Mon, 25 May 2026 09:20:41 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1128#Comment_1128 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1128#Comment_1128 Wed, 14 Mar 2007 21:25:29 +0000 William I have opted for a condensing gas boiler, with a seperate unvented cylinder to run my hot water and underfloor heating. I want to add solar water heating in the future.
I am told I need a twin coil tank ( one coil for future solar) and that the solar connection will be made to the top coil. Is this right?
I was on a manufacturer's web site which shows the solar coil as being the bottom of the two coils.
Which is correct?]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1132#Comment_1132 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1132#Comment_1132 Wed, 14 Mar 2007 21:35:09 +0000 nigel
The boiler heats the top half of the cylinder and the solar heats the whole cylinder.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1206#Comment_1206 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1206#Comment_1206 Fri, 16 Mar 2007 08:39:33 +0000 Solar bore
However why not have a third coil put in so that if you went for Ground source heat pump or wood burning boiler you would not have to start again I made that mistake when we had or solar panel fitted.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1228#Comment_1228 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1228#Comment_1228 Fri, 16 Mar 2007 21:39:38 +0000 Guest
I am building a new house and wanted a cylinder with three coils in it for solar wood burning boiler and condensing boiler. I've been told this is not possible with a pressurized system is there any way round this.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1245#Comment_1245 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1245#Comment_1245 Sun, 18 Mar 2007 14:36:31 +0000 Solar bore
Other than to ask why you are installing a pressurized system?

Is the boiler a combi -type?

If so. I believe they are far more expensive to provide a pre-heater vessel for

could you not fit a indirect cylinder.

I would ask a manufacturer of cylinders mine was made by McDonalds Engineers on 01592 611123 it was ordered by my Solar panel man,

lookforward to your reply.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1246#Comment_1246 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1246#Comment_1246 Sun, 18 Mar 2007 16:24:30 +0000 Guest
You can't have an unvented cylinder with an uncontrollable heat source such as a wood burning stove for safety reasons. Why not? Because there is a risk of raising the stored water above 100 degrees, which means the next time a hot tap is opened you get superheated steam, boiling water and serious scalds.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1258#Comment_1258 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1258#Comment_1258 Sun, 18 Mar 2007 21:24:19 +0000 Spike https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1282#Comment_1282 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1282#Comment_1282 Mon, 19 Mar 2007 19:41:50 +0000 Guest
To answer solar bore's question about the pressurized system I was told by a number of companies who where quoting me for the heating system that I would be mad not to install it, as this is not my field of work I took what they said to be right. I received plans on how to install the uncontrollable heat source (wood stove) and the plumper said it was too complicated and would be dangerous in case of power failure, therefore not allowing the excess heat to be diverted.

Hope this makes sense..
Thanks]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1288#Comment_1288 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1288#Comment_1288 Mon, 19 Mar 2007 22:07:28 +0000 GBP-Keith https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1361#Comment_1361 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1361#Comment_1361 Thu, 22 Mar 2007 16:14:13 +0000 Guest http://navitron.org.uk/forum/index.php?board=6.0

.cheers..pete]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1520#Comment_1520 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=104&Focus=1520#Comment_1520 Mon, 26 Mar 2007 19:53:09 +0100 sune