billytheghillie Posted February 15, 2014 Report Share Posted February 15, 2014 what size of multi-fuel stove with back boiler is needed to run 5 rads. cheers Quote Link to comment Share on other sites More sharing options...
felly100 Posted February 15, 2014 Report Share Posted February 15, 2014 Try google. Quote Link to comment Share on other sites More sharing options...
FatherandSon Posted February 15, 2014 Report Share Posted February 15, 2014 It depends on the room to be installed in. Use this! http://www.stovesonline.co.uk/calculator.asp Quote Link to comment Share on other sites More sharing options...
daz2202 Posted February 15, 2014 Report Share Posted February 15, 2014 What size are your rads ? Quote Link to comment Share on other sites More sharing options...
billytheghillie Posted February 15, 2014 Author Report Share Posted February 15, 2014 What size are your rads ? don't know as I have not flitted yet. Quote Link to comment Share on other sites More sharing options...
magman Posted February 15, 2014 Report Share Posted February 15, 2014 work out the btu's for each room and add them together to find out what stove size you need plenty online programs to work out the btu's Quote Link to comment Share on other sites More sharing options...
daz2202 Posted February 15, 2014 Report Share Posted February 15, 2014 Go to radcalcs.com that will give you the btu's required then divide that by 3.1429 to give you the kW requirement Quote Link to comment Share on other sites More sharing options...
crowdie2013 Posted February 15, 2014 Report Share Posted February 15, 2014 I'd be cautious about ordering online without having a suitably qualified heating engineer review plans and specify accordingly. I've seen a good few DIY projects totally fail and end up having to be fixed/replaced at considerably more cost. Just commenting with my work hat on but would be ashame to end up with a problem. All the best Quote Link to comment Share on other sites More sharing options...
The Croc Posted February 15, 2014 Report Share Posted February 15, 2014 Billie Have a look here http://www.charnwood.com/stove-calculator.aspx I have one of these, which very comfortably runs 6 rads http://www.charnwood.com/range/stove/slx-45.aspx and domestic hot water Brian Quote Link to comment Share on other sites More sharing options...
Alycidon Posted February 15, 2014 Report Share Posted February 15, 2014 (edited) I sell stoves for a living, Good advice already posted here about how many rads etc. a 600mm x 1000mm single rad will want about 1kw. Don't forget heat losses in the pipework and DHW requirements. To run 6 decent double rads + DHW look for about 16kw-20kw to the water. Then you need to look at heat requirements of the room where the stove is located, work out the VOLUME of the room in cubic meters ( roughly), divide by 12 for poor insulation, 14 for average and 16 for good insulation. So now you have 2 figures, heat output to the room (needs adhering to fairly closely ) and a desired heat output to the water. All you need to do now is find a stove that the wife likes the look of and allows and one that has the performance you desire. You may have to compromise a bit !!. You may not have considered that you may looking at a big stove with an overall heat output of 20-30kw, that will go through around 10 cubic meters of logs a winter, maybe more depending on how you use it. So get your fuel supply chain in place and costed up and work out where you are going to store at least 2 cubic meters of logs in the dry before you go to far along this road. Quality firewood in not cheap as timber is sold by auction prices are rising all the time. But things are somewhat easier is Scotland as there was a lot of timber planted there in the late 60s under a govt tax avoidance scheme. Get that sorted, then get a good plumber in, ideally one tied up with a local Hetas engineer who can install the stove and flue system and sign it off as safe to use, that is a legal requirement, get teh installer to supply the flue components. There is an awful lot of **** products on the web, we wont touch any of them as the installer is legally liable if they fail. Stove brands to look at, Arada Stratford Eco boiler and the new Villager boiler stove ranges. Morso DB15 and Dove, Boru 20kw and 30kw. Broseley Hercules Charnwood Stovax I sell all the above and are recommended, do NOT buy a cheap chinese stove, life is usually 3 - 5 years and you will find it almost impossible to get any replacement parts if and when needed. Pm me if you want any more details. A Edited February 15, 2014 by Alycidon Quote Link to comment Share on other sites More sharing options...
old rooster Posted February 15, 2014 Report Share Posted February 15, 2014 If the whole house is going to run off just 5 rads it might not be a massive place? A 20 to 30kw burner is a big old lump to fit in a room somewhere in the house (likeliest the living room or kitchen) Quote Link to comment Share on other sites More sharing options...
Dougy Posted February 16, 2014 Report Share Posted February 16, 2014 Think about being able to stoke it up too, look at hight inside. And get a thermostat fitted. ( got mine for £54 from manufacture not £160 from the place I got my fire from) Quote Link to comment Share on other sites More sharing options...
