Feb 19th 2009
Temperatures have improved this week. 7 degrees C today.
Sun was shining. 9am and the bathroom seemed to be full of warm fresh air.
We have gas fired central heating. Gas is currently 7p per KWh of energy.
If the Solarventi solar panel produces 500w heat energy per hour, that's potentially 3.5p per hour saved.
But more than that, the lower humidity might reduce dust mite activity, mould in the bathroom and apparently water moisture is expensive to heat, so a less humid house is cheaper to heat. SolarVenti UK link
