D D DIYnotBot 6 Feb 2013 This image is referenced in the forum thread 'Planning heating/Plumbing from scratch..'
D D DIYnotBot 22 Feb 2013 This image is referenced in the forum thread 'Would like a thermal store but advised otherwise???'
D D DIYnotBot 11 Sep 2013 This image is referenced in the forum thread 'Concrete deck flat roof refurb'
D D DIYnotBot 7 Feb 2014 This image is referenced in the forum thread 'mixing cavity wall and external insulation?'