Immersun 

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Rated 1 out of 5 stars

My power diverter broke down after 18 months and despite claiming warranty for weeks they've now told me they creased trading on 13/1/26. Why they didn't tell me this when I first raised the issue ins... See more

Rated 5 out of 5 stars

I've am a great fan of the Immersun solar diverter, I've recently replaced my old unit after it diverted 10000 KwH of power over 10/11 years. Faultless performance so ordered a new one without hesi... See more

Rated 4 out of 5 stars

I inherited an Immersun (with little info from the previous owner) when I moved into a new home 18months ago. Everything worked smoothly until a recent incident. Once I’d established contact (my web b... See more

Company replied

Rated 2 out of 5 stars

We had an Immersun fitted recently. It appears to work well, so I've no complaints about its basic functionality. But there's a serious caveat. If you want to make use of the Immersun app to... See more

Company replied

Company details

  1. Solar Energy Company

Written by the company

Immersun is a leading provider of energy-saving solutions for homeowners. Our mission is to help individuals and families reduce their carbon footprint and save money on their electricity bills. We are committed to providing our customers with quality products and service that are easy to use and reliable. Our flagship product, the Immersun device, is a smart energy controller that optimises the use of solar thermal energy in domestic hot water systems. By diverting surplus solar energy to heat the hot water cylinder, the Immersun device reduces the need to use electricity or gas to heat the water, resulting in significant energy savings. In addition to the Immersun device, we also offer a range of other energy-saving products, including EV chargers. Our team of experts is always available to help customers find the perfect solution for their needs. We pride ourselves on providing excellent customer service, and we are dedicated to helping our customers save energy and money. With Immersun, you can feel good about doing your part to reduce your carbon footprint and save money on your electricity bills.


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All reviews

(340)

4 reviews in the last 12 months

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Rated 1 out of 5 stars

Immersun power diverter broke down…

Our Immersun power diverter broke down after only 3 years of use, there were at least 10 other residents who experienced the same issue,this product is not cheap and is very unreliable.

6 March 2023
Unprompted review
Immersun logo

Reply from Immersun

Dear Mike,

We are sorry to hear about the breakdown of your Immersun power diverter.

Quality and customer satisfaction are paramount to us at Immersun. Thank you for bringing this to our attention, we take your feedback seriously.

Best regards,

Customer Service Team, Immersun

Rated 5 out of 5 stars

A company with a strong aftersales and help ethos.

If I have a problem with my Immersun, Anish is always happy to help resolve it, no matter how small the issue.

3 March 2023
Unprompted review
Immersun logo

Reply from Immersun

Thank you for your fantastic feedback! 🌟 We take pride in our strong commitment to customer support, and it's wonderful to hear that Anish has been there to assist you, no matter the size of the issue. If you ever need help in the future, just give us a shout! 🚀🛠️

Warm regards,
The Immersun Team 👍😊

Rated 5 out of 5 stars

Sunny days

Quick service

7 February 2023
Unprompted review
Immersun logo

Reply from Immersun

Hello there! 🌞 We're delighted to hear that you're enjoying sunny days with our product. And we're equally pleased that you found our service quick.

Best regards,
The Immersun Team 🌟🌞

Rated 5 out of 5 stars

The greatest test is when things go wrong... and how they are put right!

In my opinion, the greatest test of a company is when things go wrong - how they react and resolve problems and how long this takes.

I purchased an Immersun unit which turned out to have a fault under certain loads.

Communication was great, we worked through some tests but couldn't resolve it this way.

My return was arranged and the fault on my unit was resolved promptly (1 week after it was collected).

There has always been a fast response to my ticket. I could guarantee I would have a reply within a day or less every time.

Thank you, Immersun for the excellent after-sales service, this is my second Immersum unit in 6 years, and not only will I be back again in future, but I will be recommending you and your excellent after-sales support!

30 January 2023
Unprompted review
Immersun logo

Reply from Immersun

Thanks for the sunny feedback! ☀️

Rated 5 out of 5 stars

Quick support response

I contacted support and within 4 hours had a satisfactory response which solved an issue with my Immersun problem. Great customer service and response

16 January 2023
Unprompted review
Immersun logo

Reply from Immersun

Thank you for taking the time to leave us this feedback. We are thrilled to hear that you had a positive experience with our customer support team and that your issue was resolved in a timely manner. We strive to provide excellent customer service and it is great to hear that we have met that standard for you.

Rated 4 out of 5 stars

Excellent support via chat on website today.

I have had issues with Immersun in the past (faulty equipment and bad customer support) but today I used online support via 'chat' because our Immersun stopped working after a power cut and the help I received was excellent.

13 January 2023
Unprompted review
Immersun logo

Reply from Immersun

We apologise for any issues you have had with Immersun, including faulty equipment and poor customer support. We strive to provide our customers with the best possible experience, and we are sorry that we fell short in your previous interactions. We are glad your recent experience using our online support chat was excellent. We are dedicated to providing our customers with the best possible service, and it's great to know that our team could provide you with the help you needed when your Immersun stopped working after a power cut. We appreciate your feedback, and we are committed to continuously improving our product and customer service. Thank you for giving us another chance, and we hope to have the opportunity to serve you better in the future.

Rated 5 out of 5 stars

Top drawer and super responsive support…

Top drawer and responsive online chat and email help. Very clear instructions provided and Diverter issues resolved.

