Double heat pump for DHW?
How about this?
“Anything worth doing, is worth doing right.”
Posted by: @ianmk13I would imagine that that the availability of 4-phase ASHPs (compared to their single-phase siblings) may be a relevant consideration
It certainly would @ianmk13
There would appear to be an excess of phases to the tune of +1 🤗
Contrary to what we in UK might imagine, 3-phase heat pumps are plentiful.
The majority of domestic heat pumps being installed in mainland Europe are now three-phase.
Here, we can expect an installer to be specifying a 3-phase ASHP for 11kW and above.
But mainstream manufacturers like Samsung will happily supply a 3-phase 8kW unit if an installer chooses one (Model No. AE080RXYDGGEU)
As for those with storage batteries, there's no reason why an existing battery couldn't have the inverter(s) changed to provide 3-phase.
Although dedicated 3-phase inverters are available,
most 1ph inverters that can operate 'in parallel' are quite capable of being divided across the phases.
My existing Growatt SPF5000ES units offer that functionality,
as do the Sunsynk 5kW ECCO inverters which I will shortly be installing.
Inverters in parallel all use the same common battery, whether they are connected to single or three-phase mains input.
Save energy... recycle electrons!
Posted by: @transparentPosted by: @ianmk13I would imagine that that the availability of 4-phase ASHPs (compared to their single-phase siblings) may be a relevant consideration
It certainly would @ianmk13
There would appear to be an excess of phases to the tune of +1 🤗
Sorry. Fat fingers 🤣
Posted by: @transparentAs for those with storage batteries, there's no reason why an existing battery couldn't have the inverter(s) changed to provide 3-phase
Not so with my GivEnergy All-In-One, unfortunately ☹️
Posted by: @ianmk13Not so with my GivEnergy All-In-One
That's a tricky issue, and one which I expect to see being raised many times this year (2025) as consumers begin to realise what GivEnergy's strategy means for them.
Have a look at what I posted as a synopsis of that strategy here on another topic.
It's a well respected company, and they've taken a hard-nosed decision to concentrate on the new iteration of their All-in-One system.
They will gain a lot of customers in the UK who 'just want a storage battery' and aren't going to spend much time researching the subject.
Most of them will be very satisfied with what they've had installed, and remain largely unaware of its constraints.
Save energy... recycle electrons!
Posted by: @transparentIt's a well respected company, and they've taken a hard-nosed decision to concentrate on the new iteration of their All-in-One system.
Yes, that's another ball-ache coming so soon after my purchase of what will quickly become an obsolete system. In order to expand the storage capacity I will either have to add a further All-In-One, which includes another inverter (which will require DNO approval) or and a totally separate 'conventional' battery and inverter system (again, requiring DNO approval). That said, I will probably need additional inverter capacity for resiliance in any event once I install a heat pump - my present 6kW will be insufficient for 'whole home backup'.
- 22 Forums
- 2,073 Topics
- 45.5 K Posts
- 48 Online
- 3,351 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: Commencing on an ASHP Installation Process
I think therein lies the problem. Ratio of quotes to i...
By JamesPa , 57 minutes 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 , 3 hours ago
-
RE: Enabling WiFi: Samsung ASHP on Smart Things App
Thanks for the input. I've been running various experim...
By Grahamh-uk , 4 hours 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 , 6 hours ago
-
RE: 5 Star Service from Havenwise
... a mode of operation which increases losses due to p...
By Transparent , 7 hours 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 , 23 hours 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 , 1 day ago
-
RE: Getting the best out of a heat pump - is Homely a possible answer?
@editor Cobbler’s Mantra that!
By Toodles , 1 day ago
-
RE: Renewables & Heat Pumps in the News
Australia Blue, the first wind farm in Western Victoria...
By Morgan , 2 days ago
-
RE: Flow rate discrepancy between ASHP and manifold
That's useful thanks, I hadn't seen that table before. ...
By AshRolls , 3 days ago
-
In principle I agree, @johnmo, but with provisos. The...
By Majordennisbloodnok , 3 days ago
-
RE: Heat pump installation and BUS Grant timings
@jamespa Thats how I understood it too. 🙂
By ASHP-BOBBA , 3 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 , 3 days ago
-
I wouldn't be so sure about that. Heat pump designers ...
By JamesPa , 4 days ago
-
RE: Jokes and fun posts about heat pumps and renewables
@toodles they're a rowdy bunch!
By Mars , 4 days ago
-
RE: Home energy storage & battery register
@jamespa To a certain extent, by exporting to the grid ...
By Toodles , 5 days ago
-
RE: Forum updates, announcements & issues
@editor Fairy Nuff Mars, I doubt that my ramblings woul...
By Toodles , 6 days ago
-
RE: Confusion about heat pump sizing
We’ve published a deep dive into heat pump sizing, and ...
By Mars , 6 days ago
-
We’ve published a deep dive into heat pump sizing, and ...
By Mars , 6 days ago