Compare boilers, heat pumps, and heating systems for UK homes. Running costs, government grants, sizing guides, and advice on switching from gas to renewable heating.
506 articles
Air source heat pumps now heat 550,000 UK homes, up from 310,000 in 2023 (MCS data, reported by DESNZ, 2026) If you are weighing up whether to replace your gas boiler with an air source heat pump in 2026, you are not alone. Government figures show installations have surged 77% in just three years, driven […]
Heat pumps in the UK last 15–20 years on average A well-installed heat pump in the UK should give you 15 to 20 years of service before needing replacement. Ground-source heat pumps, which use buried pipework, typically last 20 to 25 years because the compressor unit is indoors and protected from weather. Air-source heat pumps, […]
UK home heating currently accounts for 17% of national carbon emissions (DESNZ, 2026) The UK housing stock relies heavily on natural gas boilers, with approximately 23 million gas boilers still in operation according to DESNZ 2026 housing data (DESNZ, 2026). Heating is the single largest source of household carbon emissions, dwarfing lighting and appliance use […]
The Boiler Upgrade Scheme offers £7,500 off a heat pump in 2026 – here is who qualifies If you are looking at heat pump grants in the UK for 2026, the main option is the Boiler Upgrade Scheme (BUS). This government programme provides a flat £7,500 grant for both air-source and ground-source heat pumps in […]
The 2026 UK heat pump installation cost range is £7,000–£13,000 The Department for Energy Security and Net Zero (DESNZ) reported in its 2026 heat pump cost analysis that the median installed cost for an air-source heat pump in a typical UK home is £10,500 (DESNZ, 2026). The full range for a standard installation is £7,000 […]
The average cost to replace a gas boiler in the UK in 2026 is £2,500–£4,000 If your existing boiler is over 12 years old, breaking down frequently, or rated D or below for efficiency, a replacement is likely the most cost-effective option. The price you pay depends on the boiler type, the complexity of the […]
Average UK homeowner spends £1,200–£2,800 installing a new gas boiler versus £7,000–£14,000 for an air-source heat pump The upfront cost difference between a gas boiler and a heat pump is the first fact most homeowners search for. A new gas boiler installation in 2026 typically costs between £1,200 and £2,800, including the boiler unit, labour, […]
Ofgem’s January 2026 price cap sets electricity at 24.5p/kWh and gas at 6.0p/kWh (Ofgem, January 2026). A typical 3-bedroom semi-detached home uses around 12,000 kWh of heat per year. This article compares the annual running costs of a gas boiler and a heat pump under these rates. Quick Answer In 2026, a heat pump costs […]
The main reason heat pumps need larger radiators than gas boilers If you are switching from a gas boiler to a heat pump, the radiators in your home will almost certainly need to change. Heat pumps operate at lower flow temperatures than gas boilers, which means each radiator transfers less heat into the room. Quick […]
A Heat Pump Can Replace Most Boilers, But the Economics Depend on Your Home’s Heat Loss and Existing System If you are considering switching from a gas or oil boiler to a heat pump, the first question is whether the technology can physically work in your home. The core requirement under the MCS 020 standard […]
The Most Important Fact About Heat Pumps in Victorian Terraces The biggest barrier to installing a heat pump in a Victorian terrace is not the heat pump itself but the building fabric. Most Victorian terraces have solid brick walls, single-glazed sash windows, and suspended timber floors that lose heat much faster than a modern home […]
Heat Pump vs Gas Boiler for New Build UK If you are building or buying a new home in the UK in 2026, the choice between a heat pump and a gas boiler is no longer a simple preference. Building regulations have changed, and the decision is now heavily influenced by law rather than personal […]
The average heat pump produces 40–60 dB, comparable to a refrigerator or quiet conversation If you are considering a heat pump, noise is likely one of your main concerns. A properly installed air-source heat pump typically operates at 40–60 dB(A) at 1 metre, which is similar to a modern fridge (40 dB) or a quiet […]
Hybrid heat pump systems cost £8,000–£14,000 installed (2026 prices) Deciding whether to replace your gas boiler with a hybrid heat pump system involves weighing upfront costs against long-term savings. In 2026, the typical installed cost for a hybrid system combining a gas boiler with an air-source heat pump ranges from £8,000 to £14,000 (Energy Saving […]
A heat pump system works by using electricity to move heat from outside air, ground or water into your home, rather than burning fuel to generate it. The Energy Saving Trust explains that for every 1 kWh of electricity used, a well-installed air source heat pump can deliver 2.5 to 3 kWh of heat (Energy […]
Repressurising a boiler typically costs between £0 and £120 in 2026, with the average professional callout settling around £80 to £100. If you do it yourself, the cost is zero because you only need to turn the filling loop valves (Energy Saving Trust, 2026). Key Takeaways 1DIY repressurising costs £0 using the filling loop. 2Professional […]
The short answer is yes: most UK boiler warranties, including those from Worcester Bosch, Vaillant and Baxi, require annual servicing by a Gas Safe Registered engineer to remain valid. The Energy Saving Trust confirms that skipping an annual service can void your manufacturer warranty and leave you liable for the full cost of repairs (Energy […]
