Save money on your heating bills by replacing your back boiler. Modern heating systems can increase your home’s energy efficiency, reduce your carbon footprint and keep your house compliant with new building regulations.
Get affordable, reliable and trustworthy boiler upgrades when choosing Boilerhut as your back boiler installer.
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Or Call: 02920 099898
Boilerhut has a team of boiler experts and Gas Safe registered engineers who specialise in installing efficient heating systems. Upgrading will ensure all your heating needs are met while keeping your home warm, regulated and safe. Key points about replacing your back boiler include:
We recommend combi boilers when considering upgrading. Replacing your back boiler with a combi boiler can cost between £3,000 and £4,500, depending on your requirements. The costs will depend on two things:
Below is an approximation for a back boiler to a combi boiler swap:
| Combi Boiler Model | Cost – Boiler Only | Cost – Installed |
|---|---|---|
| Viessmann Vitodens 050-W | From £1,060 | From £3,300 |
| Viessmann Vitodens 100-W | From £1,427 | From £3,600 |
| Viessmann Vitodens 111-W | From £2,254 | From £4,200 |
| Worcester Greenstar 4000 | From £1,541 | From £3,800 |
| Alpha E-Tec NX | From £810 | From £3,000 |
We’re proud to be accredited installers for industry-leading brands, ensuring quality and reliability in every installation:
Diamond Level Accredited Installers with 12-year guarantees.
Affordable, reliable heating solutions.
Innovative boilers designed for durability and performance.
Cutting-edge technology for maximum efficiency.
An old back boiler unit is generally about 50-70% efficient. This means half the money you’re spending on heating is wasted. Combined with outdated applications such as a pilot light, inefficient heat transfer and an old hot water tank, these wasteful systems can lower the value of your property.
The installation of new back boilers is now illegal due to their inefficiency and inability to match new home regulations. They’ve been replaced by safer, more reliable systems that meet higher safety standards, with the UK government offering grants to phase them out. To ensure the safety of your home, here are some reasons why you should replace your back boiler:
Save money in the long run by investing in a safe and efficient boiler. Easily get a quote by contacting our team at 029 2009 9898.
The Vitodens 100 combi boiler is a premium Viessmann boiler with a stainless steel heat exchanger. It’s designed to last and ensure you’re not spending too much on your heating bills.
Installed from £2250
The E-Tec NX Alpha combi boiler come with stainless steel heat exchangers and a 7-year warranty. They have a low new boiler cost for what they offer and are made with great components.
Installed from £2250
The Greenstar 4000 combi boiler range has perfect power for medium-sized homes with one bathroom. It’s efficient, compact and well-priced. The Greenstar 4000 combi boiler is Worcester’s best-selling boiler.Greenstar 4000 Combi Boiler.
Installed from £2250
Trustpilot
about 2 months ago
From start to finish, our experience with Boilerhut was outstanding. The entire team was extremely professional, empathetic and understanding throughout the process. They communicated clearly and always checked with us before implementing any changes, ensuring that we remained fully informed and comfortable with every decision. A very special mention must go to Paul, who was absolutely fantastic. His customer service, patience and genuine commitment to helping us could not have been better. The speed of the service was remarkable: there was only one day between signing the agreement and having our new boiler fitted. Even after the installation, the team continued to check in with us to make sure that we were completely happy and that everything was working as expected. Their quotation was extremely reasonable. In fact, it was the lowest we received, but this certainly did not mean compromising on quality. No corners were cut, and the work was completed to an excellent standard. We cannot recommend Boilerhut highly enough. I would happily give them 7 stars out of 5 if Trustpilot allowed it!
about 2 months ago
Fantastic guy called Paul help with the layout and boiler type best suited for us and followed by an impeccable installation quick precise perfect positioning the chap was fantastic very high standard
about 2 months ago
⭐⭐⭐⭐⭐ I couldn't be happier with the service from Boilerhut. From the very beginning, the team was incredibly helpful, knowledgeable, and patient, taking the time to explain the different options and helping me choose the right boiler for my home. Their advice made the whole process straightforward and gave me confidence that I was making the right decision. I chose the Viessmann Vitodens 050 30kW with the Vitotrol 100-E, and I'm absolutely delighted with it. The quality of the boiler is excellent, it's efficient, quiet, and easy to use, and the Vitotrol 100-E is a fantastic addition that makes controlling the heating simple and convenient. If you're looking for honest advice, great customer service, and expert knowledge, I would highly recommend Boilerhut. They made what could have been a stressful decision easy from start to finish.
about 3 months ago
My new boiler was delivered and installed within two days from order to finish. All of the required work (including a local roofer for the flue) was arranged for me and ran like clockwork. The fitters worked so hard and completed the install in one day. All of my old boiler and packaging and packing was removed from site. This was a fantastic experience and I highly recommend Boilerhut.
about 4 months ago
This review is about 6 weeks old, I had a new boiler fitted 14 May 26. Didnt do it straight away as needed to let everything settle down as it important to get it right as its a lot of money to spend. Review has 2 parts both get 5 stars, 1st Boiler Hut, easy to use great range of products sales team Paul was great and helpful, helped me choose right boiler for my needs, Viessman 100 chosen and installed. Great price not as expensive as I was fearing. So far working great, lashings of hot water always available. 2nd part, Installation Team, Cory and Ben turned up approx 0830 and got straight on it, Cory did boiler work (decommision of old boiler and installation of new boiler) whilst Ben attacked my old radiators, taking out 6 old (20 yrs plus) radiators and nasty 10mm microbore piping, replacing with 6 new radiators and new 15mm piping both under floor and surface mounting. All this work completed by 1700hrs same day, guys cleaned up after themselves removed all rubbish and old boiler and rads and pipe work. Can not praise them enough, thanks guys. I would not hesitate to recommend most highly either Boiler Hut or Cory and Ben to anyone who needs a new bolier or fitting, Thanks guys brillant.
about 3 months ago
From Placing the order to completion was a seamless process Well done Paul and Rob and Joe were brilliant all set up and ready to use in a day Well done guys thank you
When it’s time to replace your old back boiler, you’ll have a few choices: a combi boiler, a system boiler, or a regular boiler. While all three options are viable, our recommendation is almost always a combi boiler.
The main reason a combi boiler is the best option for a back boiler swap is the home’s size. Back boilers were typically installed in 2-3 bedroom homes with 1 or 2 bathrooms. A combi boiler can nicely replace the back boiler in terms of power. It can also fit into the airing cupboard where the hot water cylinder was installed.
Choosing a system or regular boiler as a replacement would be more costly. Both options would require a new hot water cylinder, significantly increasing the cost to between £4,000 and £8,000. In contrast, a combi boiler offers a more cost-effective solution.
...We know back boiler installations can be confusing. Explore our answers to some of the most common questions.
How do I choose a new central heating system?
There are different types of heating systems available, so it is important to choose one that is right for your needs. You should consider the size of your home, the number of people who live there, and your budget. You should consult with Boilerhut to get advice on the best type of heating system for your property.
Do you offer a warranty on your boiler replacements?
Yes, we offer a warranty on all of our boiler replacements through the manufacturer. The warranty period varies depending on the type of boiler you choose. In order to keep the warranty valid, you will need to service the boiler correctly and yearly.
We can offer 12-year warranties on some Viessmann boilers as we’re a Viessmann Premium Partner.
Are back boilers expensive to run?
Back boilers are very costly to run, wasting 30% or more of the energy you pay for. Modern condensing boilers in the UK must be at least 90% efficient. We work with Viessmann as their boilers are super efficient and long-lasting. Their Vitodens 200-W is 98% efficient.
What are the cons of a back boiler?
Due to their outdated technology and safety risks, back boilers can have many shortcomings. Which include:
Are back boilers gas?
Most back boilers are gas-powered. However, there are also solid fuel back boilers that run on coal or wood. These tend to be even more inefficient than gas back boilers.
What is a back boiler circulator?
A back boiler circulator is a pump that circulates hot water around your system.
Next-day installation available. Premium boilers with up to 12-year warranties.
Boilerhut installs new boilers, replacement boilers and central heating systems across mainland UK. Our quote process is fully online and takes less than 1-minute. Our team consists of expert Gas Safe-registered engineers who are fully equipped to handle a variety of boiler models and brands. Choose us for:
Trust Boilerhut for an installation and quoting process that puts your ease and comfort first. We conduct our surveys fully online via video call and photos.
This is a back boiler to combi boiler conversion project.
One of Boilerhut’s heating engineers removed a back boiler and hot water cylinder. The back boiler is decommissioned and removed before the installation of a new combi boiler.
The installation includes new copper pipework and a new combi boiler. In this home, the boiler was placed in the attic as there was no room in the kitchen. The back boiler was replaced with a Viessmann Vitodens 050-W 28kW combi boiler.
What are the best boilers available today, and how to choose the best boiler for you? Read through our guide to see the best brands and models available today.
Viessmann vs Worcester Bosch is a debate that’s been developing for a while. Comparing different boiler manufacturers is very important when deciding on a new boiler.
New boiler costs are a bit of a mystery to most people. Boilers should last 10-15 years, some last 25, and back boilers have been known to last 50 years.
More Information About Back Boilers
Further Reading…
