Not quiet firewood but related ...

[Alycidon]

There's nowhere to store hot water in the pressurised systems, a friend of mine looked into it and all the plumbers/heating engineers he tried told him to just use a fire to heat his room and leave the door open to circulate the heat.

 

Or an Ecofan.

 

A

[Welshwoodsman]

I have wood burning stove with back boiler,that I would love to use to heat the house.

 

Could anybody point me in the right direction to fit it into my centralheatingsystem.

 

The house has a old type system with a tank fitted with a coil.

 

Could I use the the back boiler like a radiator in reverse?

 

 

Yes-

We have morso dove, with boiler- feeding into a heatstore. Flash coil for hot water, and water in heatstore is shared with central heating. Couple of hours of running stove, and heatstore is at 95 C. In winter- will run 18 rads with the stove barely struggling- and do endless hot water. Great system. Was about 4k to put in incl stove, boiler, chinmey lining and heatstore and 30mm pipework to loft.

 

 

Sent by smoke signal from my teepee.

[ArthurBottlesworth]

Fair play, I'm just saying sometimes cheap isn't always best, when I bought my 550 cog I could of save about £50 getting it from Jonsie, but I bought it local because if there is a problem I can take it in and deal with them face to face and not have to send it back and pay for postage or get attitude off my local dealer as to why I don't take the saw back to where I bought it.

 

True but I get fed up with guys messing me about BIT OF A RANT TO FOLLOW

 

When I bought my Jotul went into woodburner shop in St Asph ( local supplier ) and stood watching guys doing nothing in the shop, asked three times for someone to serve me..after forty minutes ! Walked out and bought off the net....

 

If they coudn't be bothered to serve me when I'm spending £2k what service am I going to get later?

 

Put chainsaw into local husky dealer for straightforward repair......two months later still dicking about , bought new one off net and waited to see how long it took them ( 4 months ) not very good service, they told me 1) needed carburettor, 2) needed piston and cylinder, 3) and summat else I can't remember ....ended up buying third saw from them ..... Leaving me a bit oversawed as I only cut frewood for myself

 

Put strimmer into another local dealer, told unrepairable , bought new strimmer from them, Bit pissed off when my neighbour turned up with secondhand strimmer he'd bought from them ......

 

Car not handling well, Put into garage fitted set dampers, tyres, front suspension arms , not sorted , so full geometry alignment, replaced more suspension and anti roll bars, still not sorted eventually got them put on ramp for me, three minutes with screwdriver and found worn bushes in rear track control arms - job sorted ---- BUT WHY DO I HAVE TO SORT IT

 

I'd love good local service and would pay reasonable amount for it .....

 

Still above is nothing Compared to AXA PENSION SERVICES who I calculate have cost me £100k .......

 

When you find good servce you treasure it.....but the service comes first .....

[Alycidon]

Has anyone seen this kind of set up in use in a closed / pressurised heating system??

 

Grande 14kW Solid Fuel Boiler Stove

 

Something like this could be great for me (long term when funds allow)

 

Cheers

 

Lloyd

 

 

 

Stoves or wood burning cookers when used in a pressurised (pumped) system need to automatically get rid of excess heat in the event of an electricty cut ( so no pumping). Some of the leading manufacturers have come up with an additional cold feed to the boiler with a linked outlet taking the hot water out of the building. Called a Qwench system I have seen it on the new Esse 990CHQ cooker and the Morso DB15 boiler stove. Does not sound like this stove is so fitted but the pipework on the back is far more complicated than a standard boiler stove so it may have some system to achieve the same thing.

 

Grande 14kW Solid Fuel Boiler Stove

 

Looking at the price it must be chinese in origin, I would question the availability of parts especially if the current importer goes under. Other than glass and firebricks generally parts are not routinely available for chinese stoves. Average service life of a chinese stove is around 5 years, as such they represent very poor value for money compared to Stratford which are English made from English steel with a 5 year boiler warranty, They are my favourite boiler stove and represent excellent value. Cost is over double the chinese one though,

 

The output is stated at 6kw to the room so fine for a 7m x 5m room with average insulation. 8kw to water will run 3 600x 1000 double rads allowing for 1kw of heat loss in the pipework. There is no separate outlet for DHW which seems odd unless its intended to dump all its heat into a bulk energy store. Usually boiler stoves have two inlets and two outlets.

 

So you pays your money you takes your pick.

 

A

Edited August 31, 2014 by Alycidon

[Alycidon]

Yes-

We have morso dove, with boiler- feeding into a heatstore. Flash coil for hot water, and water in heatstore is shared with central heating. Couple of hours of running stove, and heatstore is at 95 C. In winter- will run 18 rads with the stove barely struggling- and do endless hot water. Great system. Was about 4k to put in incl stove, boiler, chinmey lining and heatstore and 30mm pipework to loft.

 

 

Sent by smoke signal from my teepee.

 

 

 

The Dove boiler stove is a classic old stove designed around the use of smokeless coal although it burns wood well. Morso's new DB15 boiler stove is arguably the most advanced boiler stove in the world. Downburn technology even allows the use of bituminous coal.

 

Morso DB15 - Morsø Making Life Warmer

 

A

[openspaceman]

I have wood burning stove with back boiler,that I would love to use to heat the house.

Could anybody point me in the right direction to fit it into my centralheatingsystem.

The house has a old type system with a tank fitted with a coil.

Could I use the the back boiler like a radiator in reverse?

 

Yes with a caveat that the feed from the feed and expansion tank should be direct to the input of the boiler and the expansion pipe should be ( in the past but may have changed) a 22mm pipe direct to the FandE tank. This can cause problems with pump over into the tank if there is a lot of resistance in the radiator circuit.

 

I know there have been changes in the regs with regard to solid fueled boilers and pressurised system but I thought they were only allowed domestically on mechanically stoked systems.

 

The reason was that in a vented system if the boiler stove was filled and left running and the water boiled it was made up with cold water from the feed and expansion tank. With a pellet boiler the pressurised system has the capacity to dissipate the heat because there is only a small amount of fuel in the stove but with a log burner if the fire runs away, perhaps because of poor door sealing, then there is enough energy in the wood to cause the temperature to rise beyond boiling point and above set system pressure, the pressure relief then blows. In a small system without a large accumulator the system can still boil dry. Incidentally the pressure relief valves seldom reseat after an over pressure excursion and need rebuilding or replacing IME. A system with a big accumulator can absorb the heat and there is far too much water to boil it dry, also the subsequent low system pressure (after things have cooled down) often prevents a restart until water is topped up.

[Lloyd--]

Well as I had a pressurised system in the house when I bought it I would rather a solution that 'tied' into this especially as the combi boiler is fairly new. The make model and even cost of the stove is something I'd consider nearer the time was just interested in stoves that could be linked into pressurised systems and the positives / negatives

 

Cheers

[difflock]

I really really must order some of Morso's most excellent firewood.

 

 

1 cubic metre of Morso Fire Wood

[openspaceman]

Well as I had a pressurised system in the house when I bought it I would rather a solution that 'tied' into this especially as the combi boiler is fairly new. The make model and even cost of the stove is something I'd consider nearer the time was just interested in stoves that could be linked into pressurised systems and the positives / negatives

 

 

I actually do not think it is a bad a danger as HETAS make out but they had the ear of government when the regs were updated. Most solid fuel boilers were traditionally coal/coke and the energy density and flame temperatures much higher than wood so the capacity to vaporise more water.

 

Another way of doing this would be to have a separate vented system running through the wood burner and a plate heat exchanger into the pressurised system, with its pump triggered by a thermostat on the boiler side.