@misterb Yes please! That would be good. Regards, Toodles.

Posted by: @misterb

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@derek-m 

your first comment was valid, it was the second comment where you spoke about the need to be factually correct i took issue to as i dont see where i was factually incorrect about my own personal circumstances - i think i was also very realistic about my options. i hope you dont remove yourself from offering help/advice/information as we all have something to offer, though none of us are always right all of the time .......

your point re people wanting to heat their homes for next to nothing is the reality but dont forget that any reduction in power use actually does help the environment, though removing existing well working heating systems isnt.

can we get back to the original posters quest to discuss energy use ??

 

I'm sorry that I did not word my reply very well. My concern was in relation to your statement about each A2A unit using 1kWh of electrical energy, with the estimated 6 units giving a daily total of 144kWh, producing an output of 432kWh of thermal energy. If some new forum member did the quick maths in the same manner, they would certainly be put off any form of heating using heat pumps, before realising that it would need to be a mansion that would require that amount of heating.

Whenever I post information I try to ensure that it is as factual as possible, so that people can arrive at a more balanced opinion.

I appreciate that you are happy with your storage radiators and would not try to convince you to change your system.

Posted by: @derek-m

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Posted by: @misterb

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@derek-m 

your first comment was valid, it was the second comment where you spoke about the need to be factually correct i took issue to as i dont see where i was factually incorrect about my own personal circumstances - i think i was also very realistic about my options. i hope you dont remove yourself from offering help/advice/information as we all have something to offer, though none of us are always right all of the time .......

your point re people wanting to heat their homes for next to nothing is the reality but dont forget that any reduction in power use actually does help the environment, though removing existing well working heating systems isnt.

can we get back to the original posters quest to discuss energy use ??

 

I'm sorry that I did not word my reply very well. My concern was in relation to your statement about each A2A unit using 1kWh of electrical energy, with the estimated 6 units giving a daily total of 144kWh, producing an output of 432kWh of thermal energy. If some new forum member did the quick maths in the same manner, they would certainly be put off any form of heating using heat pumps, before realising that it would need to be a mansion that would require that amount of heating.

Whenever I post information I try to ensure that it is as factual as possible, so that people can arrive at a more balanced opinion.

I appreciate that you are happy with your storage radiators and would not try to convince you to change your system.

 

Just to add, for the avoidance of doubt, i agree with you about the effectiveness of A2A (Air to Air, sometimes referred to as inverters as they can deliver heating and cooling) 'heat pumps' - our 2.5kw works like a dream, its unfortunate that when we get very cold weather it goes through what i assume is a 'defrost' cycle, usually two of three times a day, which means we lose heat for around 10 minutes each time. As the heat is not stored in radiators AND the A2A is sited in a conservatory/kitchen of approx 24sqm for the conservatory and 14sqm of kitchen, the room can lose heat very quickly, which is why we have a diesel heater running in the background. We virtually live in the conservatory area all year round and being able to access cheaper energy stored in a home battery makes it a very cost effective option in my opinion, especially if other options are limited. 

If i had been 'more informed' when planning the conservatory build and kitchen knock through, instead of adding the A2A later, i would have potentially considered a larger model, but layout and design makes that no longer an option. i wouldnt want a wall mounted one purely on preference as i think it would make the install look 'commercial' in our particular circumstances, whereas the floor mounted one looks similar to a storage heater, which we have everywhere else. 

if the A2A were in a 'standard' room of standard construction, i'm sure the heat loss during 'defrost' wouldnt be as noticeable and it would be a lot more efficient, as i think ours is not just undersized for the area, but there wouldnt be the same amount of heat loss through the glazing and roof that we have.

Like you, i would have no hesitation in recommending an A2A installation, if starting from scratch with no existing heating syatem or in a new build extension/property, then they should certainly be considered an option. i also think they are ideally suited to conservatories as they can be switched to provide air conditioning in the summer months, potentially allowing greater use of the conservatory, with solar PV AND home battery, our experience has been that the air con can be used with virtually no running costs and no use of fossil fuels, which isnt a bad thing, or is it?

For those who dont understand what sort of unit we are discussing, in particular the floor mounted unit, here is a link to one manufacturer, please not there are other manufacturers, i am not promoting one above the other

https://les.mitsubishielectric.co.uk/products/air-conditioning/m-series/floor-mounted-systems