@chandykris Also, it may be a little too late in the process now but, if they have designed room temperatures that may be some 2 or 3 degrees C higher than you require, it is possible they will be fitting radiators larger than you actually NEED in some rooms - or worse still, designing the system’s operating temperature somewhat higher than needs be and this may be of some import to you! I’ll admit, it is a good idea that someone or some organisation is there to offer helpful advice when a possible user lacks the knowledge to ensure that a heating system they propose to have will be able to maintain the comfort level they require - but when the potential user has engaged with the requirements and has stated their needs, the likes of MCS should respect this too! Regards, Toodles.
Toodles, he heats his home with cold draughts and cooks his food with magnets.
@toodles That's a good point. Thankfully, the flow temperature is 46 degrees, and WC will be set. Hopefully won't impede the efficiency.Also, we are reusing some of the slightly larger K11 radiators from downstairs for the bedrooms and not install new big K22s upstairs. So, they are not massively oversized. Glad I asked them to reuse the radiators, albeit for preventing perfectly good items going to landfill.
16 * 435 watts PV
6.6 kWh Growatt battery
1 EV - Mercedes EQB
6 kW Aira Heat Pump
Another follow-up from me, this time on the Aira app. I have sent my requests, which all pretty much focus on the Insights page. This is in the app where you can see how much energy the Aira system has consumed in kWh over a Day, Week, Month. My requests are:
@chandykris habitual rooms should be designed for a temperature of 21° and bedrooms 18° You can of course turn your thermostat up or down but once you have your ideal temperature set then don’t be tempted to touch the thermostat again
@bromide I think it is time the term ‘Thermostat’ was consigned to the plumber’s waste pile; modern system ought to be using intelligent controls to maintain desired comfort levels rather than very dumb, brutal on/off switches. These thermostats really don’t do us any service at all with Heat Pumps - they are outdated and should only ever be in circuit as a failsafe limiter should all other means of control fail! Outspokingly yours, Toodles.
Toodles, he heats his home with cold draughts and cooks his food with magnets.
@toodles I agree. I’m not against room temperature monitors but we shouldn’t be changing the target temperature. A friend of mine had a heat pump installed and was turning the thermostat up and down just like a gas boiler. Once I explained how HP’s work fortunately he left it alone and now has a constant temperature of 20° (which is their desired temperature)
@bromide Yes, that's the plan. Find the sweet spot and leave it as-is.
Hearing from you all, I wonder whether I could have pushed back on the 21 degrees temperature in the bedrooms. Especially, as heat flows up and currently with the gas boiler, by the time upstairs bedrooms zone turns on, the bedrooms are already at the required 18 degrees. But, with the heat pump there will just be one zone and it will be on always, so need to find the ideal nighttime cool down temperature to suit us. If not for us, at least for our dog. If it's too hot, she won't sleep properly and keep us awake too!
We will hopefully know in a couple of days when the system has been commissioned and is up and running.
16 * 435 watts PV
6.6 kWh Growatt battery
1 EV - Mercedes EQB
6 kW Aira Heat Pump
The higher design temp in the bedroom isn't necessarily bad eg spare bedroom used as an office or hobby room where maybe 18 would be not as comfortable.
Will you have TRVs on the bedroom rads to use as limiters? My master bedroom has a oversized rad and without either turning down the lock shield valve or using the trv as a limiter I'd overheat.
@gunboatdiplomat Yes, the lead installer did say that all the rooms would have TRVs. I have already installed two Tado thermostats and five Tado TRVs on.our gas central heating system. I think we will still keep them for monitoring temperatures and humidity, but not use them for zoning or for scheduling.
16 * 435 watts PV
6.6 kWh Growatt battery
1 EV - Mercedes EQB
6 kW Aira Heat Pump
A question for others who have had Aira installed. How long did it approximately take for your installations?
We are well into day four, and generally only one lead installer is here on site. Electrician turned up for a couple of days. The second plumber hasn't even been here once. Generally, videos of other installations I have seen on YT suggest a small army of installers turn up. In our case, the primary and return pipes aren't even in place. None of the radiators have been changed. Electricity wires aren't connected to the heat pump. The cylinder is just going in today. I wonder whether they would even get it finished and commission it tomorrow. And apparently this is not even a complex installation. No floorboards to lift, straight connection from the heat pump to the hydro box.
Don't get me wrong, the installers who have turned up are really good. But, it doesn't feel like they have put enough resources needed to get it done this week. For the past two nights, it has been very cold, and we have been surviving on the infrared panels I had installed last year in the open plan area, and a couple of oil filled radiators we had already. They didn't even offer any electric heaters temporarily. Thought it was by default offered by other companies such as Octopus. I am having to move a kind of hot oil filled radiator from lounge to the bedroom upstairs towards end of the day. Don't think we can go on like this over the weekend.
