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Doubts about EVs
McCabe-Thiele (Ted):
--- Quote from: sye on April 11, 2023, 05:55:24 PM ---That's partially true of air source heat pumps but not ground source.
--- End quote ---
True but most housing in England do not have a garden big enough for ground source plus you might find your garden is still frozen in spring.
Multiman:
I have a cousin and a very good friend.
Cousin in Scotland in old terraced house, friend in new built passive house.
Both have air source heat pumps
Both survived winter and were able to have showers with water provided by the heat pump.
The friend in the passive house has energy bills of about 59p per day in the winter.
Petrol head forum puts boot into EV and alt technology shocker! I’m
Bryanj:
Im a luddite, the desktop runs Windows XP and the laptop 7 as for this damned dumfone, nuff said.
We run a hybrid but with family at opposite ends of the country that will be as good as i get!
Oddjob:
Yeah the one I got details on was ground source, my front garden is fairly large, my back garden is reasonably sized, faces South as well so doesn't get that frozen as it gets sun on it whenever it shines.
K2-K6:
--- Quote from: Multiman on April 11, 2023, 06:04:44 PM ---I have a cousin and a very good friend.
Cousin in Scotland in old terraced house, friend in new built passive house.
Both have air source heat pumps
Both survived winter and were able to have showers with water provided by the heat pump.
The friend in the passive house has energy bills of about 59p per day in the winter.
Petrol head forum puts boot into EV and alt technology shocker! I’m
--- End quote ---
I can see benefits in different system as comparison, but this one is about insulation, solely.
We've certainly a truly shocking record in domestic housing for insulation in the UK, that'll always compromise energy usage whatever the scource. And certainly not reflecting technical performance new or old type heating method.
We stayed, in winter, with a French family in an old farm building suitably renovated with very significant insulation, plus old wooden shutters to close after dark, leaving a huge still air void in the gap.
Exemplary energy performance, owner was telling me about it as he consulted in this field. Was heated by a ground scource system but in a vertical drilling down in the hundreds of meters, located on granite which he said was particularly suitable.
A very impressive performance, but no real technology used, just a common sense approach.
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