FatherandSon Posted February 16, 2014 Report Share Posted February 16, 2014 We have 5 rads and like in a mid terrace (100 years old) with a loft conversion. Our stove is a Hunter Hearald 5. I couldnt recommend the Hunters though, theyre plate steel as opposed to cast and it doesnt seem to get as hot as my neighbours cast stove. Quote Link to comment Share on other sites More sharing options...
kent Posted February 16, 2014 Report Share Posted February 16, 2014 Firstly look very seriously at a thermal store and batch burning. Burning solid fuels means varying heat output and this lends better to be more effective through a store via batch burning, Now consider I have a 10kw stove but only rarely will I stoke it up to that, it then will not run those rads to temp if they required 10kw total, again this points to a store, basically the store works like a big battery to run your heating and the stove is just a charger. the outcome of the stove running a 5kw is luke warm rads doing very little Like others have said work out the room requirements for heat (not as straight forward as you think as you need to consider insulation factors) then the rads required in each space and then the total KW draw. To be fair there are numerous different calcs but a good amount of experience is also needed to make the final call remember if your stove uses its output to heat the more efficient thermal store or straight through a std old fashioned vented system you wont also get that input into the area as direct appliance heat for space heating. For this reason I think stoves poor over a solid fuel boiler with only one purpose Thermal stores can also take heat from multiple sources so you can couple up all sorts of other things, solar, heat pumps, oil and gas etc Quote Link to comment Share on other sites More sharing options...
Catweazle Posted February 16, 2014 Report Share Posted February 16, 2014 I had one of these http://www.stovesonline.co.uk/wood_burning_stoves/dunsley-yorkshire-stove.html but the price is extortionate now. It was a really good stove though, always had plenty of hot water and very hot rads. Quote Link to comment Share on other sites More sharing options...
The Croc Posted February 16, 2014 Report Share Posted February 16, 2014 (edited) Just to give you an idea of amounts These are my wood store's, (2 you can't see) there's approx 8.5 m3 of logs. So far this winter I've burnt 3 1/2 m3 of logs, and 40 bags of coal, (coal for mainly night time burning) http://i1135.photobucket.com/albums/m632/BrianS91/744F42C7-5F8C-418E-A87E-BA6DC0994BEB-7278-000009CE27788002_zps240ecb78.jpg Edited February 16, 2014 by The Croc Quote Link to comment Share on other sites More sharing options...
Paul223 Posted February 16, 2014 Report Share Posted February 16, 2014 I must be very lucky My herald 8kw is more than capable of heating 5 rads, 2 of which are large double rads and 1 is a fancy large towel rad, plus hot water tank in my mid terraced cottage Quote Link to comment Share on other sites More sharing options...
Catweazle Posted February 16, 2014 Report Share Posted February 16, 2014 I must be very lucky My herald 8kw is more than capable of heating 5 rads, 2 of which are large double rads and 1 is a fancy large towel rad, plus hot water tank in my mid terraced cottage Never underestimate the insulation value of having two neighbours attached :-) Quote Link to comment Share on other sites More sharing options...
kent Posted February 16, 2014 Report Share Posted February 16, 2014 I must be very lucky My herald 8kw is more than capable of heating 5 rads, 2 of which are large double rads and 1 is a fancy large towel rad, plus hot water tank in my mid terraced cottage Not really only two external walls (most likely small windows in the other two exposed walls) Total volume? Heck when I had a mid terrace cottage I could have more than heated it with just an 8kw stove without the rads (couldn't heat the water in summer without cooking in the heat though) Quote Link to comment Share on other sites More sharing options...
Paul223 Posted February 16, 2014 Report Share Posted February 16, 2014 No, it's drafty old stone construction, we have both oil and a multi fuel stove, if we are being lazy and just running on oil you know within 20 mins of the boiler switching off as it cools off quick Quote Link to comment Share on other sites More sharing options...
Nikk Posted February 16, 2014 Report Share Posted February 16, 2014 I wouldn't fancy having a 10 or 20 KW woodburner in any room I was sitting in. We've got a 4.5 KW one and it can be like a furnace. Quote Link to comment Share on other sites More sharing options...
Archie-fox Posted February 16, 2014 Report Share Posted February 16, 2014 I wouldn't fancy having a 10 or 20 KW woodburner in any room I was sitting in. We've got a 4.5 KW one and it can be like a furnace. Mine is 5kw and is more than enough for my house...it's a shame I'm moving, but will look for a house with a open fire.. Quote Link to comment Share on other sites More sharing options...
crowdie2013 Posted February 16, 2014 Report Share Posted February 16, 2014 As per my previous post and those of guys in the trade whove posted here, get the job looked at 1st and go from there. The amount of failed stoves never mind back boiler installations is high so as b4, do it right once is my advice Quote Link to comment Share on other sites More sharing options...
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