Best practice during summer?
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?
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
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:
Posted by: @square93I 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.
@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.
- 22 Forums
- 2,073 Topics
- 45.5 K Posts
- 79 Online
- 3,353 Members
Join Us!
Trusted Installers
Struggling to find a reliable heat pump installer? A poor installation can lead to inefficiencies and high running costs. We now connect homeowners with top-rated installers who deliver quality work and excellent service.
✅ Verified, trusted & experienced installers
✅ Nationwide coverage expanding
✅ Special offers available
Latest Posts
-
RE: Solar Power Output – Let’s Compare Generation Figures
@andris ”In the Mega Month of May”… 🙂 ...
By Toodles , 8 minutes ago
-
RE: 5 Star Service from Havenwise
Oh good! I was wondering when/if you might pick them ...
By Transparent , 15 hours ago
-
RE: Air Changes per Hour - ACH and the MCS requirement
update - my old installer insisted on a heat loss of 11...
By MatWin , 17 hours ago
-
I agree it's not very helpful. Generally, the max heat ...
By Old_Scientist , 19 hours ago
-
RE: Commencing on an ASHP Installation Process
I think therein lies the problem. Ratio of quotes to i...
By JamesPa , 2 days ago
-
RE: Why Your MCS-Certified Installer Might Not Be As Competent As You Think
Hive and most other smart thermostats don't play well w...
By JamesPa , 2 days ago
-
RE: Enabling WiFi: Samsung ASHP on Smart Things App
Thanks for the input. I've been running various experim...
By Grahamh-uk , 2 days ago
-
RE: Radiators downstairs are cooler at the bottom after ASHP install
@melonbuffet Hi, this sounds great is you are getting 5...
By ASHP-BOBBA , 2 days ago
-
RE: Ripped Off: How UK Homeowners Are Paying Gas Prices for Wind Energy
I believe there's another reason that network upgrades ...
By Transparent , 3 days ago
-
RE: What’s the modern take on advised types of insulation?
@jeff I am sorry @jeff if I have misunderstood what you...
By Toodles , 3 days ago
-
RE: Getting the best out of a heat pump - is Homely a possible answer?
@editor Cobbler’s Mantra that!
By Toodles , 3 days ago
-
RE: Renewables & Heat Pumps in the News
Australia Blue, the first wind farm in Western Victoria...
By Morgan , 4 days ago
-
RE: Flow rate discrepancy between ASHP and manifold
That's useful thanks, I hadn't seen that table before. ...
By AshRolls , 5 days ago
-
In principle I agree, @johnmo, but with provisos. The...
By Majordennisbloodnok , 5 days ago
-
RE: Heat pump installation and BUS Grant timings
@jamespa Thats how I understood it too. 🙂
By ASHP-BOBBA , 5 days ago
-
RE: Antifreeze top up for my heat pump - is this a rip off?
@sallyl That sounds about right if they are re-filling ...
By Brendon Uys , 5 days ago
-
I wouldn't be so sure about that. Heat pump designers ...
By JamesPa , 6 days ago
-
RE: Jokes and fun posts about heat pumps and renewables
@toodles they're a rowdy bunch!
By Mars , 6 days ago
-
RE: Home energy storage & battery register
@jamespa To a certain extent, by exporting to the grid ...
By Toodles , 7 days ago