Thanks for the responses. I think going to look at some displays is a great idea. I've seen some pics of display homes with what looks like tiled…

Thanks for this suggestion. The calculator was easy to use and I estimate 16% loss of effectiveness annually. This will probably be sufficient for our requirements for most…

I have a lowset house with a covered outdoor area at the rear. The existing pavers need replacing and it has been suggested that we go for a wooden…

After being told by the salesman that we had sufficient room on our northerly facing roof to install a solar hot water system, when the installers arrived they disagreed and…