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Ask The Trades › DIY Forum › Plumbing Questions › Stoves back boilers radiators

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Stoves back boilers radiators (Read 7935 times)

spike-newton

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Stoves back boilers radiators
May 5^th, 2006, 12:17am

Planning to install hot water in a rural cottage without electricity, with a Morso Squirrel stove with back boiler and gravity fed hot water system. Hoping to add a radiator(s) to system. Mains pressure good, traditional single floor cottage with plenty roof space for water tanks, feeder tanks.
Would probably thus be using water circulating through radiators as hot water through taps, with some kind of valve for summer time use.
Is this feasible?
Any good web sites/books? - can't find any info that dosen't include a 'pump' in overall circuit.

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Twobarrows GDPR opt-out Total Thanks: 0 For This Post: 0	Re: Stoves back boilers radiators Reply #1 - May 5^th, 2006, 3:51pm >Would probably thus be using water circulating through radiators as hot water through taps, with some kind of valve for summer time use. < Eh ?
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runninwata GDPR opt-out Total Thanks: 0 For This Post: 0	Re: Stoves back boilers radiators Reply #2 - May 5^th, 2006, 5:18pm hmm great!!! sludge coming out of your hot water taps!!
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thescruff Global Moderator Trade Member Author Offline Who said plumbing was easy. Posts: 6037 Total Thanks: 147 For This Post: 0 Gender: Trade: Plumber	Re: Stoves back boilers radiators Reply #3 - May 5^th, 2006, 5:18pm You cannot mix heating water with tap water. I would consider solar panel and other green things,but depend what you want to spend of course.
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spike-newton Junior Member Offline I love YaBB 1G - SP1! Posts: 5 Total Thanks: 0 For This Post: 0	Re: Stoves back boilers radiators Reply #4 - May 5^th, 2006, 5:28pm surely there is some alternative type of radiator that relies on copper piping suitable for hot water rather than any sludge residue assocuiated with normal radiators. Someone suggested a type of radiator that was mostly piping with additional 'fin' like pertrusions to conduct heat into room
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MAB GDPR opt-out Total Thanks: 0 For This Post: 0	Re: Stoves back boilers radiators Reply #5 - May 5^th, 2006, 5:53pm Like scruff has said you do not mix them.
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CWatters Super Member Offline "Daddy fick it" says James Posts: 5150 Total Thanks: 58 For This Post: 0 Gender:	Re: Stoves back boilers radiators Reply #6 - May 5^th, 2006, 7:00pm It wouldn't take much energy to run a motorised valve. Can't you rig up a small solar panel to a car battery something? I think you can get 12V motorised valves. That way you can steer the primary from the stove to a regular hot water tank or rads like a regular system.
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greg GDPR opt-out Total Thanks: 58 For This Post: 0	Re: Stoves back boilers radiators Reply #7 - May 5^th, 2006, 7:18pm or just plumb it in properly
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supersparky Administrator Trade Member Author Offline Posts: 6097 Total Thanks: 3 For This Post: 0 Gender: Trade: Electrician	Re: Stoves back boilers radiators Reply #8 - May 5^th, 2006, 7:41pm cant you get electricity at all? even in the most rural places its rare not to! maybe a solar panel setup?! anyway, back over to the pipe monkeys ss
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billythekid

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Re: Stoves back boilers radiators
Reply #9 - May 5^th, 2006, 8:00pm

we have a coal fire and back boiler setup here(farm cottage). What you need is an indirect cylinder, this uses the water heated in your back boiler to warm the water used for the H/W tap, but still keeps the two "waters" seperated.

You can't use the same water from your heating system for your Hot Water supply, and it wouldnt be a good idea even if it were allowed, once you used your hot water the heating system would be cold.

This way you can still have hot radiators even when you have used all you hot water. If your house is anything like mine (3 women) thats about 6 times a day...

using solar panels for secondary water heating is also a good idea, especially with the source being free.

How come you can't get electricity?

btk

« Last Edit: May 5^th, 2006, 8:02pm by billythekid »

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MarkS

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Re: Stoves back boilers radiators
Reply #10 - May 5^th, 2006, 8:55pm

You should also consider that the squirrel is a small stove and having a back boiler in a stove really stuffs up your heat output, you might need something bigger. You might also find that the warranty expects you to have it installed in an approved manner.

Our last house had heating and hot water provided by a wood burner, but with a 240v pump. its a simple set up but you are recommended to have thermostats controlling the flow so that you dont boil the water in the back boiler, whihc can happen if you try to depend on gravity/convection feed to power rads.

Dont know where your property is, but I would consider a small wind generator and a battery bank, which could give 12/24/48v supply as required, you could then run lv lights as well.

PV always seems expensive to me for the output you get.

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spike-newton

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Re: Stoves back boilers radiators
Reply #11 - May 5^th, 2006, 9:46pm

Concerning electricity supply, the cost of connection to grid is prohibitive. Cottage is remote in a deep gorge. Power coming in from above or below is problematic. Wind power is not really a reliant source in a gorge. Scotland is not the most sunny state for solar although worthy of consideration and the river that runs by at the foot of the garden is being investigated for hydro power but initial indications are there is not enough head. Present power is candles and gas lighting and cooking. Why not move you might say - unfortunatley the place is idyllic.
The recent addition of a petrol generator has allowed me to hoover for the first time there ever.
Wood there is plentiful hence thoughts towards wood stove heating.

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MarkS GDPR opt-out Total Thanks: 0 For This Post: 0	Re: Stoves back boilers radiators Reply #12 - May 6^th, 2006, 9:59am There is supposed to be a new small gas chp system out soon - to be sold by powergen ? Someone here will know more.
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CWatters Super Member Offline "Daddy fick it" says James Posts: 5150 Total Thanks: 58 For This Post: 0 Gender:	Re: Stoves back boilers radiators Reply #13 - May 6^th, 2006, 1:21pm I've heard about these. I suspect he doesn't have mains gas either. I've not heard of an oil CHP system unfortunately. Using LPG would be a tad expensive.
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plugwash Administrator Offline I love YaBB 1G - SP1! Posts: 1383 Total Thanks: 0 For This Post: 0 Trade: Not Specified	Re: Stoves back boilers radiators Reply #14 - Jun 12^th, 2006, 7:24pm if you have a generator that runs sometimes then possiblly you could rig up some kind of battery-inverter system to provide enough power for the CH valves etc 24/7
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