
Last seen: Sep 9, 2025
I suspect that the heat-pump is 'cycling'. Ie it's switching on/off every few minutes in response to temperature sensors. If you have Thermostatic...
That's interesting @cathyem1 Many installers don't like reconnecting an existing solar-thermal to a newly installed heat-pump system. It can be m...
I've done a few checks on the Growatt MOD4000-TL XH inverter. It costs around £550 in UK, and is a typical basic 3-phase design with a battery port....
Mechanical Ventilation with Heat Recovery (MVHR) needs to be planned/considered at a very early stage. Installing the larger pipes first is the best...
Using contractors also provides opportunity for them to get things wrong. So it's still important to understand the basics of what you're asking the...
What's the make/model of that solar inverter @davidalgarve Is the storage battery connected to it directly?or does the battery have its own mains po...
That's the sort of schedule we'd expect to see for a typical gas boiler installation @cathyem1but it doesn't best reflect how your heat pump should op...
Levitating Smart Meters are to be discouraged @cathyem1 😮 I'll have a look at your new topic and see if we can help with that.
I too have an initial question... 😉 How much of this renovation would you like to undertake yourself?Or are you simply wanting to throw mon...
Yes, DM is available, although the line-formatting is naff. 😥 Simply click on my name in blue. You'll arrive at the info page for me.Click o...
Nick - I have installed Solar PV, storage battery and MVHR, all using a DIY approach in my 1937 detached house. If you raise any of these issues in ...
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RE: COP is not the only measure of efficiency
I am a little sceptical of this, not least because, in ...
By jamespetts , 5 minutes ago
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RE: Renewables & Heat Pumps in the News
To unpack this a little.... 1) how many of us in this...
By Lucia , 23 minutes ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@ashp-bobba Well done for stepping in where most would ...
By JamesPa , 2 hours ago
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RE: Who’s Caved and Switched the Heating On Already?
I have automated this decision. I have a heat pump with...
By jamespetts , 10 hours ago
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RE: Vaillant aroTherm Plus 10kW thoughts?
@realevil the fans and fan speed / coil size (height, w...
By ASHP-BOBBA , 12 hours ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@morgan this can just be done by your sepecilist when t...
By ASHP-BOBBA , 12 hours ago
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RE: Buffers, hot water and cooling
I agree it seems like a lot of work particularly as its...
By JamesPa , 13 hours ago
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RE: Anyone still weathering it out with Agile?
@toodles I guess it all comes down to import averages. ...
By Tim441 , 16 hours ago
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RE: 300 Liter Tank - Do I have to heat it all?
The size of DHW tank affects the anti-legionella cycle....
By Transparent , 17 hours ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
@scalextrix Name plate capacity
By HCas , 20 hours ago
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RE: Solar Thermal DHW and ASHP
I was originally contemplating a solar thermal installa...
By jamespetts , 21 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
My system installed in July 2024 has produced 6.4mWh in...
By jamespetts , 21 hours ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
@judith thanks for your suggestions. Starting from col...
By GrahamF , 2 days ago
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RE: Inventor (Midea) Heat Pump short cycling advice
I switched to "fan coil mode" to be able to set water t...
By immunity , 2 days ago
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RE: DESNZ doing a survey which asks the right questions!
Without a survey their only source of data is probably ...
By JamesPa , 2 days ago
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RE: Can you help with our research: solar panels, EV chargers, home batteries, heat pumps?
Just done your survey!
By Judith , 3 days ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
@cleardene-ashp just thinking about your issues here. Y...
By Judith , 3 days ago
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RE: Midea ASHP – how to set weather compensation
@cathoderay OK let's wait and see, it sounds an interes...
By Tasos , 3 days ago
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RE: What is the Heat Geek Guarantee?
@judith, I’m with you on Heat Geek, but there really do...
By Mars , 3 days ago