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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?


Z.
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    https://www.tradeskills4u.co.uk/courses/city-guilds-239901-foundation


    Because I was funded by the European Social Fund to do the PV installation and maintenance course I had to do the full set of courses to get the full certificate, including the foundation course. So I spent time being shown the other renewal energy systems as well as the PV systems and discussing the pros and cons of each, before taking the the exam and gaining the award.


    So having been trained to give advice on renewal energy systems including air source heat pumps, I would never advise anyone to retrofit a heat pump into an existing home without upgrading the wet system including pipework and radiators, as well as upgrading the insulation, doors and windows as required.


    Neither would I recommend installing a heat pump in a building such as a church which will be used intermittently without serious consideration of how the system will function.


    I would not consider installing one in my home and consider some of the advertising for air source heat pumps to be on the point of being fraudulent by suggesting that they can be a simple swap for a gas boiler.


    If you start the design of the heating system  with the thought that they are only capable of providing a low level of heat you will have a better chance of ending up when you want to be.


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    I hope you will join me, Andy, we can point out that this utopian pie in the sky is not possible for nearly all the population and therefore they should admit this, and throw out all the legislation which assumes it is possible! Electric boilers and cars will never work, the plan is not economically possible, cannot be achieved unless we corner the world in materials, get a few tens of millions of new construction workers and find a "Magic Money Tree". From E&T I gather the IET think that it can, and will not countenance discussion on the point, have you seen a single letter pointing out the problems? Mine obviously went into file 13!
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    Nothing will ever work, if you ask someone who desperately doesn't want to do it.
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    NSparkingchip:

    Back in the days when we used to be allowed to go out I used to go to IET local meetings, during one group activity it was pointed out to me that:


    ”Electricity is not a fuel, it’s a means of transmission”


    Likewise the water in a heating system is a means of transmission from the source of the heat to the emitter.


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    Simon Barker:

    Nothing will ever work, if you ask someone who desperately doesn't want to do it.


    Well you can go ahead and waste time effort and money seeking the wrong thing. We need to focus on the facts not the political narrative. The fact is the the climate is changing, planet is warming and nothing can stop that as its a natural process which is not proven to be man made co2. Climate alarmist will tell you otherwise.


  • Former Community Member
    0 Former Community Member
    Jon Steward:

    Well you can go ahead and waste time effort and money seeking the wrong thing. We need to focus on the facts not the political narrative. The fact is the the climate is changing, planet is warming and nothing can stop that as its a natural process which is not proven to be man made co2. Climate alarmist will tell you otherwise.




    Out of interest what do you consider not to be proven?



    • That atmospheric CO2 levels have increased over time

    • That the CO2 increase is due to human activity

    • That atmospheric CO2 levels impact global climate

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    Good questions for starters.

    Google Dr. Roy Spencer a nasa scientist and watch his explanations. Rather than my waffling on.
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    I'll answer those but the reference given is good:
    • That atmospheric CO2 levels have increased over time


    It has been much higher and much lower over history. It was about 6000 ppm in the Carboniferous period, it is about 420 ppm now,

    • That the CO2 increase is due to human activity


    It is indicated by the reference I gave earlier the CO2 level is not due to man. The level measured in Muna Loa, the global reference, has increased at exactly the same rate during Covid, although fossil fuel use has dropped about 25% for the period, this doesn't show AT ALL.

    • That atmospheric CO2 levels impact global climate


    Really, at 420 ppm any effect is tiny? The Earth didn't overheat when it was 6000 ppm, and all the coal seams were laid down because it makes vegetation grow extremely well. All the data is against this!

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    Human activity ...


    It isn't just burning fossil fuels, or even wood, but also breathing. A normal breath is about 500 ml. About 4% of exhaled air is CO2 and we breathe about 14 times per minute. So that is 0.5 x 0.04 x 14 = 0.28 l/min or 150,000 l/year. That weighs about 300 kg. There are about 8 billion of us, so that is 2.4 trillion kg of CO2 per year.


    Then there are folk who chop down trees and so on, which reduces the world's capacity to "capture" the CO2. It seems that the more people there are, the more trees get felled.


    So IMHO, it's not just about green energy, it's about over-population.

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