Researching your central heating boiler options? Review our guide on central heating boiler prices and costs before choosing your new model and hiring a professional boiler engineer to install it for you.

How much does a Central Heating Boiler cost?
Average cost in UK: £1500
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£800
LOW COST
£1500
AVG COST
£3000
HIGH COST
The average cost for a Central Heating Boiler is £1500. You are likely to spend between £800 and £3000 total. Exact price may vary depending on your area and project details.
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Central heating boiler price summary:

Price range = £800 to £3,000

Average cost = £1,500

Best/cheapest price = £800

Central heating boiler prices will ultimately depend on the size of your house and your heating requirements. There are two main types of central heating boilers:

1. Conventional heat-only open-vent boilers

This type of central heating boiler is the most old fashioned of all heating systems. They provide heat from the radiators directly and produce hot water, which is stored in a separate cylinder. The cold water is stored in a cistern and there is also the requirement for a separate expansion cistern. As you can imagine, this type of boiler is not really used these days as it takes up a lot of extra space.

2. System heat-only boilers

This type of central heating boiler works on the same principle of stored water. However, most of the components of the heating and hot-water system are built into the boiler, and it removes the need for a feed and expansion cistern. This is perfect for a family which needs lots of space for storage and has a high demand for hot water.

Central heating boiler replacement costs on average around £2,500, according to the Energy Saving Trust. Gas central heating boiler prices tend to be cheaper as gas in the most common type of fuel used for boilers, but other boiler types are available.

Below is a list of central heating boiler prices, compiled from various makes:

  • Baxi Solo 30 HE A
    Type:  Heat only
    Fuel:  Gas
    Heat Output (kW):  30
    Price:  £830
  • Glow-Worm Flexicom 35hx
    Type:  Heat only
    Fuel:  Gas
    Heat Output (kW):  35
    Price:  £1,040
  • Grant Vortex Eco Outdoor 26-35
    Type: Heat only
    Fuel: Oil
    Heat Output (kW): 26-35
    Price: £1,600
  • Ideal Logic Heat 12
    Type:  Heat only
    Fuel:  Gas
    Heat Output (kW): 12
    Price:  £590
  • Potterton Promax 30 HE Plus
    Type:  Heat only
    Fuel:  Gas
    Heat Output (kW):  30
    Price:  £850

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