Heat pump annual running costs are roughly 40–70 % lower than storage heaters
If you are choosing between a heat pump and storage heaters, the single biggest difference is the annual running cost. The Energy Saving Trust estimates a typical three-bedroom home with a well-insulated heat pump costs £800–£1,100 per year to run, versus £1,800–£2,500 for storage heaters on standard Economy 7 rates (Energy Saving Trust, 2026). That means a heat pump can cut your heating bill by roughly 40–70 % each year.
Heat pumps cost 40-70% less to run than storage heaters. A typical 3-bed home with a heat pump pays £800-£1,100 annually versus £1,800-£2,500 for storage heaters (Energy Saving Trust, 2026). Your actual savings depend on the heat pump's SCOP and your electricity tariff.
- Heat pumps cut annual heating bills by 40-70% versus storage heaters (Energy Saving Trust).
- Typical heat pump running costs are £800-£1,100 per year for a 3-bed home.
- Storage heaters cost £1,800-£2,500 annually on standard Economy 7 rates.
- Heat pumps produce 3-4 kWh of heat per 1 kWh of electricity (SCOP 2.8-4.0).
- Storage heaters cost £1,500-£3,000 installed; heat pumps cost £7,000-£13,000 after grant.
- Heat pump annual running costs are roughly 40–70 % lower than storage heaters
- Heat pumps deliver 3–4 kWh of heat for every 1 kWh of electricity
- Storage heaters have lower upfront installation costs than heat pumps
- Quick numbers heat pump vs storage heaters comparison table
- Heat pumps require a professional MCS-certified installer; storage heaters do not
- Heat pumps provide consistent whole-home warmth; storage heaters give localised, timed heat
- Heat pumps qualify for the £7,500 Boiler Upgrade Scheme grant; storage heaters do not
- The direct answer to "heat pump vs storage heaters" for most UK homes heat pumps are cheaper to run but cost more upfront
Actual savings depend on the heat pump’s Seasonal Coefficient of Performance (SCOP) and your off-peak electricity tariff (Ofgem, 2026). Storage heater costs are heavily tied to the cheaper night-rate unit price, but daytime top-up use can push bills higher (DESNZ, 2026). If you rely heavily on daytime top-ups, storage heater running costs can climb well above the typical range.
Heat pumps deliver 3–4 kWh of heat for every 1 kWh of electricity
The efficiency difference explains the cost gap. The SCOP of an MCS-certified heat pump typically ranges from 2.8 to 4.0 (MCS Register, 2026). This means for every 1 kWh of electricity you buy, the heat pump delivers 2.8 to 4.0 kWh of heat into your home. Storage heaters have an effective efficiency of approximately 100 % (1 kWh in = 1 kWh out) because they convert electricity directly to heat with no ambient energy capture.
This ratio means a heat pump produces 3–4 times more heat per unit of electricity than a storage heater (Energy Saving Trust, 2026). Over a full heating season, that efficiency advantage translates directly into lower bills, even if you pay a higher daytime rate for the heat pump’s compressor.
Storage heaters have lower upfront installation costs than heat pumps
Initial cost is where storage heaters win. A full storage heater system (6–8 units) costs £1,500–£3,000 including installation, whereas an air-source heat pump system costs £7,000–£13,000 after the £7,500 Boiler Upgrade Scheme grant (GOV.UK, 2026). The grant is available in England and Wales from April 2022 onward, reducing the net upfront price by £7,500 (DESNZ, 2026).
Storage heaters require no external compressor or pipework, so installation is typically a one-day job. Heat pumps require outdoor unit placement, a buffer tank, and potentially radiator upgrades if your existing radiators are undersized for lower flow temperatures. Those extras can add £1,000–£3,000 to the heat pump installation cost.
