Eco Retrofit

Better insulation means more warmth but also more mould and condensation. Sue Wheat's eco retrofit continues with a look at a super-efficient ventilation system that recycles heat while stamping out damp

Research over, it's crunch time in Sue's house, as materials are delivered, builders are educated in new eco techniques and wall insulation is fitted

Sue immerses herself in the addictive world of ecogadgetry, including water-powered alarm clocks and a crash course in cooking with blankets...

Insulating the floor can be fiddly, messy and costly. Luckily, there are simple, cheap options too as Sue discovers