Monday, July 17, 2006

I just learned that the SolarVenti unit I purchased was the first one installed in the uk and I thought it would be useful to build a diary of its issues and things i learn for others to share.

Why did i buy a SolarVenti? I have residual damp atmosphere issues in certain rooms in my house which is a Period building. (Note not a holiday home - this is in my house). What about a conventional dehumidifier? Well i have tried one of these but it was a pain in the backside emptying the 'bucket' when you find it has switched off and i once tripped over the flex and hurt myself. Anyway it then packed in and it was cheaper to buy another one than to get it fixed! The idea of using the sun's energy appeals to me but more importantly there are no cables and hoses and buckets and nothing to fail on a SolarVenti. The lack of an electricity bill is a big bonus that i can bank for the future years. My SolarVenti is installed on my grade 2 listed building dating back to the 1500's. The house does have a 'DPC' basically a piece of wire cut into the wall and connected to the electricity supply. This runs all the way around the building in a loop. That is the basis of a so called electro-osmotic DPC - but they just dont work properly. Hence the need for the SolarVenti.

Now the big question does the SolarVenti work? Well yes it undoubtedly does but it would be a bit simplistic to leave it at that.

The SolarVenti is installed on a wall of the former dairy room where in the days the house was part of a working farm and they made cheese in the room. This would have been a wet room as the floor is 12 inches lower than the rest of the house and the previous floor which i replaced was quarry tiles laid over sand. The walls of my house are 33 inches thick so it is a non trivial exercise to put a hole through the wall. This lead to some innovative thinking by the people at SolarVenti as I did not want to get in (even more) trouble with the planning people over altering a listed building. Anyway Dave at Solarventi kindly built a wooden frame and mounted the unit on that ducting the airflow in through one of the small window panes which was replaced by a drilled wooden panel. It soes not look as good as a conventional install would but nobody can see it so who cares.

Anyway the SolarVenti ( an SV7) works well and since installing it there has been a really fresh and pleasant atmosphere in that and the neighbouring rooms and I have left it running through the summer period. If there really is a heatwave i might have to wire up the switch that was provided to power it off but that has not been a problem so far.

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