Search with Wattson

Notifications

Clear all

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!

[Sticky] Struggling to Find a Top Heat Pump Installer? We Can Connect You With the Best Installers in the UK

Mars · 2025-02-09T21:19:19Z

We know from homeowner’s posts and emails how stressful it can be to find a skilled and reliable heat pump installer in the UK. With so many options (and plenty of horror stories out there) it’s hard to know who to trust. That’s why we’ve been working hard to build an exclusive database of the very best heat pump installers in the country. These are professionals who consistently deliver high-quality installations and excellent customer service, so you don’t have to take a gamble on your investment. If you’d like me to connect you with a top installer in your area, drop me an email at editor@renewableheatinghub.co.uk and I’ll be happy to help. This is not a guarantee that they will undertake your project. This is simply a connection to the best installers we know. When contacting me, please can you provide the following details: Name Email Phone number Address

Page 5 / 8 Prev Next

Air Source Heat Pumps (ASHPs)

Last Post by ASHP-BOBBA 17 hours ago

89 Posts

24 Users

40 Reactions

15 K Views

RSS

Silver fox

(@silver-fox)

Active Member Member

Joined: 1 month ago

Posts: 6

05/04/2026 10:26 pm

@editor HG are the lower price, Vaillant; Installio are Grant.

👍

ReplyQuote

JamesPa

(@jamespa)

Illustrious Member Moderator

Joined: 3 years ago

Posts: 4758

06/04/2026 8:23 am

Posted by: @jamespa

↑

@jamespa HG are guaranteeing 390% efficiency but have not given a specific top flow temperature, but emphasise that this will be variable; they have measured12Kw heat loss. Installio state that 45 degrees at -3C is the aim, with 10Kw heat loss measured, 415Kw efficiency for heating, SPF 3.4. Both recommend 12Kw heat pumps.

10kW is a high loss, is your house big/poorly insulated?

Rad upgrades are an easy retrofit so if a few turn out to be too small it's not a big deal. Age doesn't matter, size is what counts.

If hg are cheaper and genuinely guaranteeing cop of 3.9 and fitting vaillant as opposed to Grant I would probably go with them personally. Better controls with a guarantee of performance. Nothing wrong with grant although historically they have encouraged poor system design practice. Guaranteed performance means that if rads are undersized they would have to up size them (depending on the precise terms!).

I am beginning to wonder if HG play a numbers game, promising only the lowest likely number of rad upgrades but adding a bit of a margin to the price, then if it turns out they need more (which, in reality, you can only really tell by experiment) there is enough slack overall in the quotes (averaged over many instals) that they can afford to come back. There would be some logic in this approach given the uncertainties involved!

Of course I don't have the details so this is based on limited info. Has either given a detailed breakdown, if so I'm happy to take a look if you post them.

This post was modified 3 weeks ago 7 times by JamesPa

This post was modified 3 weeks ago by Mars

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.

👍

ReplyQuote

Hazel C

(@hazel-c)

New Member Member

Joined: 3 weeks ago

Posts: 2

06/04/2026 10:56 am

Hi,

I’ve just sent a more detailed email to the editor looking for recommended installers for ASHP system around Rossendale in Lancashire, but if anyone else out there has experience or recommendations they would be gratefully received.
we have already approached Global Energy as they are Lancashire based and manufacture here but having read a few threads on this forum they seem to get mixed reviews.

👍

ReplyQuote

Mars

(@editor)

Illustrious Member Admin

Joined: 5 years ago

Posts: 4532

Topic starter 06/04/2026 11:50 am

@hazel-c, I’ll reply to your email shortly, but my initial suggestion would be not to proceed with Global Energy Systems, for a number of reasons based on our experience and feedback from other customers.

This post was modified 3 weeks ago by Mars

Get a copy of The Ultimate Guide to Heat Pumps

Subscribe and follow our YouTube channel!

ReplyQuote

Hazel C

(@hazel-c)

New Member Member

Joined: 3 weeks ago

Posts: 2

06/04/2026 1:13 pm

@editor thanks for that. Look forward to your reply to my email.

