iHeat: Boiler Installation Review 2025
Update: August 2026
After comparing several options, iHeat* is our recommended new boiler installation provider in August 2026.
We found their fixed price, online quotation system very easy and quick to navigate through, and got the most competitive price out of all the providers we tested.
A good range of boilers were available to select from with warranty and after-care arranged and confirmed by iHeat*.
No hidden costs were added and a financing option to pay monthly was available to apply for, if required.
A next day installation slot was available and the communication was efficient.
To get a wider range of opinions, a high Trustpilot rating indicates most customers had a very positive installation experience. As of August 2026, iHeat are also a Which? Trusted Traders approved service.
Visit iHeat* for a no-obligation and instant online quote.
Choosing the Best Boiler for Your Home
Upgrading your boiler is an important decision that requires careful consideration of your needs, budget and the options available. With so many boiler models on the market, it can feel overwhelming to weigh up the pros and cons of each system.
That’s where impartial advice can prove invaluable. In this article, we’ll walk through the key factors to bear in mind when choosing a new boiler, providing real-world examples to help you identify the best system for your property.
Combination (Combi) Boilers
Combination or “combi” boilers are the most popular boiler choice in UK homes. They provide hot water on demand rather than requiring a cylinder and cold water storage tank. This makes them an excellent space-saving option. Key benefits include:
- Compact size frees up storage space
- Deliver hot water instantly when you turn on the tap
- Generally cheaper to install than traditional systems
Drawbacks can include limited water flow rate and suitability depends on the size and layout of your property. Overall though, combis offer a versatile solution for many homes.
Regular or Conventional Boilers
Regular boilers operate with a separate cylinder and cold water storage tank. Hot water is heated in the tank before being piped to radiators and taps when required. Benefits include:
- Provide robust heat and hot water supplies
- Ideal for larger properties
- Cylinder allows more storage capacity
Downsides are mainly the larger footprint required. Regular boilers suit homes with space for tanks and cylinders.