For a UK combi boiler in winter, set the flow temperature to 60°C for radiators and 50°C for hot water. This balances comfort, efficiency and condensation prevention, according to the Energy Saving Trust (Energy Saving Trust, 2026). Key Takeaways 1Set radiator flow to 60°C for 94% condensing efficiency. 2Hot water at 50°C prevents scalding and […]
The typical UK gas boiler lasts between 10 and 15 years, with 12 years being the average lifespan cited by the Energy Saving Trust (Energy Saving Trust, 2026). After this point, efficiency drops and repair costs often exceed replacement value. Key Takeaways 1Average UK gas boiler lifespan is 12 years per Energy Saving Trust. 2Annual […]
Your boiler is losing pressure overnight because of a leak in the sealed heating system, typically a dripping radiator valve or a pipe joint, not a boiler fault. A sealed system should hold stable pressure between 1.0 and 1.5 bar when cold, and losing more than 0.2 bar over 8 hours indicates a leak (GOV.UK, […]
Heat pumps are installed in roughly 1 in 20 homes in the UK, with around 550,000 units in operation as of early 2026 (GOV.UK, 2026). This share is rising rapidly but remains low compared to gas boilers, which still heat about 80% of homes. Key Takeaways 1 in 20 UK homes has a heat pump […]
A heat pump works by extracting heat from outside air, ground or water and transferring it indoors using a refrigeration cycle, achieving efficiencies of 300-400% compared to a gas boiler’s 90%. The Energy Saving Trust confirms that for every 1kWh of electricity used, a heat pump can deliver 3-4kWh of heat (Energy Saving Trust, 2026). […]
A heat pump works by extracting heat from the outside air, ground, or water and transferring it indoors, using electricity to power the process rather than burning fuel. The UK government states that a typical air source heat pump can deliver 3–4 kWh of heat for every 1 kWh of electricity consumed (GOV.UK, 2026). This […]
Heat pumps use the same vapour-compression cycle as your fridge, but reversed A heat pump does not generate heat by burning fuel. Instead, it moves heat from one place to another, using the same basic technology as your refrigerator. The key difference is that a fridge extracts heat from inside the box and dumps it […]
A new combi boiler costs between 2,000 and 3,500 pounds installed, including flue and controls. System boilers with a hot water cylinder cost 2,500 to 4,500 pounds. Prices vary by brand, output size, and complexity of the installation.
At 2026 energy prices, an air source heat pump with a COP of 3 costs roughly the same as a gas boiler to run. With electricity at 24.5p per kWh and gas at 7.2p per kWh, the heat pump produces heat at about 8.2p per kWh compared to gas at around 8p per kWh including boiler efficiency. The 7,500 pound BUS grant makes the overall economics favourable.
Yes, but older houses often need some preparation. The key requirements are adequate insulation, possibly larger radiators or underfloor heating for lower flow temperatures, and sufficient outdoor space for the external unit. A professional heat loss survey will determine what upgrades are needed.
The BUS provides 7,500 pounds towards installing an air source or ground source heat pump. Your home must have an EPC, be replacing a fossil fuel heating system, and use an MCS-certified installer. The property must be in England or Wales and you cannot have previously claimed a renewable heat incentive.
Air source heat pumps typically last 15 to 20 years, while ground source heat pumps can last 20 to 25 years. A well-maintained gas boiler lasts 10 to 15 years. Heat pumps have fewer moving parts and require less maintenance.
How Heat Pumps and Gas Boilers Compare on Running Costs An air source heat pump (ASHP) produces 3-4 units of heat for every unit of electricity consumed, measured as a Coefficient of Performance (COP). At current UK energy prices with electricity at 24.5p/kWh and gas at 6.4p/kWh, a well-installed heat pump costs approximately the same […]
Replacing a boiler is one of the most significant home improvement decisions a UK homeowner will make, and the emergence of hydrogen-ready boilers has added a genuinely confusing new dimension to what was already a complicated choice. These products are now widely stocked by installers across the country, with major brands including Worcester Bosch, Baxi, […]
Understanding the Difference Between Ground Source and Air Source Heat Pumps Heat pumps are now one of the most discussed home heating technologies in the UK, yet many homeowners remain unsure about the fundamental differences between the two main types. Choosing the wrong system, or installing either type in the wrong home, can result in […]
The Boiler Upgrade Scheme is one of the most significant financial incentives available to UK homeowners wanting to swap their fossil fuel boiler for a low-carbon heating system, offering grants of up to £7,500 towards the cost of installation in 2026. ⚡ Quick Answer The Boiler Upgrade Scheme is a UK Government grant programme administered […]
Heating bills remain one of the biggest household expenses across the United Kingdom, and for most homeowners, the central heating system runs on a programme set years ago that bears little resemblance to how the household actually lives today. A smart thermostat is one of the most accessible, low-cost upgrades available to address this directly, […]
Replacing a boiler is one of the largest single home improvement purchases most UK homeowners will make, and the range of prices quoted by different companies can be genuinely bewildering. Understanding what drives the cost, and what those costs actually cover, puts you in a far stronger position for getting a fair deal. ⚡ Quick […]
