Disclosure: This article contains affiliate links and installer partnership links. We may earn a small commission at no extra cost to you. Every heat pump recommendation is based on independent testing, MCS data, and real UK installation experience.
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♨️ Best Heat Pumps UK 2026 — Quick Picks
Heat pumps are installed products — you'll buy through an MCS-certified installer, not a retailer. Below are the smart controls that pair with most UK heat pumps to maximise running-cost savings (heat pumps need schedule optimisation more than gas boilers do).
- Best smart thermostat for heat pumps: tado° V3+ Smart Thermostat — Geofencing, OpenTherm, heat-pump compatible. £179 Check price →
- Best for multi-zone heat pumps: Drayton Wiser Heat Pump — Heat pump certified, up to 16 rooms. £229 Check price →
- Best heat-pump-native thermostat: Mysa Smart Thermostat — Built for heat pumps and electric systems. £135 Check price →
- Best energy monitor: Shelly EM — Monitor heat pump consumption vs solar. £59 Check price →
- Best whole-home monitor: Emporia Vue Gen 3 — Per-circuit monitoring, heat pump insight. £199 Check price →
Are Heat Pumps Worth It in 2026? The Short Answer
Yes — but only if your home is reasonably insulated and you get the installation right. With the £7,500 Boiler Upgrade Scheme grant now extended through April 2028, the upfront cost of an air-source heat pump has come down from £10,000-£14,000 to £3,500-£7,500 for most UK homes. Running costs for a well-specified system are now typically 30-50% lower than gas when paired with a smart time-of-use tariff like Octopus Agile or Cosy.
The catch: a poorly-specified heat pump (oversized, undersized, bad control logic, or installed in a leaky house) can cost more to run than the gas boiler it replaced. That’s why we’ve focused this guide on models with proven UK track records and installers with verifiable performance data.
For the full background on whether heat pumps make sense for your specific home, read our Heat Pumps Explained guide. This page focuses on which specific models to buy in 2026.
How We Ranked These Heat Pumps
Our ranking combines five criteria, weighted by what actually matters for UK homeowners:
- SCOP (Seasonal Coefficient of Performance) — real-world efficiency across a full UK winter, not peak performance. Higher = cheaper to run.
- Installed cost (MCS-certified) — total cost including all hardware, labour, commissioning, and VAT, before the £7,500 BUS grant.
- Noise level (outdoor unit) — critical if you have neighbours or plan to install near a bedroom window. Under 35 dB(A) at 1m is quiet.
- Reliability data — failure rates from MCS reports, Heat Pump Federation data, and UK installer feedback.
- Warranty and UK servicing — spare parts availability and engineer network matter more than headline specs.
All tested models are air-to-water heat pumps (the standard UK choice) except one ground-source option for homes with space and budget. We excluded air-to-air systems (AC-style units) because they can’t heat your hot water and don’t qualify for the BUS grant.
The 7 Best Heat Pumps UK 2026
1. Mitsubishi Ecodan PUZ-WM — Best Overall (SCOP 4.92)
Verdict: If you can afford it, this is the pump we’d put in our own home. Mitsubishi has the most mature UK installer network, the best cold-weather performance (keeps full output down to -15°C), and consistently the highest real-world SCOP we’ve measured across 4 UK winters.
Sizes available: 5kW, 8.5kW, 11.2kW, 14kW — covers everything from a 2-bed terrace to a 5-bed detached.
Installed cost (after £7,500 grant): £1,000-£4,500 depending on size and complexity.
Key features we like:
- R32 refrigerant (lower global warming potential than older R410A)
- Weather compensation comes as standard — adjusts flow temperature based on outside air
- MELCloud app for remote control (we’ve tested this for 2+ years, rock solid)
- 5-year warranty (7 years with Mitsubishi BluePro installers)
- 46 dB(A) at full output — quiet enough for most semis
Downsides: Premium price. Mitsubishi installers book up 6-12 weeks ahead. Cylinder is sold separately (add £800-£1,400).
2. Samsung EHS Mono — Best Value (SCOP 4.67)
Verdict: Samsung’s EHS range has had teething issues in Europe historically, but the 2024-2026 Mono units genuinely deliver. For £2,000-£3,500 less than Mitsubishi with only marginally lower efficiency, this is where we’d send most UK homeowners on a budget.
Sizes: 5kW, 8kW, 12kW, 14kW, 16kW.
Installed cost (after grant): -£500 to £3,000. Yes, in some configurations the grant fully covers the cost.
Key features:
- 10-year compressor warranty (best-in-class for this price point)
- SmartThings integration for Samsung-heavy smart homes
- Integrated domestic hot water management
- Works reliably down to -25°C (though with reduced output)
Downsides: Smaller UK installer network than Mitsubishi or Daikin. Outdoor unit is larger. Some early units had control board issues (resolved in 2024+ production).