16 * 435 watts PV
6.6 kWh Growatt battery
1 EV - Mercedes EQB
6 kW Aira Heat Pump
As only installer is on site, if they need any material, he has to travel to their preferred supplier forty odd minutes away, to and from. That takes 1/3 of their day. Had they sent additional people on site, things should be far ahead of where we are and can expect this to be done by tomorrow. I wonder whether other customers here have faced similar issues with their Aira installation.
16 * 435 watts PV
6.6 kWh Growatt battery
1 EV - Mercedes EQB
6 kW Aira Heat Pump
@chandykris I had 2 plumbers full time for 4.5 days. They were both actually lead installers so really knew what they were doing. I had 5 rad changes which took them about half a day. Had electricians sporadically popping in and out but at most had 2 electricians for a day and a half. Didn’t really feel like an army to me but the two plumbers did a bucketload of work so I imagine with only 1 it will go a lot slower. I asked for fan heaters and they provided some but I was also slightly miffed they didn’t just offer them.
-
Heat Pump Paradox: The Industry's Adoption Divide
10 months ago
-
Not So Hot: Too Many Subpar Heat Pump Installations in the UK
10 months ago
-
The Most Popular Heat Pump in the UK: Is It In Your Home?
12 months ago
-
Heat Pumps - An Expensive Folly?
2 years ago
Currently viewing this topic 1 user ( nickmorgan ) .
- 21 Forums
- 1,875 Topics
- 40.9 K Posts
- 34 Online
- 2,196 Members
Join Us!
Heat Pump Dramas?
Thinking about installing a heat pump? Or already have one but it’s not performing as it should? Rob is here to help!
✅ Pre-Installation Planning
✅ Post-Installation Troubleshooting
✅ Performance Optimisation
Latest Posts
-
RE: Vaillant Arotherm ASHP gets noisier when it gets colder outside
I didn’t hear any problem with that noise it was less t...
By Judith , 8 hours ago
-
RE: New Project! ASHP, Solar PV + Battery, MVHR!
@editor yes please Mars, that would be fantastic.
By nickmorgan , 9 hours ago
-
Struggling to Find a Top Heat Pump Installer? We Can Connect You With the Best Installers in the UK
We know from homeowner’s posts and emails how stressful...
By Mars , 10 hours ago
-
RE: Baxi Air Source Heat Pump tips and tricks please
@cathoderay Our 01.00 to 06.00 electricity tariff is go...
By Cathyem1 , 10 hours ago
-
-
RE: Recommendation for Consultants in West Yorkshire for 1850's House Installation
Welcome to the forums. I’ll connect you some recommende...
By Mars , 10 hours ago
-
RE: Large ASHP recommendations for listed house
I’ll connect you via email (using the email address you...
By Mars , 10 hours ago
-
RE: Vaillant & OVO partner up to offer Heat Pump Plus
An update - got through to a helpful Octopus employee, ...
By samiebon1 , 12 hours ago
-
There should be no significant change in the load on th...
By JohnR , 13 hours ago
-
RE: Ideal Logic 10kW Heat Pump Pipes Noisy and Very Expensive to Run
@ajbevster If it's fully pushed in yes, better if it...
By JamesPa , 13 hours ago
-
RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps
@heatgeek Thank you, yes this is quite a meal and I'...
By Uk_pete_2000 , 14 hours ago
-
-
RE: How To Balance Radiators & the Role of the Lockshield Valve: A Homeowner's Guide
Its the actual flow rate, after you have bypassed the b...
By JamesPa , 17 hours ago
-
RE: The good, the bad and the not that great – my heat pump installation
@lokisam Thank you for reply. I have posted here bef...
By Dwynwen , 19 hours ago
-
RE: Is My Midea Heat Pump Inherently Defective?
Absolutely, I am very aware of that! Moving to a fan co...
By cathodeRay , 20 hours ago
-
-
RE: Noise problems with newly installed Samsung 8kW ASHP
@odynsfee Hi, I only just saw your post. Sorry to hear ...
By Lokisam , 1 day ago
-
RE: Best way to heat and store hot water with ASHP and Solar - am I being stupid?
@nickmorgan you’re absolutely spot on with your thinkin...
By Mars , 1 day ago
-
RE: Grant Aerona3 with Octopus Cosy tariff
Unless I completely misunderstood you (in which case ap...
By JamesPa , 2 days ago
Latest Topics
-
By bretix 15 hours ago
-
Large ASHP recommendations for listed house
By Greenlover75 18 hours ago
-
VisitaHeatPump Participants - Guidance Please
By Toodles 2 days ago
-
By KundK 2 days ago
-
Pipes and cables exposed on roof
By MichelleC 2 days ago
-
By Silverkop 3 days ago
-
Baxi Air Source Heat Pump tips and tricks please
By Cathyem1 3 days ago