Heat Only Boilers

Choose reliable performance with our range of gas heat only boilers. Also known as regular or conventional boilers, these systems are ideal for properties with stored hot water cylinders and older pipework layouts. We stock boilers from trusted brands such as Worcester, Intergas, Baxi and more. These heat only boilers are built for long-term efficiency and straightforward maintenance. Whether you're replacing an existing unit or fitting out a full system with tanks and controls, you'll find dependable options to suit domestic and light commercial jobs. Pair with flue kits, heating controls and cylinders to get your full heating system setup in one go.

Q: What is a heat only boiler, and how does it work?

A: A heat only boiler - also known as a regular or conventional boiler - provides heating for radiators and hot water by filling a cylinder with heated water. It requires a hot water tank (usually in an airing cupboard) and cold water tanks (often in the loft), making it ideal for homes with existing open-vent systems.

Q: What’s the difference between a heat only boiler, system boiler, and combi boiler?

A: 

• Heat only boilers need tanks and a cylinder – they’re suited to traditional heating setups

• System boilers also use a hot water cylinder but don’t need a separate cold water tank

• Combi boilers provide heating and hot water on demand, with no tanks or cylinders.

If you already have tanks and want to avoid changing your whole setup, a heat only boiler is often the most cost-effective replacement.

Q: Which heat only boiler brands do you stock?

A: We offer a wide range of gas and LPG heat only boilers from trusted names, including:

• Baxi – including popular models like the Baxi 418 

• Worcester – known for their Greenstar heat only range

• Vaillant – including ecoFIT Pure and ecoTEC Plus options

• Ideal Heating – including Logic+ ranges

• Main Heating – their Eco compact ranges are solid value options for trade installs

Q: What kW size heat only boiler do I need?

A: The right boiler size depends on your property size and hot water demand.

Always consult your installer or heating engineer to size your boiler correctly based on radiators, insulation, and hot water needs. The last thing you want is to be running out of hot water all the time because you’ve gone too small.

Q: How much does a heat only boiler cost?

A: Boiler prices vary depending on brand, output, and features. As a guide:

• Entry-level models start from around £700

• Higher output or premium models can reach £1,000–£1,500+

Check product listings for current pricing, and don’t forget to factor in installation and cylinder/tank compatibility.

Q: Are heat only boilers any good?

A: Yes,  heat only boilers continue to be a reliable, long-lasting option when used in the right type of home. They’re especially well-suited for:

• Properties with high hot water demand

• Homes with older radiator systems

• Installations where combi boilers aren’t suitable due to low pressure

With proper installation and maintenance, they can last 10–15 years or more.

Q: Do you offer delivery on heat only boilers?

A: Yes, we offer UK-wide delivery on all heat only boilers. You can also click & collect from your local branch or speak to our team for help with sizing, flue options, and system compatibility.