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Ideal HP290 14kW ASHP - how to optimise

 
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Air Source Heat Pumps (ASHPs)
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 JamesPa
(@jamespa)
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Joined: 3 years ago
Posts: 3953
13/01/2026 5:30 pm  

Posted by: @cmartinbwmba
↑

@davesoa thanks a lot for this, how does it connect to the controller? I don't have Halo unfortunately.

No idea, don't even know if it does that's why I was hoping for an ideal expert.  Halo doesn't really do what you need IMHO.

 


4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
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 ASHP-BOBBA
(@ashp-bobba)
Prominent Member Member Installer
Joined: 1 year ago
Posts: 336
13/01/2026 5:47 pm  

@cmartinbwmba 1st answer from me is that the designer contractor must give you the design , this is the rules under MCS.


AAC Group Ltd covering the Kent Area for design, supply and installation of ASHP systems, service and maintenance, diagnostics and repairs.
Professional installer. Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.


   
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 cmartinbwmba
(@cmartinbwmba)
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Posts: 10
Topic starter 13/01/2026 5:53 pm  

@ashp-bobba just had this through from installer:

Space is 184m2 and heat loss is 63W/m2, space heating load is 11.6kW.



   
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 Davesoa
(@davesoa)
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Joined: 3 years ago
Posts: 87
13/01/2026 5:53 pm  

 

Setting up iLetComfort app.pdf

You don’t need a Halo, it’s entirely independent of it. Works over the house WiFi and remotely. Download the app and follow the instructions for installation and set up. You need to be close to the Control box, within a metre or so. Make sure you name the HP correctly and you’ll end up with this on the app. Tap the picture and it will take to the controls (you can use the app on other devices such as an iPad but you need to ‘share’ otherwise it kicks you off)  

IMG 0025

 


Ideal HP290 14kw heat pump, 2.99kw PV, Powerwall 2, Zappi charger, EV. Midlands location hybrid house part 1911, part 1970, part 2020s.


   
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 cmartinbwmba
(@cmartinbwmba)
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Posts: 10
Topic starter 13/01/2026 5:58 pm  

Sounds good, thanks a lot I'll check it out - might save me clambering into loft through son's bedroom constantly!



   
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 ASHP-BOBBA
(@ashp-bobba)
Prominent Member Member Installer
Joined: 1 year ago
Posts: 336
13/01/2026 6:09 pm  

Posted by: @cmartinbwmba
↑

@ashp-bobba just had this through from installer:

Space is 184m2 and heat loss is 63W/m2, space heating load is 11.6kW.

Roughly this should cost you £250-£300 per peak month and then less than this most other months on a lower sliding scale as it warms up this would be based on 30p/pkh. (assumes -3 external temp and standard use)

Buffer will not help

UFH secondary control will not help unless set up balanced and configured to solar gain set back only. 

Good thing to try, turn up every room stat to 24, set the curve to 4 or lower until you are cold and the HP is to low to heat your home with all stats not switching off, set curve up 1 point per 2 days and test until you get that nice warm even match, if you find rooms upstairs are over heating but down are not enough you will need to balance the rooms. 

"Sometimes" have secondary controls, booster heaters and a buffer set up just slightly out of balance can make a fair bit of difference in efficiency. As the system is complex due to extra controls it would need an engineer, IR camera, clamps and every traverse measured to match the flows and balance backwards.

Another thought is there an electric booster heater in the ASHP by any chance? 

 

 

 


AAC Group Ltd covering the Kent Area for design, supply and installation of ASHP systems, service and maintenance, diagnostics and repairs.
Professional installer. Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.


   
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