System boilers are perfect for homes that require more hot water than a combi boiler can provide. Boilerhut supplies and installs highly efficient system boilers suitable for all properties.
Premium quality, energy-efficient system boiler from Boilerhut, backed by a manufacturer’s warranty.
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On average, a new system boiler installation will cost you £2,500 to £3,400. This is based on a like-for-like boiler replacement, retaining the existing unvented hot water tank. A system boiler installation will also include:
This type of boiler is ideally suited for:
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.
Some of the main benefits of system boilers include:
Speak to our expert local installers to determine if a system boiler replacement is right for your home. Choose from a complete range of LPG, oil, and gas boilers, with professional installation.
The Viessmann Vitodens 100-W System Boiler is a compact, high-efficiency gas condensing wall-mounted unit featuring a 94% ErP efficiency rating, an Inox-Radial stainless steel heat exchanger, and integrated Wi-Fi connectivity.
The Viessmann Vitodens 200-W System Boiler is a high-efficiency wall-mounted gas condensing heater offering up to 98% efficiency, a MatriX-Plus burner, and Lambda Pro combustion control. It requires a separate domestic hot water cylinder.
The Worcester Bosch Greenstar 8000 Life System Boiler is a high-efficiency gas-fired heating unit offering up to 94% efficiency, a 30kW to 35kW output range, and an extended guarantee.
A high-efficiency oil-fired heating unit achieving an ErP A+ energy rating, low NOx emissions (57 mg/kWh), and a durable stainless steel heat exchanger
The Worcester Greenstar Danesmoor System oil-fired boiler is an A-rated, floor-standing heating appliance available in three primary output ranges designed to work efficiently with stored hot water cylinders.
The Worcester Bosch Greenstar i System LPG Boiler is a high-efficiency, wall-mounted heating appliance available in 18kW, 25 kW and 32 kW outputs designed to run on liquefied petroleum gas (LPG) for homes without mains natural gas.
Next-day installation available. Premium boilers with up to 12-year warranties.
Trustpilot
about 3 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 3 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 3 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 4 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 5 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 4 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
We know system boiler installations can be confusing. Explore our answers to some of the most common questions.
What is a system boiler?
System boilers work on a closed heating system, and only require a boiler and an unvented hot water cylinder for storing hot water.
Like conventional boilers, system boilers heat your central heating system by producing hot water for a storage cylinder. They do this by burning fuel in a combustion chamber, which warms a heat exchanger (typically a conductive, metal component), transferring heat to the water.
However, unlike conventional boilers, system boilers don’t require an exterior pump and a header tank, as all of the heating and hot water components are built into the boiler unit.
How do system boilers work?
Here’s a summary of how a system boiler works to heat your water and home:
How much can I save with a new system boiler?
According to the Energy Saving Trust, you could reduce your energy bills by £315 annually by replacing your inefficient current boiler in your detached house.
The new system should be an A-rated, energy-efficient condensing system featuring a programmer, room thermostat, and thermostatic radiator controls (TRVs)*.
What are the disadvantages of a system boiler?
While system boilers offer many benefits, there are some downsides to be aware of, including:
Explore our advice page for expert guidance on choosing new boilers, costs, power requirements, installation, and more.
Boilerhut supplies and installs premium boilers across the UK. Our experts are all Gas-Safe registered engineers and installers, and pride themselves on delivering professional and efficient service.
As an official partner of several established brands, we offer manufacturer-backed warranties on our products and lifetime service plans for peace of mind and customer satisfaction. Some of our system boilers for sale include:
These brands produce system boilers which offer excellent energy efficiency, further increased with smart thermostat technology.
Trust Boilerhut for your system boiler installation and maintenance. Receive free quotes, fixed prices, reliable service, and ongoing support.
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.
