th Feb 18, 9:36 AM
    • 14Posts
    • 1Thanks
    Log Stove sizes
    • #1
    • 13th Feb 18, 9:36 AM
    Log Stove sizes 13th Feb 18 at 9:36 AM
    I am looking for a traditional looking Log stove (with a boiler) that heats a small cottage room and the boiler part to feed into a (not yet purchased) thermal store. I have used the calculation of 1kW for every 14 cubic metres which equals 2.6kW.

    The room has two doors that are left permanently open so we guess about 5kW will do? (Also 5kW is the largest before a ventilation hole is required in the external wall).

    As an example the Stovax Stockton 8HB nominal outputs 4.9kW to room and 8.2kW to boiler. What I don't understand is why the room is not heated to 8.2kW? as a stove is basically a metal box with an exhaust and also it requires the ventilation hole even though it states 4.9kW is to the room?????

    Any help would be most appreciated.

    (Please don't ask me to contact Stovax as I have emailed with no response and also phoned twice and not got through after 1/2 hour waiting each time)
Page 1
    • Ectophile
    • By Ectophile 13th Feb 18, 9:08 PM
    • 3,146 Posts
    • 2,023 Thanks
    • #2
    • 13th Feb 18, 9:08 PM
    • #2
    • 13th Feb 18, 9:08 PM
    The back of the stove will be full of water. That will absorb heat from the fire whether you need to to or not. The 4.9kW is what's left over after heating the water.

    You need to make sure the hot water can always go somewhere - try to block the flow and the stove is liable to explode.

    I don't think you can claim that stove is less than 5kW for ventilation purposes. The total output of it is a claimed 10kW (the maths seems a bit odd there).
    If it sticks, force it.
    If it breaks, well it wasn't working right anyway.
    • FreeBear
    • By FreeBear 13th Feb 18, 10:25 PM
    • 1,630 Posts
    • 2,406 Thanks
    • #3
    • 13th Feb 18, 10:25 PM
    • #3
    • 13th Feb 18, 10:25 PM
    If you want a small stove with a back boiler, have a look at the Hobbit from Salamander -

    Dinky little thing and rated at 4Kw.
    Her courage will change the world.

    Treasure the moments that you have. Savour them for as long as you can for they will never come back again.
    • matelodave
    • By matelodave 13th Feb 18, 10:35 PM
    • 3,582 Posts
    • 2,228 Thanks
    • #4
    • 13th Feb 18, 10:35 PM
    • #4
    • 13th Feb 18, 10:35 PM
    The stove requires ventilation for combustion and it's considered that a 5kw stove can get enough air without additional ventilation.

    However a 5kwh stove with a 8kw back boiler becomes a 10-12kw stove and so requires extra air otherwise you are in danger from CO poisoning.

    As said above the water flowing through the back boiler will absorb a significant amount of heat and thus reduce the heat available to warm the room. Once the boiler is heated then the extra heat will be radiated into the room so you need to make sure that the boiler can circulate the hot water otherwise it will boil,
    Love makes the world go round - beer make it go round even faster
    Look after our planet - it's the only one with beer
    • Krapsite
    • By Krapsite 5th Mar 18, 4:30 PM
    • 7 Posts
    • 4 Thanks
    • #5
    • 5th Mar 18, 4:30 PM
    • #5
    • 5th Mar 18, 4:30 PM
    My Charnwood 4 has been perfect for 13 years so a reliable make. Spares available if needed -only glass and new door seals. You ill need a larger one than 4 KW . Made on Isle of Wight.
Welcome to our new Forum!

Our aim is to save you money quickly and easily. We hope you like it!

Forum Team Contact us

Live Stats

1,866Posts Today

8,496Users online

Martin's Twitter
  • Nearly at the Cheshire Show. Doing an @itvMLshow there today and tomorrow. Do say hi if you're there or ask a question.

  • Good morning. I'm on the train to go to the Cheshire Show today to film for an @itvmlshow Roadshow. Looking forwa?

  • Early days, but so far a huge majority - 19 in 20 people - support legalising cannabis for medical use. Whereas t?

  • Follow Martin