Fri, 01 May 2026 23:58:33 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=894&Focus=9752#Comment_9752 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=894&Focus=9752#Comment_9752 Thu, 22 Nov 2007 15:03:54 +0000 martinlta
I have installed and tested a low cost woodstove adapted to make it clean burn and added a carefully positioned back boiler. The back boiler feeds by gravity into a thermal store from which mains pressure hot water is generated via a plate heat exchanger whenever the store is above 50C. If below this hot water is heated by my gas combi boiler as per usual by switching solenoid valves. I have now added a second plate heat exchanger to feed heat into the gas central heating circuit which is enough for three rads. My gas use is now down by 80% as the wood is free! and I do not require heating in kitchen were the stove is and in the room next door. I reckon the cost of the whole install was about £600 using as much eBay parts as possible and pluming it in my self. I have an option of solar input as the tank has a standard coil in the lower half. Just waiting for the price of evacuated solar heating tubes to fall before completing the system]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=894&Focus=9808#Comment_9808 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=894&Focus=9808#Comment_9808 Fri, 23 Nov 2007 15:07:34 +0000 Mike (Up North)
Well done - sounds great

Mike up North]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=894&Focus=9823#Comment_9823 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=894&Focus=9823#Comment_9823 Sat, 24 Nov 2007 10:21:27 +0000 adrian hollister
Thanks.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=894&Focus=9876#Comment_9876 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=894&Focus=9876#Comment_9876 Mon, 26 Nov 2007 11:22:05 +0000 martinlta
My thermal store was a second hand 166 litre indirect hot water cylinder fully insulated with a coil in the lower third( awaiting the solar connection). I added connections for the two plate heat exchangers. This takes about 2 hrs to heat up to 55-60C via the stove from a start temp of 15-20C. However we tend to have the stove on for 8 hrs a day min in the winter so it normally starts at 40-45C and takes about 30 mins to get to 55-60C. Once at 50C+ the hotwater is instant and is normally ok for 2 power showers of about 5 min each.]]>