Quick numbers heat pump vs storage heaters comparison table
| Metric | Heat Pump (Air-Source) | Storage Heaters |
|---|---|---|
| Annual running cost (typical 3-bed home) | £800–£1,100 (EST, 2026) | £1,800–£2,500 (EST, 2026) |
| Upfront cost (after grant for heat pump) | £7,000–£13,000 (GOV.UK, 2026) | £1,500–£3,000 |
| Efficiency (kWh heat per kWh electricity) | 2.8–4.0 (MCS Register, 2026) | ~1.0 |
| Typical SCOP | 2.8–4.0 (MCS Register, 2026) | N/A |
| Lifespan (years) | 15–20 (EST, 2026) | 10–15 |
| Annual CO2 savings vs gas boiler (kg) | ~1,500–2,500 (DESNZ, 2026) | ~0 (electric direct) |
Heat pumps require a professional MCS-certified installer; storage heaters do not
Heat pump installations must be done by an MCS-certified contractor to be eligible for the Boiler Upgrade Scheme grant (GOV.UK, 2026). The MCS certification ensures the installer follows quality standards and that the system is designed and commissioned correctly. Storage heaters can be installed by any qualified electrician registered with a competent person scheme (e.g., NICEIC, NAPIT) for Part P compliance.
After installation, heat pumps must be registered on the MCS database to prove eligibility for the grant. Storage heaters require no central registry. If you plan to sell your home, a heat pump with MCS certification may add value, while storage heaters carry no such certification requirement.
Heat pumps provide consistent whole-home warmth; storage heaters give localised, timed heat
Heat pumps operate continuously at lower flow temperatures (35–50°C) to maintain a steady indoor temperature, reducing draughts and cold spots (Energy Saving Trust, 2026). Storage heaters release stored heat from overnight charging, which can lead to overheating in the morning and cooling by evening unless manually controlled via input/output settings.
Heat pumps can be paired with smart thermostats for zone control, allowing you to heat different rooms to different temperatures at different times. Storage heaters typically have individual unit controls, so you adjust each heater manually. This makes heat pumps more convenient for households that want consistent warmth throughout the day without fiddling with individual controls.
Heat pumps qualify for the £7,500 Boiler Upgrade Scheme grant; storage heaters do not
The Boiler Upgrade Scheme (DESNZ, 2026) provides a fixed £7,500 grant for air-source heat pumps installed by MCS-certified contractors in England and Wales. This grant is deducted from the installation cost at the point of sale, so you pay the net price. Storage heaters are not eligible for any central government grants as of 2026.
Homeowners in Scotland may access separate funding via Home Energy Scotland (up to £7,500 for heat pumps); storage heaters are not covered. If you live in a flat or a home without outdoor space for the heat pump’s external unit, you cannot claim the grant, and storage heaters may be your only practical option.
The direct answer to “heat pump vs storage heaters” for most UK homes heat pumps are cheaper to run but cost more upfront
For a typical semi-detached house with cavity-wall and loft insulation, a heat pump saves £800–£1,400 per year versus storage heaters (Energy Saving Trust, 2026). Payback period (after grant) is 5–10 years for heat pumps, depending on current storage heater running costs and future electricity prices (Ofgem, 2026).
If your home is poorly insulated or you cannot install external pipework, storage heaters remain the lower-cost entry point. The decision comes down to how long you plan to stay in the property and whether you can afford the upfront investment for long-term savings. compare heat pump running costs vs gas boiler Boiler Upgrade Scheme eligibility checklist
Frequently Asked Questions
Yes, heat pumps are 40-70% cheaper to run. The Energy Saving Trust estimates a heat pump costs £800-£1,100 per year versus £1,800-£2,500 for storage heaters in a typical 3-bed home.
A heat pump delivers 3-4 kWh of heat per 1 kWh of electricity (SCOP 2.8-4.0), while storage heaters are 100% efficient (1 kWh in = 1 kWh out). According to the MCS Register, this means heat pumps produce 3-4 times more heat per unit.
Storage heaters cost £1,500-£3,000 for a full system (6-8 units). An air-source heat pump costs £7,000-£13,000 after the £7,500 Boiler Upgrade Scheme grant from GOV.UK.
Yes, storage heaters use 3-4 times more electricity to produce the same amount of heat. Ofgem confirms that heat pumps capture ambient energy, making them far more efficient per kWh.
A heat pump is better for long-term savings, cutting bills by 40-70%. However, storage heaters have a lower upfront cost. The Energy Saving Trust recommends a heat pump for well-insulated homes with off-peak tariffs.
