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donnk

Gas is banned

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On 02/01/2020 at 14:22, Woodworks said:

Expensive to instal well yes relatively but ours wasn't anything like the figures you hear banded around these days. When we first had our GSHP I worked out in the summer we were using 2.38 kWh a day for hot water. At 15P per kWh thats just 35p a day 

Heat Pumps cant be beaten really they have a CoP of nearly 5, that means for every £1 of electric you put in  you get £5 of heat out.

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11 hours ago, openspaceman said:

So @aesmiththe plant you saw was an electrolysis plant?

That's right.  Couple more points I remember, electrolysis produces hydrogen and oxygen from water, but at the plant the oxygen was simply discharged to the atmosphere, wasted.  Also, even without any form of fuel duty and after all the government subsidy the actual fuel cost per mile is significantly higher than petrol or Diesel.  And the car costs three times as much in the first place.

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1 hour ago, donnk said:

Heat Pumps cant be beaten really they have a CoP of nearly 5, that means for every £1 of electric you put in  you get £5 of heat out.

A COP of 5 would be very good but I guess newer models with scroll compressors might do that well. COP is very dependant on the temperature lift you require. A badly insulated house with rads might require high temps so poor COP and properties like this are where the horror stories come from. This page explains it far better than I canCOP-furmula.png

HEATPUMPS.CO.UK

The  energy efficiency of a boiler is usually quoted in percentage terms.  e.g. If a boiler is said to be 90% efficienct, then 90% of...

 

Edited by Woodworks

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