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Air Sourced Heat Pump.

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A person today that I was talking to, that has had a new build home which was required by building regs. to have an air sourced heat pump for heating and hot water, complained that the system was slow to heat or cool as required. He said that he had to have underfloor heating installed. It was slow to warm the rooms on cold days. He recently had the system set to cool the rooms on the very hot recent days. But this morning was cooler and he required heating. Is this normal?


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    davezawadi (David Stone): 
    You need to study the proof it is manmade …

    Not easy to obtain, which is the point that I made earlier (in this or another thread) that the best sort of experiment, a randomised controlled trial, may be impossible.

    Probably the best that can be done is to say that there has been an association between the climate (in reality, temperature) and atmospheric “greenhouse gas” levels. Some of the greenhouse gases have been man-made, e.g. chlorofluorocarbons (CFCs) and the production of CO2 is related to the number of people (see above); but on the whole, although raised CO2 levels seem to lead to higher temperatures, it is equally arguable that an increase in temperature raises the CO2 levels.

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    davezawadi (David Stone): 
    You need to study the proof it is manmade …

    Not easy to obtain, which is the point that I made earlier (in this or another thread) that the best sort of experiment, a randomised controlled trial, may be impossible.

    Probably the best that can be done is to say that there has been an association between the climate (in reality, temperature) and atmospheric “greenhouse gas” levels. Some of the greenhouse gases have been man-made, e.g. chlorofluorocarbons (CFCs) and the production of CO2 is related to the number of people (see above); but on the whole, although raised CO2 levels seem to lead to higher temperatures, it is equally arguable that an increase in temperature raises the CO2 levels.

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