An additional query submitted online was answered by a telephone call back. How's that for excellent customer service and where else do you get that nowadays. Superb company thank you Anish. Customer for life.

12 January 2023
Unprompted review
Immersun logo

Reply from Immersun

We are delighted to hear that you had a positive experience with Immersun's online chat and email help. We are especially pleased to hear that your additional query was answered with a telephone call back. It's great to know that our team went above and beyond to provide excellent customer service. It's a great honour to have you as a customer for life. Thank you for choosing Immersun.

Rated 1 out of 5 stars

Have an old unit that was fitted before…

Have an old unit that was fitted before the original company went bust. Several times when i needed support the new owners claimed that they are only supporting the older units out of goodwill and they have no responsibility or obligation to the original owners. Twice they even tried to claim that they are unreliable, catch fire and (surprise, surprise) i should purchase one of their new ones. When i mentioned trading standards and if they now own the intellectual property, i was quickly cut off the app and all communication stopped. Pathetic, will be swappping it for the much better myenergy Eddi very soon.

1 December 2022
Immersun logo

Reply from Immersun

Dear Reviewer,

Thank you for taking the time to share your feedback. We take all customer reviews seriously and strive to address any concerns raised.

However, it's important to note that after requesting additional information such as order confirmation to verify and fully address your concerns, we have not received the necessary details from you. This lack of information makes it challenging for us to confirm the authenticity of your review and provide a specific response or solution.

We're committed to supporting our customers and maintaining transparency in our customer service. While we understand your frustrations, without verification, we are unable to confirm the claims made in your review.

We respect your decision to consider alternative products and wish you the best with your future choices.

Sincerely,

Customer Service Team, Immersun

Rated 5 out of 5 stars

Great App

Immersun have always given great support but I have just downloaded their new APP... Outstanding

16 December 2022
Unprompted review
Immersun logo

Reply from Immersun

We are thrilled to hear that you have had a positive experience with Immersun and that our support team has met your expectations. We are especially excited to hear that you have recently downloaded our new APP and found it outstanding. We are dedicated to providing our customers with the best possible experience, and it's great to hear that our new APP can do that for you. We appreciate your support and look forward to continuing to provide you with the best service and products. Thank you for choosing Immersun.

Rated 5 out of 5 stars

Clear well written advice

I had an issue with my Immersun units connectivity to the internet
Having raised the problem I received a comprehensive replay from the support team suggesting potential cures. I worked through the suggestion and very quickly solved the problem.
Excellent support, thank you!

15 December 2022
Unprompted review
Rated 5 out of 5 stars

Just got to clear installation with my electrician ....

At this stage I am still considering whether to order a replacement for my old Eco Immersun. So far the help and advice from (new!) Immersun I've had has been given very quickly. I merely, now, need to speak to my electrician concerning installation. If he's happy, I'll certainly be going ahead. Thanks Fellahs!

9 December 2022
Unprompted review
Rated 5 out of 5 stars

Great support

Even though I bought this immersun unit way before the present company took control they have provided an excellent after sales support each time I have needed them.

Well done Anish and the team.

4 November 2022
Unprompted review
Rated 1 out of 5 stars

Bad Product and Customer help

I am a contractor; they sold the product we installed it and they are trying to find everything they can to get out of replacing it.
The customer has no hot water, and they are the ones feeling it.
Why are their products out there if they have a design fault.

24 October 2022
Unprompted review
Immersun logo

Reply from Immersun

Hi Stuart,

The company you represent has been ordered by a court of law to pay us a substantial amount for their fraudulent business practices, which we have regrettably fallen victim to. Your review is entirely misleading in content and defamatory. It is pathetic really, especially given that your company has still not settled the amount owed to us.

We have spoken with the end customer whom you appear to have deliberately misinformed, and they will continue using our high-performance power diverter products, hopefully avoiding the incompetence and problems arising from your company.

Kind Regards,
IMMERSUN

Rated 5 out of 5 stars

Well worth it

Bought the original version (made by eco4 who sold company brand and product to current manufacturers)...in 2014. Still going strong and infact have now re-established the immerlink functionality courtesy of the very helpful help desk. Works a treat

31 October 2022
Unprompted review
Rated 2 out of 5 stars

Warning: wireless connectivity will cost you an extra £199

We had an Immersun fitted recently. It appears to work well, so I've no complaints about its basic functionality.

But there's a serious caveat. If you want to make use of the Immersun app to control the main unit remotely, that will cost you an extra £199.
No,that's not a typo - £199 to connect your Immersun wirelessly.

Seriously? In 2022?

£199 for a glorified WiFi repeater - which connects to the Immersun wirelessly!!

What a rip-off.

6 October 2022
Unprompted review
Immersun logo

Reply from Immersun

Thank you for your review of Immersun. We appreciate your feedback. We would like to clarify that the wireless connectivity feature of Immersun is an optional add-on, which does come at an additional cost of £199. It's an extra convenience for those who are looking for it.

However, we understand that this may not be for everyone, and customers can still use Immersun without the wireless connectivity feature, which does not affect the basic functionality of the product. Additionally, we would like to point out that £199 is a reasonable cost for the technology and convenience that the wireless connectivity feature offers.

We understand that some may find this additional cost high, but we assure you that it is in line with industry standards and that the wireless connectivity feature is an optional add-on.

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