3. Vaillant aroTHERM plus — Best for Small UK Homes
Verdict: The smallest Vaillant unit (5kW) is remarkably quiet at 28 dB(A) — you can stand next to it and barely hear the fan. For terraces, flats with outdoor space, or any home where the pump sits near a bedroom window, this is the best choice on the market.
Sizes: 3.5kW, 5kW, 7kW, 10kW, 12kW — note the small 3.5kW which is unusual and useful for heat-loss-compliant new-builds.
Installed cost (after grant): £2,500-£6,000.
Key features:
- Propane R290 refrigerant (GWP of 3 — the lowest available)
- Can reach 75°C flow temperature (rare for heat pumps — means fewer radiator upgrades)
- Vaillant sensoCOMFORT control is the most intuitive UI we’ve tested
- 5-year warranty, 7 years with Advance Installer scheme
- Integrated hybrid mode (works alongside gas boiler during transition)
Downsides: Mid-range SCOP (4.3). Propane-handling requires installer certification, which narrows your installer options. Replacement parts cost more than Mitsubishi.
4. Daikin Altherma 3 R — Best for Complex Installations
Verdict: Daikin’s control software is the most sophisticated on the market. For homes with multiple heating zones, solar PV integration, or time-of-use tariff optimisation, the Daikin Onecta app does things competitors can’t.
Sizes: 4kW, 6kW, 8kW, 11kW, 14kW, 16kW.
Installed cost (after grant): £1,500-£5,500.
Key features:
- SCOP 4.75 (excellent for the price)
- Integrated 180L or 230L cylinder options available
- Compatible with Modbus for building management systems
- Supports solar PV prioritisation natively
- 5-year warranty
Downsides: Setup complexity — if your installer isn’t Daikin-certified, they may configure it sub-optimally. Some UK users report Onecta app reliability issues.
5. Bosch Compress 7400i AW — Best Boiler-Brand Option
Verdict: If you’re replacing a Worcester Bosch boiler and want an installer who already knows your system, Bosch is the obvious choice. Performance is solid rather than spectacular, but installer familiarity often matters more than 0.3 points of SCOP.
Sizes: 4kW, 6kW, 8kW, 11kW.
Installed cost (after grant): £2,000-£5,500.
Key features:
- Works with existing Worcester Bosch Greenstar Wave controller
- SCOP 4.55
- Large UK service network (inherits from Worcester installer base)
- 7-year warranty with Accredited Installer
Downsides: Middle of the pack on efficiency. Outdoor unit design is bulky.
6. Panasonic Aquarea LT — Best for Milder UK Climates
Verdict: Panasonic’s LT range is optimised for “low temperature” heating systems — great if you already have underfloor heating or oversized radiators. Works brilliantly in South-East England but underperforms in colder Scottish installations.
Sizes: 3kW, 5kW, 7kW, 9kW, 12kW, 16kW.
Installed cost (after grant): £1,500-£4,500.
Key features:
- SCOP 4.65 in Zone Warm (South England) — drops to 3.9 in Zone Cold (Scotland)
- Very quiet outdoor unit (32 dB(A))
- Panasonic Comfort Cloud app — straightforward, functional
- 5-year warranty
Downsides: Noticeable performance drop in prolonged cold spells. Not ideal for anywhere North of Manchester.
7. Kensa Shoebox NX — Best Ground Source Heat Pump
Verdict: Ground-source pumps are a different proposition — dramatically more efficient (SCOP 5.0+) but 2-3× the installation cost due to boreholes or ground loops. If you have space for horizontal trenches and planning permission, the Kensa Shoebox NX is the cleanest UK-designed option.
Sizes: 3kW, 6kW, 9kW, 12kW.
Installed cost (after grant): £10,500-£17,500 (significantly higher because of groundworks).
Key features:
- SCOP 5.2 (highest in this guide)
- Indoor unit — no outdoor fan noise at all
- Very long lifespan (25+ years typical for the pump, 50+ years for the ground loop)
- British-designed and made
- 10-year manufacturer warranty
Downsides: Upfront cost is the big one. You need either a large garden for trenches (100m+ of pipework) or £8,000-£14,000 for boreholes. Not viable for most terraced houses.
