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Heat your home with passive solar energy

Posted by Tim Pullen on 26 February 2013 at 11:01 am

Heat your home with passive solar energy

It is quite possible to benefit from solar energy without the need for external mechanical means such as solar panels. It is closely related to architecture and was well understood in the ancient world. The Chinese, Greeks, Romans and North Africans have been building houses that use solar energy…

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Heat recovery ventilation - is it a retrofit option?

Posted by Tim Pullen on 20 February 2012 at 9:21 am

Heat recovery ventilation - is it a retrofit option?

Q: Is heat recovery something that can be retrofitted?  A: There are two things we need to know about heat recovery ventilation: 1. It does not work in a draughty house. In fact it needs a high level of air tightness to work at all.  2. It is big, bulky kit. Duct…

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How can we stop heat loss from our bay window?

Posted by Tim Pullen on 13 January 2012 at 9:31 am

How can we stop heat loss from our bay window?

Q: Hi we have a semi-detached 1950s bay fronted house and the only part not insulated is the upstairs bay (which sounds like it's made of wattle and daub!) and the flat roof above the bay. The flat roof part is perhaps 3 inches deep only, and covered with lead. Despite the radiator being in the bay,…

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Does cavity wall insulation cause damp & condensation?

Posted by Tim Pullen on 19 December 2011 at 3:58 pm

Does cavity wall insulation cause damp & condensation?

Q: I am considering having cavity wall insulation but have read that it can cause damp and condensation. Would be interested in your views. A: Cavity wall insulation is a great idea if you have a clean cavity. It is true that filling the cavity with insulation can cause damp and this is …

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How to bring sunlight into a dark room

Posted by Tim Pullen on 28 October 2011 at 8:51 am

How to bring sunlight into a dark room

Q: Are solar tubes a good idea? A: Solar tubes – also known as sun pipes, sun tunnels or light pipes – could also be called remote windows (but they are not). They are a way of bringing daylight to rooms or spaces with no natural lighting. They consist of a light collector – essential…

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