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Last Post by Mars 3 years ago

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Mars

(@editor)

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Joined: 5 years ago

Posts: 4239

Topic starter 22/08/2021 9:39 pm

We are excited to announce that Renewable Heating Hub will be launching a YouTube channel in September. To kick off the launch we are going to have an interview series where we will speak to industry leaders and high-profile experts. We have already lined up and confirmed our first 10 guests who are some of the industry’s most renowned and respected professionals and installers.

Given the recent media attention, the purpose of the channel will be to provide homeowners and consumers with an objective source of information and an opportunity to address questions and concerns that are being widely discussed at the moment. We will also be discussing the future of renewable heating in homes and getting the experts to share their tips and insights with us.

We want our audience to be involved as much as possible and for this to be an opportunity for us to put forward your questions to the experts. If you have any burning questions, concerns or worries about renewable heating please send them to us now so that we can try to include as many of them as possible in our interviews: @renewableheatinghub.co.uk">editor@renewableheatinghub.co.uk

Our first interview will be posted in September, and the date will be confirmed soon.

If you don’t want to miss any of the episodes, please head over to our YouTube channel now and subscribe. Your support would be massively appreciated.

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Mike Patrick

(@mike-patrick)

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25/08/2021 11:44 am

This will be interesting.

If government rhetoric on the number of heat pump installations is to be met then it's mostly about retrofits rather than original installations. I think it would be really helpful for those contemplating a retro-fit to learn what the realistic performance expectations (and potential pitfalls) are of connecting a heat pump up to existing radiators, for example. Those of us with (bitter?) experience even of original installations know that performance in use can be very different from theoretical maxima under controlled test conditions. A bit like car fuel economy - WLTP figures are achievable but not in the real world if you drive with your pedal to the metal.

Mike

Grant Aerona HPID10 10kWh ASHP

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Mars

(@editor)

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Topic starter 25/08/2021 4:04 pm

@mike-patrick, thank you. Some great and valuable points. I can think of two guests we are going to pose this question to.

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Derek M

(@derek-m)

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25/08/2021 4:57 pm

Hi Mike,

You analogy of car fuel consumption is perfectly correct in relation to ASHP. A correctly specified, installed and optimised ASHP system will perform much better than one that has not had the benefit of personnel who fully understand the problems and how to resolve them. An ASHP needs to modify it's operation to maximise its efficiency under changing operating conditions. Just like driving a car more economically.

The inherent weakness with an ASHP based heating system is that the primary energy source is not consistent. An ASHP extracts energy from the outside air, which of course the temperature of which keeps changing. This is similar to the calorific value of the fuel to a gas or oil boiler reducing with falling outside air temperature, so to output the same amount of heat energy it would be necessary to burn more fuel. This in turn occurs as the heat demand increases with lower outside air temperature, so you end up with a lose - lose situation.

I am in the process of documenting the results of the analysis that I have been performing on detailed manufacturers operating data, I hope to post the results in the near future.

This post was modified 4 years ago 2 times by Derek M

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Derek M

(@derek-m)

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27/08/2021 11:22 am

Hi Mars,

Can you ask whoever you think suitable what, if anything, is being done to improve the efficiency of ASHP based heating systems when operating at ambient air temperatures below +5C.

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Mars

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Topic starter 30/08/2021 8:49 pm

@derek-m, will definitely ask. We have our first interview on Wednesday and a packed schedule of interesting guests throughout September. I think it's going to be super interesting.

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Mars

(@editor)

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Topic starter 01/09/2021 8:51 pm

Our first video has been recorded and we’ll start the edit tomorrow. A big thank you to Bob Beattie (@bobbt9866) for being our first guest and for sharing his insights and answering our questions.

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Mars

(@editor)

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Topic starter 09/09/2021 9:06 pm

Our interviews have been going incredibly well. We have finished interviewing our first three guests who have provided some incredibly useful information, and we are hoping to post our first interview with Jan Rosenow on Monday, with interviews from Graham Hendra and Bob Beattie following on respective Mondays.

If you haven't done so already, please head over to our YouTube and subscribe so that you don't miss the interviews: https://www.youtube.com/channel/UCik3JUx29XhSgEWKv7MUv8w?sub_confirmation=1

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Mars

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Topic starter 13/09/2021 9:03 am

We're super excited because our first interview with Dr. Jan Rosenow is now live.

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Derek M

(@derek-m)

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13/09/2021 10:32 am

@editor Hi Mars,

An excellent video, though I'm afraid it did not fill me with confidence for the future. Virtually all the areas discussed were ones that we have explored on the forum for quite a number of months.

As was pointed out on several occasions during the interview, at the moment there is no real incentive for homeowners to spend £10k or more for a technology that will be more expensive to run.

I still feel that more effort should be made to encourage energy efficiency, which would probably be more cost effective, than pushing ASHP's at the moment.

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Mars

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Topic starter 15/09/2021 7:11 am

@derek-m, I agree. Energy efficiency is key and more has to be made of insulation.

It’s difficult to see how dependence on fossil fuels will be severed in a significant manner.

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Mars

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Topic starter 20/09/2021 6:20 am

Our interview with Graham Hendra is out and he makes some bold predictions about the future of renewables and heat pumps, and shares some really interesting insights about the industry.

It’s a fun, candid and entertaining interview. Sit back, relax and enjoy.