Mixergy Avis 

I strongly advise against using Mixergy products, they have two support staff to deal with problems via telephone and no employed engineers, they subcontract out. My system hasn’t been working for approximately four months and I still can’t get anyone to help me. No one answers the phone.

Mixergy reply is totally misleading, no one sent an engineer it’s been months and this isn’t the first problem I have had, the person I spoke to says he needs to phone me to get me to re set the system but he is never in the office and no one answers the support help line. I am utterly fed up. I have been so patient.

logged a call 7 days ago for my system that isnt working. still not had a reponse from the tech team despite chasing twice. just not good enough.

We moved into a new property which has a new technology for hot water system but didn’t work and we had no hot water for some time. Someone was sent to come sort it and after hours of working on it still nothing. However Mixergy sent someone else (Abbas) he came late and fixed it. He was very kind and patient to explain how the hot water system works and also sent a follow up instructions. A good customer service!

We are incredibly grateful to the engineer Abbas Khan for the exceptional service provided. Our solar power system had been out of operation for a long time, and after struggling to find a solution, it was finally fixed quickly and efficiently.

Not only was the engineer highly skilled and professional, but also incredibly friendly, patient, and willing to explain everything clearly. Every question we had was answered with care, giving us complete confidence throughout the entire process.

It's rare to come across someone who combines technical expertise with such outstanding customer service. Thanks to the engineer's dedication and efficiency, our solar system is working perfectly again.

Thank you so much for your hard work and excellent support. We couldn't be happier with the service and would highly recommend you to anyone looking for a trustworthy and knowledgeable solar engineer!

Good and bad
I’ll start with the bad.

- top up pump failed after 4 months
- tried 4 times on a phone call over 2 days and went to voicemail
- Initial customer care support line is terrible. (New build plumber called them, a guy answered the phone and said he can schedule in a plumber but can take up to 2 weeks. I explained I have no hot water and a 10 weeks old baby, I need a better confirmation on a repair date. Asked him to call keep me on the line and speak to the department that arranging bookings. His attitude was poor and could not care less, didn’t even bother attempting to assist or understand the situation.)
- a slight design improvement required. The pump needs a shut off valve instead of draining 210L in order to change it and requiring it to be topped up again. It’s a very energy efficient self sustaining immersion heater but that section doesn’t seem like it was thought through and very green in saving water.

Good
- Christine or Christina (not sure of her name) called me and was very helpful and accommodating. Very easy to talk to and a friendly approach.
- Rob was then speaking to me in explaining how the system works, talked me through how to use the fail safe back up system. (Even those that failed but no fault of Mixergy)
- Dan turned up early next day and fixed the issue.

In summary, once the case is escalated or in the right hands. The customer service is great.

Rob and Dan both have very deep knowledge of how the system works. They are very patience and willing to give time to explain and answer any questions. Rob even video called to assist in correcting the mistakes the new build developers made/installed incorrectly.
It’s so nice to have extremely competent staff members to assist.
Rob even messaged me the next day after the appointment to check up if everything was repaired and working normally which is so rare now a days. Overall the service has been fantastic.

I recently bought a house in Kellen homes, Hawks View. The property comes with the Mixergy boiler. I had trouble connecting the boiler to my phone. Abbas from Mixergy who was working in the neighbourhood immediately responded and sorted the issue. Great work.

I did have problems getting Mixergy to come to my development to solve an issue with my hot water tanks , but they have now sent a very experienced engineer who has found the problem and it appears to have been resolved and the customer is very happy which was the main thing to achieve , Thank you again David

Mixergy Technical Support are very professional. My Tank went off-line and they recommended a nano router and got me back on-line. Thanks to Khizar.

Abbas khan was very helpful in resolving my issues at plot 83 Calder Rise, David Wilson Development in Preston. He was patient and friendly, keen about customer's satisfaction. Excellent customer service

The Mixergy cylinder came pre-installed in our new-build home, so this was not a product we chose.

