Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
All the very best Kev. Hope all goes to plan. Loving the updates on a ‘live and ongoing’ install as I prepare to dive in to the world of ASHP CH. keep the updates coming.
Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.
2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.
All set for 8:30 tomorrow. The cylinder arrived on Friday and all storage heaters are removed and furniture/stuff moved out the way.
I've agreed a plan with the suppliers that shows where all the rads/pipework is going and a schedule that details the work they will do. They do seem fairly flexible about what goes where.
They've said 2 days so it's going to be hectic!
One of the things I'm considering is this
I've asked the suppliers and it costs about £1100 but OFGEM give you £805 up front and then £115 per year for 7 years. Sounds like a good ROI so I've asked for a quote. OFGEM have a limited budget for this so I'll have to check there is any left.
I'll update with progress tomorrow.
Kev
End of day1. Four guys arrived on time and got straight to it, two on radiators/pipework and two on the ASHP. At close of play we have the ASHP in place, piped and wired in:
the cylinder in situ complete with some shiny new pipework. I think there is more in the attic directly above but I haven't looked yet:
and all the radiators in place with about half piped in and half to do. This is one of the big ones at 2000x400 (a good excuse to get rid of the horrible curtains):
The ASHP is about 7-8m to the right of that window. It's the side of the house but not visible from the front. The neighbour's house is behind the hedge but about 30-40m away.
The guys were very pleasant, efficient, flexible, etc., took away all the day's rubbish and cleaned up. They suggested the best way to route the pipes to make them least visible; some dropping through ceilings and some through internal walls. It looks very neat so far.
Hopefully we'll have a working system tomorrow.
Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.
2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.
Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.
2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.
End of Day 2/Start of Day 3
It's all done! They finished about 5:30pm. It all looks good, very neat and tidy. This is the completed cylinder. The HW expansion tank is built in. The main controller is on the front of the cylinder and we also have a wireless controller for each of out two zones.
And this is the loft, immediately above the cylinder. The red tank is the expansion for the CH. There is a lot of new pipework.
And this is what it looks like under the cover. Scary!
And to complete the picture, the ASHP.
I was given a run through of the controls. It all looks straightforward and I'll probably leave it on the defaults for a while to let things settle in. It was nice to wake up to a pleasantly warm house; our kitchen, main bathroom and hall had almost no heating before so that's a pleasant change. The hot water is also much better because it's an unvented cylinder.
We were very impressed with the installers. They were professional, efficient and tidy and took away every scrap of waste. They spent more time hoovering than I ever do! They were also also flexible and happy to change radiator positions and pipe runs. All we had to do was supply coffee and cold drinks.
The ASHP iitself is very quiet. It's outside the kitchen and I can just hear it if I listen hard until the freezer kicks in and drowns it out. We can't hear it at all from the bedroom. We do have to get used to the normal CH pump/radiator noise after living with storage heaters.
The system's not getting much of a test at the moment because of the weather but that will come. I'd probably rather have the current benign weather than a cold snap to get used to things.
Next step is to let things settle in and then get the RHI application done. I also want to have a look at electricity usage. So far so good though.
Kev
Good morning Kev. Extremely pleased to hear that all seems good. We’re probably going to use the same company as you.
When you say the HW is better due to unvented cylinder do you mean the HW pressure has improved? I ask because the HW pressure here is appalling at the moment.
Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.
2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.
Excellent news and pleased for you. Still can’t do anything here till June earliest and require cavity wall insulation first. Strangely I’ve only managed to get one company to attend. Bizarre as I thought people would be fighting for the work but that seems not to be the case. Either they fail to respond to initial enquiry or fail to follow up with an appointment. Frustrating.
Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.
2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.
I had to stay away for a couple of days (all Covid-legal as I'm my dad's carer). Mrs M texted me this morning and said we'd had quite a bad leak but not to worry as she'd sorted it.
When I called, worried, she strung me along for a bit before she casually asked me today's date..... !! My sense of humour just about held out.
All is still well really.
@kev-m 🤣
New to heat pumps? Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
🎧 Prefer to listen? Heat Pumps Explained – use AUDIO50 at checkout for 50% off.
- 27 Forums
- 2,733 Topics
- 64.2 K Posts
- 154 Online
- 7,140 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Questions about A2A for heating as well as cooling
Fundamentally I have the same interpretation as @ashp-b...
By JamesPa , 7 minutes ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Samsung 16kw has been working well at home in Perthshir...
By DowallyDrifter , 24 minutes ago
-
RE: Aircon - in listed buildings
@etchedpixels thanks for giving such a full and helpful...
By GrahamF , 22 hours ago
-
RE: Acond heat pump failed after four years - diagnostic quote £940 plus VAT
Another idea if the above don't work - there are compan...
By downfield , 24 hours ago
-
RE: Love veg, hate watering cans
They have their downsides but boreholes are great in th...
By ian33a , 1 day ago
-
RE: Who's your electricity provider and what's your tariff?
@old_scientist The service engineer powered down the ex...
By Papahuhu , 1 day ago
-
RE: Issue with Samsung Cascade System
@jamespa It's a funny system, but was out only option l...
By Renewables345 , 1 day ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Thanks, I like the chart, very helpful and this will de...
By baroquebank , 2 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
Production resumed to normal once the issue ...
By MK4 , 2 days ago
-
RE: Digest of UK Energy Statistics
That sounds painful. It would be much better to charg...
By Transparent , 3 days ago
-
Hole diameter is small but hole length is also very sma...
By bobflux , 3 days ago
-
RE: Are Wind Turbines Really “Losers”?
We were sailing near a wind farm in the North Sea last ...
By Jeff , 3 days ago
-
@trebor12345 The idea is to ensure that Powerwall knows...
By Toodles , 3 days ago