ReplyQuote

Silver fox

(@silver-fox)

Active Member Member

Joined: 1 month ago

Posts: 6

06/04/2026 7:03 pm

@jamespa

That is a very kind offer. I am not sure however how to post the proposals without broadcasting my personal details etc on the hub. HG is password protected too.

The house has 5 bedrooms and floor area of around 230 sq m, cavity walls insulated, double glazing and 200-250mm of roof insulation.

ReplyQuote

JamesPa

(@jamespa)

Illustrious Member Moderator

Joined: 3 years ago

Posts: 4758

06/04/2026 9:32 pm

Posted by: @silver-fox

↑

@jamespa

That is a very kind offer. I am not sure however how to post the proposals without broadcasting my personal details etc on the hub. HG is password protected too.

The house has 5 bedrooms and floor area of around 230 sq m, cavity walls insulated, double glazing and 200-250mm of roof insulation.

OK. For comparison my house is 200sq m, 250mm loft insulation, a mix of solid wall with IWI, uninsulated solid wall and lightweight block, double glazing, uninsulated floors. 7kW. It is fairly close to cubic which obviously helps.

Based on this and the scattergram below from heatpumpmonitor I think its quite likely yours is actually, <10kW, but whether its low enough for the Vaillant 7kW machine (or anyone else's ~8kW)) is clearly rather doubtful, and the 10kW Vaillant is just the 12kW downrated so not much point in that. Thus I can understand the choice. Since Heat Geek are guaranteeing performance, if it turns out they have seriously overestimated loss and it manifests itself in poor performance, they are presumably on the hook to do something. Perhaps another reason to choose Heat Geek.

This post was modified 3 weeks ago by JamesPa

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.

ReplyQuote

Damo76

(@damo76)

New Member Member

Joined: 2 weeks ago

Posts: 5

17/04/2026 6:42 pm

I'm a complete newbie to heating systems and currently looking a getting a ashp installed. I'm at the Planning and quote stage and as well as looking at Octopus, EDF, Aria, Heat Geek, BG etc, Ecogenica UK came up in my search. Big in Australia apparently and seemed a reasonable quote. Seems to be very little information or reviews from UK customers so came to the forum for advice.

Thanks

Damo

👍

ReplyQuote

Mars

(@editor)

Illustrious Member Admin

Joined: 5 years ago

Posts: 4532

Topic starter 17/04/2026 9:09 pm

@damo76 welcome to the forums. I'll be honest, I've never heard of Ecogenica. I'll make some enquiries this weekend and see what the low down is on them.

Get a copy of The Ultimate Guide to Heat Pumps

Subscribe and follow our YouTube channel!

ReplyQuote

Damo76

(@damo76)

New Member Member

Joined: 2 weeks ago

Posts: 5

18/04/2026 9:16 am

Thanks, the estimate is 2,793 for a 8 KW system including the unit, cylinder, installation and 4 radiator changes which seems very cheap. So cheap it immediately set my alarm bells ringing.

ReplyQuote

JamesPa

(@jamespa)

Illustrious Member Moderator

Joined: 3 years ago

Posts: 4758

18/04/2026 3:39 pm

Posted by: @damo76

↑

Thanks, the estimate is 2,793 for a 8 KW system including the unit, cylinder, installation and 4 radiator changes which seems very cheap. So cheap it immediately set my alarm bells ringing.

Maybe. If you post the quote details happy to comment/suggest questions to ask

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.

👍

ReplyQuote

Damo76

(@damo76)

New Member Member

Joined: 2 weeks ago

Posts: 5

18/04/2026 10:11 pm

@jamespa

Ecogenica Outback 8kW
Heat Pump Accessories Kit
Pipework
Electrical Pack
Greenacre 150L
G3 Accessories Pack
Survey
Electrician
Heating Engineer
Plumber
Estimated new radiators

Number of new radiators
4
Boiler Upgrade Scheme (BUS) Grant

-£7,500

Estimated total

£2,798

ReplyQuote