Despite being marketed as energy efficient, our gas bill tripled within the first month. The system consumes an unreasonable amount of energy and performs nothing like what is advertised. This is completely unacceptable for a modern, supposedly efficient setup.

Customer service has been consistently unhelpful. They do not answer the questions you ask and instead respond with generic, evasive replies that do nothing to resolve the issue.

Technical support has been even worse. Their responses give the clear impression they do not want to help, and on at least one occasion remote changes were made to the system without our consent or proper explanation. This is extremely concerning and has destroyed any trust we had in the product or company.

Overall, a very poor experience. High running costs, misleading efficiency claims, and unacceptable support. Would not recommend under any circumstances.

I purchased a direct heating cylinder which I heat using off-peak electricity at night. The cylinder works well and I like the functionality of the app. However, I'm not impressed with the company's customer support service. Most cylinders are now installed as unvented pressurised systems, but we needed to install ours vented with a cold water tank in the attic. There were no specific installation instructions for this installation method and we had a question about whether a tun dish was required. My plumber phoned the installation help line and was promised a call-back which never came. Initially the tank would not operate and it took a little while to understand that a system reset was needed. Finally, for the first 24 hours, the data in the app suggested that the tank was turning on and off at a high frequency which seemed very bizarre. A screen grab of the recorded dats was sent to Mixergy support and an automated reply said that the support team would be in contact soon. It's now a month on and I've heard nothing. However, the strange data has not reoccurred and the tank is working fine. So a mixed review for Mixergy!

My ancient hot water tank developed a leak that could not be repaired. Our household hot water usage is unpredictable and having a full tank of hot water 24*7 was costing a lot of money. Our gas water heater was also basic, with no intelligence. Looking around, Mixergy seemed to the answer.

In practice, it is even better than I had realised. On many days, we heat only 15% of our tank because that's how much we need. When my son returned home for a while, we simply increased to 25%. When we have a houseful, we will heat to 80%. It's all so efficient and easy to control. It works as promised. Everyhome would benefit from Mixergy.

Great guy definitely knew his stuff … we had issues with solar not working correctly .. it is now

So grateful to Abbas who attended our home at 10pm on a friday night to fix our water tank. After weeks and months of different electricians unable to fix the problem, Abbas was a hero to get us hot water, a simple fault that he had the knowledge to find where 4 others failed to spot.Top marks. Would recommend Abbas.

Amazing tech Daniel from Mixergy came out and fixed my boiler same day after previously waiting months for council who had no idea how to fix it. Amazing job thankyou

Great technical support and good-will fix when four year old tank developed a problem.
The tank itself does all that's claimed of it very well. Highly recommended.

Brilliant. I love the way after a couple of weeks Mixenergy knows how much water you use each day and fills the hit water up accordingly. We have never ran out of hot water, yet our hot water bill is kept to a minimum. I am really pleased we put this system in. Very clever

Since I moved to my property didn’t had a hot water, they've sent 2 previous engineers couldn't fixed the issue but when ABBAS KHAN he sorted out the problem in 15 minutes also showed me a few tricks with the tank to make sure I always have hot water and he sorted water pressure up thank

In 2021 I completed construction of two houses to the passivhaus standard. I installed 250l Mixergy tanks in both houses that are heated using the internal immersion heater. I benefit from off-peak electricity at 7p/kW from 23.30 - 05.30 through Octopus Intelligent Go and each tank draws just under 3kW for about three hours costing less than 70p. The tank is easy to programme through the app to set the electricity tariff and I can always see how much hot water is in the tank both on the app and on the visual display attached to the tank. When I go on holiday I switch off the tank from the app and have observed that it takes several days to cool highlighting how well it is insulated. Mixergy were very responsive throughout the design/orderning process and when one of the third-party supplied pressure vessels was noisy this was replaced without argument.

It just works at a level of integration no other hit water tank can