one for the technically minded of you.

[michael c]

hi guys, i havent done any training in the field of solar panels other than a 1 day renewables energy training with my employer. However there has been 1 thing bugging me about the hot water variant of solar panels. I have been twnld some of these panels work on a temperature basis. If this is true why then can a system not be developed where these are placed within the confines of the home. Would this not then mean that once the home is heated to a greater temperature than that required to operate these panels that the system would then run itself?

 

[gasmanrob]

There is a system like that it's air recirculation it draws heat from the rooms and soil stacks then uses it to produce heat elsewhere (I think that was the gist I fell asleep when the fitter started to go on about the filtration system)

 

[michael c]

ah ok thanks rob so is that the ashp or something different

 

[gasmanrob]

Something different, it was going in in some ha places that were being re done. Made and fitted by vent axia

 

[michael c]

thanks rob will have to have a look

 

[Nostrum]

Mechanical heat recovery ventilation ?

 

[Reg Man]

Heat recovery systems are a great idea. Johnson & starley had one which claimed 98% efficiency. Heat exchanger ventilation box in the roof space, which pre-heats fresh air being drawn in by heated room air being extracted. Nice clean warm fresh air very little dust. Price not for the faint hearted

 

[Kev the gas]

They are a great idea, however when installed in new build properties by installers on a very tight budget standards drop so then does the efficiency of the systems.

A local house building company top end of the market, used to fit them as standard 15 years ago, but haven't done so for last 8 or so years.

When I ask the owners if they use the system they normally say what ! We normally have that fused spur turned off as it does nothing, sad but true.

I presume the systems parts are now obsolete/ parts seized even ducting too dirty.