This is one of the most complete boiler buying guides on the internet and helps you to find the best boilers suitable for the size of your property. Before you buy a combi boiler online, it’s worth taking a look. We explain the different types of boilers available:
Open Vent Boilers (also called regular or conventional boilers)
We look at which boiler is best for the following type of properties:
Flat/1-2 Bedroom House + 1 Bathroom
Semi-Detached, Mid or End Terraced House – 3 Bedrooms – 2 Bathrooms
Before you buy a combi boiler online, it’d be a good idea to look at this boiler comparison post comparing two of the best combi boiler brands in the UK. Both brands have been given the “Best Buy” award across several years in 2017, 2018 and 2019. But there’s a massive difference underneath the outer shells which make one of these boilers a definitive winner in terms of reliability, durability and efficiency.
Worcester Bosch have been the market leaders in the UK when it comes to residential boilers. Viessmann are world leaders in the commercial boiler space for a long time now, heating large stadiums, buildings, factories, royal palaces etc. around the world. Dipping their toes in the residential boiler space, they’ve brought their expertise and more to this arena. We review both brands in terms of energy efficiency, durability and reliability of internal components.
Combi Boilers with a Thermal Store for Larger Properties
Before you buy a combi boiler online, it would be prudent to consider storage combi boilers. In simple terms, a storage combi boiler has a hot water storage cylinder housed within the boiler unit itself. Storage combi boilers used to be floor standing larger boilers, but by leveraging latest technology and innovative thinking, some manufacturers have pioneered wall-mounted, compact storage combi boilers.
Smaller sized storage combi boilers are well suited to larger apartments or flats with a family where there is no space for Open Vent or System Boilers, but the residents have high hot water demands. For example, if everyone in your home has to get ready and leave the house at around the same time, whether they’re going to work or to school, it helps to have a boiler capable enough to deliver hot water for bathrooms and sinks and washbasins simultaneously.
When you buy a combi boiler online, it’s good to do your research beforehand. Combi is short for combination, as explained in our previous post What is a Combi Boiler. They combine home heating and on-demand hot water within the same compact unit. In direct contrast, Open Vent (also called Regular, Standard or Conventional) boilers and System Boilers heat water that’s stored in a tank. How a combi boiler works (at least a modern combi boiler) is:
They have two heat exchangers inside them;
1. A primary heat exchanger. (For central heating)
2. Secondary plate heat exchanger. (For hot water)
Primary heat exchanger heats and recycles the water that goes through the pipes into the radiators.
Secondary plate heat exchanger heats up the hot water that goes into your taps.
Very happy to supply me with any information on the boilers I wanted. 2 engineers completed the job with minimum disruption. I highly recommend the company. Very professional, honest, and reliable. Best of all was the price. Thank you all at Boilerhut.
Really, really excellent company, highly recommended – went over and above the call of duty to fix us up with a boiler in the coldest of weather. Wonderful service and very happy to recommend the entire experience.
All of the plumbers I spoke to for quotes, all tried to tell me what I wanted, except Boilerhut. they listened to what I wanted. Old boiler out, new boiler in, exceptional standards of workmanship. I cannot praise them enough
Professional, Quick & Efficient
Boilerhut provided a professional service from beginning to end. The assessment of my boiler was thorough and quick. Due to it being so bad, Boilerhut managed to get my new boiler fitted the next day. The fitters were pleasant,clean and quick. I highly recommend Boilerhut.
Handover and Induction on Boiler Usage and Best Practice
*Final Price will depend on Boiler Model and Extras
FREE Help & Advice
If you are new to the world of combi boilers because you haven’t had to bother with changing your boiler in the last 2 decades, we understand your pain. Which is precisely why we’ve tried our best to make it easy for you to buy a combi boiler online. If you want to understand what are combi boilers and how do they work, we’ve done in-depth factual articles on both on our blog earlier. You can read either article by clicking on the links below:
UK Wide Network of Gas Safe and OFTEC Registered Installers
Quality and Safety
Boilerhut adhere to safety best practices and employ only Gas Safe Registered Engineers and Installers. We also make sure that their Gas Safe certification is up-to-date, and hasn’t expired before every job. When you buy a combi boiler online with us, every boiler is installed with the utmost care, adhering to the latest building regulations and safety guidelines. You as a customer then need to have your boiler serviced on recommended annual service dates by a Gas Safe registered company or engineer. That can also help you preserve manufacturer’s warranty.
Extended Warranties & After Sales Service
Because Boilerhut are Viessmann Premium Partners, on top of getting the best possible installation of your boiler, you also get extended warranties: 7-10 Years on Parts and Labour, and 10 Years Warranty on the patented Inox-Radial Stainless Steel Heat Exchanger. In case of a technical fault, we will have an engineer at your doorstep within 24-48 hours.
Use the Latest Technology to Improve Energy Efficiency
When you buy a combi boiler online with Boilerhut, on top of saving money on your energy bills with a brand new high efficiency boiler, you get the choice of modern tech goodies included with your boiler installation. All the thermostats listed below are Boiler Plus Legislation 2018 Compliant. You can pick and choose from any of the following: