- Location
- Limousin/Charentes toad land
Is anyone using one for their house heating? The first downside I see is, it seems essential to utilise a large capacity of water storage.
Wood gasification boiler
- Thread starter czechmate
- Start date
- Location
- DD9.
Looking at it, still waiting on people coming back to us. Agree it works on heating a large storage vessel a couple of times a week and drawing heating and hot water from it.
will_mck
Member
I've a 50kw atmos wood boiler heating a new well insulated (which is key) 2500 square foot house. In Summer time i only need hot tap water so the boiler gets fired up once a week but in winter time it'll be fired up 3 times per week to provide heat for the radiators. Its essential you have a large buffer tank to store the heat and utilise the boiler. The buffer tank I have holds 3000 litres. To be honest it's good in summer but it can be a nuisance in winter as unless you have the time to fire up and refill the boiler. 15mins gets the boiler up and running, it'll burn for two to three hours before needing filled with wood again, I usually need to refill two or three times in total to get the whole buffer tank heated up to 90°c. The stats in the house call in heat from this tank from there on. It's ok as long as you have time in the evenings in winter to refill the boiler when it's going. I'd still have one again as it gets rid of the timber we gather up on the farm and it's free heating
Last edited:
- Location
- Limousin/Charentes toad land
sounds more complicated than a normal wood burning boiler which is my concern. Do you know how much more efficient they are? For example, if they make double the heat then it’s worth it, if it’s just 10% better…
- Location
- Limousin/Charentes toad land
Am I getting this correct… so normal burning wood, I have had a boiler in the past and still have just wood burners, you might have them going non stop for weeks on end, am I right in thinking with these, you light them, run them for a few hours, then they go out and you light them again next time you need heat ?
ISCO
Member
- Location
- North East
That is the theory however in practice not always so simple. We have an 80kw with 4000 litre tank heating 2 old stone farmhouses with loft insulation and double glazed. In winter it is burning 24/7 but does keep us warm.
- Location
- Limousin/Charentes toad land
will_mck
Member
My gasification boiler is supposed to be a out 85% burning efficient...no idea really what that means in reality but in the space of about 6months you'll only have one full wheel Barrow of ash. The whole system sits in a shed beside the house. The buffer tank will lower to a out 40°c before it stops throwing heat from the radiators, then I'd light then burner when I come home from work, this take about 15mins, it'll then burn for about two hours on soft woods(it'll burn for about 3hrs on hard woods)before its burnt out, I'll go out to the shed and fill it up again,it'll still be burning but just needs topped up like a normal wood burning stove, this will take a minute, that'll keep it going for other two hours, I'll go out a third time before bed and fill it again. This will heat 3000 litres from the top of the tank to the bottom of the buffer tank. In winter the buffer tank will give us enough hot water for two or three days depending on how much hot water you are drawing from it. Now in the summer time I only charge up the buffer tank once a week with the log boiler. You'd need to be very careful about installing one as there's plenty of salesmen who'll sell you a system but you'd want to be buying something which actually works for you
We have a 50kw eta, it heats a 4 bed very old farmhouse all winter above 20 degrees. It takes a garden barrow of logs everyday in winter and twice a week in the summer. We have our own wood ( mainly) so cheap to run with the rhi. No good without it as kit too expensive. Down side is eta parts are eye-watering expensive as is the servicing which must be done for the rhi.