@william1066 after installing our first Mixergy a few years back, I was unimpressed.

Since then we have installed/converted older invented cylinders to plate loaded with heat pumps. Including my own.

@timatheronwood sounds undersized, or short of refrigerant. Or could be poor design. Most of the Daikin engineers don't really know about heating design. I should know I used to work for Daikin.

Hey all, a big thank you to all you kind forum-ers who offered advice during choosing/pre-install of our baby 8k Midea last year.

It has been running for a full year now.

HW set at 45deg (65 weekly immersion boost) and weather comp at 41-25.

It handled the -7C temps with aplomb and, most importantly, helped contribute to a satisfying 70% reduction in our energy use. We are an electric-only house (econ10) & used 5600kW total.

Recently had small solar install, that is helping too (maybe 15-20%?). No battery tho.

Quick Q to people who have solar - is there any reason you wouldn't have a smart meter? We don't have one yet &, as we don't have batteries, would probably be interested in getting a little back from the SEG.

Cheers!

Posted by: @ianjrw

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Hey all, a big thank you to all you kind forum-ers who offered advice during choosing/pre-install of our baby 8k Midea last year.

It has been running for a full year now.

HW set at 45deg (65 weekly immersion boost) and weather comp at 41-25.

It handled the -7C temps with aplomb and, most importantly, helped contribute to a satisfying 70% reduction in our energy use. We are an electric-only house (econ10) & used 5600kW total.

Recently had small solar install, that is helping too (maybe 15-20%?). No battery tho.

Quick Q to people who have solar - is there any reason you wouldn't have a smart meter? We don't have one yet &, as we don't have batteries, would probably be interested in getting a little back from the SEG.

Cheers!

Do you have a power diverter to help produce hot water from your solar PV?

@derek-m Hey Derek! Hope well. No 'fraid not diverter. I currently ensure water is only heated either when (i) sun is out or (ii) econ10 cheap rate has kicked in or, happy days, combo of both. Unlikely to modify system in near future cos finance.

Just wondering if anyone had fear of smart meters re some unscrupulous energy supplier control I'd not thought of or other tech issue?

Posted by: @ianjrw

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@derek-m Hey Derek! Hope well. No 'fraid not diverter. I currently ensure water is only heated either when (i) sun is out or (ii) econ10 cheap rate has kicked in or, happy days, combo of both. Unlikely to modify system in near future cos finance.

Just wondering if anyone had fear of smart meters re some unscrupulous energy supplier control I'd not thought of or other tech issue?

I don't think that you need to fear Smart Meters. We have had one for quite some time and it makes monitoring your energy usage much easier. Your energy provider cannot switch any of your appliances on or off.

If my understanding is correct, the system does have the capability of 'load shedding' if the grid is in dire straights, by switching off suitable appliances within your home that possess this capability. I have seen various heat pump manuals that refer to this capability, but it has the be enabled within the heat pump controller for it to actually be used.

I suppose in the future, we could have the situation where consumers are rewarded for allowing the grid control to switch off their heat pump, fridge and/or freezer, and EV charger, during peak demand periods. Obviously, this would need to be done on a voluntary basis and to cause very limited affect if any to the consumer.

I suppose people need to decide which they prefer, having their freezer switched off for a short period of time on certain days, which they probably won't even notice, or experiencing a complete power cut, which I suspect that they will notice. 🙄 

@derek-m ta for insight Derek. That info plus grumpiness that profit dudes benefit from my excess creation plus tiny bit of SEG point me to getting Ovo to install. Cheers.

I am, now, in my tenth month in an attempt to get a Working , efficient Heat Pump.

I arranged for three quotes for the installation of the heat pump.

All three quotes specified that an 8kw Heat pump was required, although from three different manufacturers.

On selecting my "installer" I was told that 8W Heat pump were unavailable, and that 6kw "would do".

The "installer" then said that the "Warmflow" 6kw Heat pump was also unavailable and that a 5 KW SAMSUNG, that the installer had just received  "would do"

The installation started on 1st July 2022 was missing five major components including a Flow sensor,Thermostat,  Expansion vessel and Two  PRV(s).

The Heat  Pump was , eventually started on 1 August 2022 after numerous "mistakes " in fitting the Flow sensor to the wrong pipe and or the wrong position on the pipe.

I have protested to the MCS,NIC RECC,EST Scotland  ,  Consumer complaints Scotland , Citizens advice Scotland and the Scottish Government..

After Ten months when my installed was "struck OFF twice by the NIC " I have been told that "nothing can be done" and that I must seek legal advice

Only  the intervention of the Scottish Government has saved me from the large bills that have resulted from this fiasco.

My SAMSUNG HEAT PUMP continues to generate large electricity bills caused by the large energy consumption caused by the low Flow temperatures .

yours

ian

@iantelescope 

That's some 'say hello and introduce yourself' post!

It's also a travesty how the industry has treated you.  I wish you luck.

@iantelescope I had a remarkably similar experience (though I am happy with the heat pump itself).  I ended up taking my installer to court but Travis Perkins bankrupted them through the courts at the same time so no money received.  There seems to be some right cowboys out with toothless tigers watching overt them.

I’m unable to rate my heat pump as the installer has failed to turn up today, as contracted. I had no advance notice and, after ringing got this email ‘We are running behind on our install programme, you should have been informed of this last week…’. There is little more except ‘we will get back to you’. 

The boiler upgrade grant expires next Tuesday so I’ve told them they are in breach of contract and to refund all monies paid. The story will no doubt continue…

@davesoa, the lack of reliability amongst installers can be extremely frustrating. How long have you waited for the installation, and who's the installer?