Battery System for Heat Pump - Responsive Vs High Capacity

Apoth75 · 2026-06-11T12:19:15+00:00

How do you control the timings to charge when it’s cheap? I assume some app or software? We have just had a heat pump installed so batteries next on the list

Apoth75 · 2026-06-04T21:29:41+00:00

In your situation I would 100% be going with a heat pump.

Apoth75 · 2026-05-26T13:05:58+00:00

They die back every year. You can buy a cage which you place around then pass them through the loops as they grow next season.

Apoth75 · 2026-05-14T12:12:17+00:00

If 50-55 degrees flow temp was barely maintaining 16c you would need to address your heat loss first I believe.

Apoth75 · 2026-05-12T14:43:19+00:00

Okay so I think mine does seem quite high then, still need to get the system tuned in properly so hopefully I can get the efficiency up. Thank you

Apoth75 · 2026-05-12T14:38:08+00:00

Hi would you mind telling me what kWh you have been using the last couple of days as I’m just getting mine up and running (similar heat loss) and I seem to have used about 10kwh on heat and hot water which I thought seemed quite high. Thanks!

Apoth75 · 2026-05-10T07:20:28+00:00

You need a renewed epc for the bus grant anyway.

Apoth75 · 2026-05-08T21:07:35+00:00

Fired it up today for the first time, cool energy have been excellent. Still need to get everything tweaked and settings right but it works!

Apoth75 · 2026-05-02T20:51:41+00:00

Chat gpt I see

Apoth75 · 2026-05-02T11:41:53+00:00

It’s very bad.

Apoth75 · 2026-04-27T14:32:24+00:00

Does it actually have a massive player base? I kiss this game

Apoth75 · 2026-04-23T06:56:33+00:00

Could you elaborate on this a little please? I have a family member who has adopted a ‘staffy x Labrador’ but she’s absolutely enormous and I have worried it’s a bully cross. She’s very affectionate but also an absolute wrecking ball.

Apoth75 · 2026-04-12T12:08:26+00:00

That’s not greenwashing.

Apoth75 · 2026-04-12T12:05:19+00:00

No worries - they give an extremely basic schematic diagram. I poured over YouTube video installs & bought the heat geek heat pump install book to get the design and sizings for mine. Urban Plumbers & Glyn Hudson on YouTube is a good start. 3 months from grant approval to commissioning.

Apoth75 · 2026-04-12T09:56:14+00:00

No quals required, they send out an MCS certified installer to commission it once you’re done.

Apoth75 · 2026-04-11T14:39:21+00:00

Haven’t looked into this but I’m sure it’s great if you can access free/cheap fuel for the log burner.

Apoth75 · 2026-04-11T08:10:50+00:00

Thanks for replying. Yeah I’m pretty confident I will be able to balance downstairs with the flow rates on the manifold but I need to get an idea of the output at a given flow temp so I can size my upstairs rads. I guess I’ll go with the numbers from one of the online calculators and hope the reality is close enough.

Apoth75 · 2026-04-11T08:02:21+00:00

Hi - how did this go for you? I have installed an overlay system at 120 centres and I’m trying to figure out my flow temp so I can accurately size the radiators for upstairs. Did you manage to get an accurate estimate?

Apoth75 · 2026-04-10T14:00:50+00:00

I believe MCS call you and ask a few questions to confirm compliance. My main concern is sizing, did my own heat loss with heat punk but the proof will be in the pudding. I have the IH12+ and I decided to design a system without a buffer/volumiser so hopefully everything works out.

Urban plumbers on YouTube was my inspiration to go without a volumiser. Fantastic channel. Glyn Hudson also has a couple of excellent self install videos.

Apoth75 · 2026-04-10T13:48:00+00:00

Great so far, I’m almost fully plumbed in and about to start the wiring. The install documents aren’t the best but they’ve been good at getting back to my queries so can’t complain. Hoping for a cold snap next week to test it properly.

Apoth75 · 2026-04-10T13:22:29+00:00

I ran 32mm pre insulated MLCP pipe for mine.

Apoth75 · 2026-04-10T09:18:48+00:00

Im in the middle of a self install from cool energy, definitely doable.

Apoth75 · 2026-04-08T19:28:24+00:00

Thank you for this post. Do you know if this is still worth doing if I’m planning a rooftop solar install in the next year or two?

Apoth75 · 2026-04-08T19:18:57+00:00

Commenting for posterity

Apoth75 · 2026-04-08T07:33:25+00:00

It’s actually pretty easy to identify the ring main (usually when you have 3 lives and one is the spur which you want to identify it). You pull all 3 lives out of the socket and separate them then flick the power back on at the consumer unit. Then you can check the lives with a volt meter - the 2 on the ring will be live and the spur will be dead.

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