Forums

Forums
Renewable Heating
Grounds Source Heat...
Best practice durin...
 
Notifications
Clear all

Best practice during summer?

 
Grounds Source Heat Pump (GSHPs)
Last Post by Toodles 2 years ago
5 Posts
5 Users
1 Reactions
1,272 Views
RSS
 Square93
(@square93)
New Member Member
23 kWhs
Joined: 2 years ago
Posts: 1
Topic starter 04/06/2023 7:49 am  

I have a new GSHP system, installed in January 2023.  It is a all-new retrofit but that’s just for background.  I have gradually fine-tuned to our needs and it is working well. 
The controller is CTC Ecologic.

What should I do during the summer.  I normally don’t need heat from May to end Sept (or can use secondary source for minor cold spells).

I have the room thermostat (Heatmiser) down low and that is stopping the heat but (correct me if I’m wrong) the system is still keeping the Buffer tank hot.  I still want DHW all summer but surely Its costing me money to keep the buffer hot for several months.

Is there a way to switch off Heating and Buffer but retaining DHW or am I over-concerned.  Is best practice to turn system down but leave it running?

 


   
👍
1
Quote
Mars
 Mars
(@editor)
Illustrious Member Admin
26254 kWhs
Veteran
Joined: 4 years ago
Posts: 2979
05/06/2023 11:09 am  

We disable/turn off all the thermostats that call for heat - this means the buffer doesn't heat for the central heating. Our ASHP remains "on" but the only thing it does is HW. 

Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb

Subscribe and follow our Homeowners’ Q&A heat pump podcast


   
ReplyQuote
 robl
(@robl)
Honorable Member Member
2570 kWhs
Joined: 3 years ago
Posts: 199
05/06/2023 11:24 am  

Correct me if I'm wrong, but is heatmiser an on/off thermostat type controller?

Can you describe your GSHP a bit more:

Make / model /power?  Is it inverting, or on/off (small ones usually are)?

My knowledge is all generic I'm afraid - I made my own gshp, it has no buffer, and just feeds rads or a DHW tank on demand.  Ours is just a 2.5kW on/off unit, as many small gshp are.

As to whether you can turn off the buffer, but keep DHW depends on how it is plumbed and controlled.  Do you have a conventional DHW tank as well as the buffer?  Here's a simplified pic of ours (replace boiler with gshp)- could you find/draw a picture of yours, I think it would help a lot:

image

   
ReplyQuote
 Strummer22
(@strummer22)
New Member Member
30 kWhs
Joined: 2 years ago
Posts: 2
05/06/2023 11:36 am  

Posted by: @square93
↑

I have a new GSHP system, installed in January 2023.  It is a all-new retrofit but that’s just for background.  I have gradually fine-tuned to our needs and it is working well. 
The controller is CTC Ecologic.

What should I do during the summer.  I normally don’t need heat from May to end Sept (or can use secondary source for minor cold spells).

I have the room thermostat (Heatmiser) down low and that is stopping the heat but (correct me if I’m wrong) the system is still keeping the Buffer tank hot.  I still want DHW all summer but surely Its costing me money to keep the buffer hot for several months.

Is there a way to switch off Heating and Buffer but retaining DHW or am I over-concerned.  Is best practice to turn system down but leave it running?

 

Does the CTC controller or an in-built display on the heat pump unit allow you to program when the heating is on or off?

You may also find it beneficial to control the hot water settings too. My hot water is set to only turn on for an hour in the morning and a couple of hours in the evening, although I expect the saving from this is minimal. 

 


   
ReplyQuote
Toodles
 Toodles
(@toodles)
Famed Member Contributor
11253 kWhs
Veteran
Joined: 2 years ago
Posts: 1818
31/08/2023 5:58 pm  

@robl We have the Heatmiser Neo Air V2 and this is an on/off system. Can’t locate the setting right now but, I’m certain there is an adjustment for hysteresis but that is all. I had hoped to have a Homely Smart Controller but, as yet, there isn’t a version for the Daikin that will control 2 separate pumps. Regards, Toodles. 

Toodles, he heats his home with cold draughts and cooks his food with magnets.


   
ReplyQuote
Forum Jump:
  Previous Topic
Next Topic  
Share:

Join Us!

Heat Pump Dramas?

Thinking about installing a heat pump but unsure where to start? Already have one but it’s not performing as expected? Or are you locked in a frustrating dispute with an installer or manufacturer? We’re here to help.

✅ Pre-Installation Planning
✅ Post-Installation Troubleshooting
✅ Performance Optimisation
✅ Complaint Support (Manufacturer & Installer)

👉 Book a one-to-one consultation now.

Latest Posts

x Powerful Protection for WordPress, from Shield Security
This Site Is Protected By
Shield Security →