Heat Pump Comparison Table UK 2026
| Smart Control for Heat Pumps | Best For | Key Features | Price | |
|---|---|---|---|---|
| tado° V3+ Smart Thermostat | Best smart thermostat for heat pumps | Geofencing, OpenTherm, heat-pump compatible | £179 | Buy on Amazon → |
| Drayton Wiser Heat Pump | Best for multi-zone heat pumps | Heat pump certified, up to 16 rooms | £229 | Buy on Amazon → |
| Mysa Smart Thermostat | Best heat-pump-native thermostat | Built for heat pumps and electric systems | £135 | Buy on Amazon → |
| Shelly EM | Best energy monitor | Monitor heat pump consumption vs solar | £59 | Buy on Amazon → |
| Emporia Vue Gen 3 | Best whole-home monitor | Per-circuit monitoring, heat pump insight | £199 | Buy on Amazon → |
The £7,500 Boiler Upgrade Scheme (BUS) Explained
The BUS grant was extended in 2024 and now runs until April 2028. Every air-source and ground-source heat pump in this guide qualifies, provided:
- Your home has a valid EPC (no outstanding loft or cavity wall insulation recommendations)
- You’re replacing fossil fuel heating (gas, oil, LPG, or direct electric)
- Your installer is MCS certified
- The installation is in England or Wales (Scotland has its own Home Energy Scotland Grant and Loan — up to £15,000)
How it works: Your MCS installer applies for the grant on your behalf. The £7,500 is deducted from your invoice directly — you never handle the grant money. This means the prices quoted above (after grant) are what you actually pay.
Warm Homes Discount: On top of BUS, some suppliers and local authorities offer additional schemes. Check GOV.UK’s Boiler Upgrade Scheme page and your local council’s energy advice team.
Running Costs: What Will a Heat Pump Actually Cost to Run in 2026?
Heat pump running costs depend on three things: your home’s heat demand (measured in MWh/year), your heat pump’s SCOP, and your electricity tariff. Here’s the maths for an average UK 3-bed semi needing 12 MWh/year:
| Heating system | Tariff | Annual cost | vs gas boiler |
|---|---|---|---|
| Gas boiler (85% efficient) | Ofgem cap £0.065/kWh | £918 | Baseline |
| Heat pump SCOP 3.5 (poor) | Standard variable £0.275/kWh | £943 | +£25 ❌ |
| Heat pump SCOP 4.0 (average) | Standard variable | £825 | -£93 ✅ |
| Heat pump SCOP 4.5 (good) | Standard variable | £733 | -£185 ✅ |
| Heat pump SCOP 4.5 | Cosy Octopus tariff | £520 | -£398 ✅✅ |
| Heat pump SCOP 4.9 | Octopus Agile (optimised) | £410 | -£508 ✅✅✅ |
The bottom row is the upside case: a top-of-range Mitsubishi Ecodan combined with Octopus Agile and an automated control strategy can cut heating costs in half compared to gas. We’ve seen this in practice — one of our contributors runs a PUZ-WM 8.5kW in a Kent semi at £38/month average across the winter.
The bottom row also highlights the risk: a poorly-specified heat pump on a standard variable tariff can cost more than a gas boiler. Installation quality and tariff choice matter more than the pump brand.
Heat Pump vs Gas Boiler: 10-Year Cost of Ownership
Upfront cost is only part of the story. Here’s the total 10-year cost for a typical UK 3-bed semi:
- New gas combi boiler (£3,500 installed + £918/year running × 10 + £200/year servicing × 10): £14,680
- Heat pump SCOP 4.5 on Cosy tariff (£4,000 after grant + £520/year × 10 + £150/year service × 10): £10,700
- Heat pump SCOP 4.9 on Agile (£4,500 after grant + £410/year × 10 + £150/year): £10,100
A well-specified heat pump now has a lower 10-year total cost than a new gas boiler in most UK homes. This is the biggest change vs 2022-2023 pricing, driven by the £7,500 grant increase and time-of-use tariffs maturing.
What You Need Before You Order a Heat Pump
- A valid EPC with loft and cavity wall recommendations addressed. Order a new EPC if yours is older than 5 years.
- A proper heat loss calculation. Reputable installers perform a room-by-room heat loss survey (MCS 3005 standard) before sizing. Anyone quoting you without visiting your home is a red flag.
- Radiator audit. Heat pumps run at 45-55°C flow (vs 65-75°C for gas), so smaller radiators may need upgrading. Budget £1,000-£3,000 for radiator upgrades if needed.
- Hot water cylinder space — usually a 180-250L unvented cylinder, which needs floor space in an airing cupboard or utility.
- Outdoor unit location — at least 1m from your property boundary, 1m from any window, not in direct rain run-off.
- Electrical supply check — some large heat pumps (14kW+) need a three-phase supply upgrade, which adds £1,500-£3,000.
Smart Controls: Pairing Your Heat Pump With Smart Home Tech
Heat pumps pair well with smart home controls but the rules are different from gas boilers. The biggest mistake we see: people install a heat pump and then control it with smart TRVs intended for gas boilers. This fights the heat pump’s weather compensation logic and tanks efficiency.
What works well with heat pumps:
- Native manufacturer controls — Mitsubishi MELCloud, Daikin Onecta, Vaillant sensoCOMFORT — always use these first
- Home Assistant + Modbus — for the tech-savvy, direct integration for time-of-use optimisation
- Sophisticated third-party controllers like the Drayton Wiser Heat Pump Edition (the only mainstream smart thermostat designed specifically for heat pumps)
- Octopus Cosy or Agile integration — some heat pump installers now offer pre-built control packages that shift heating to cheap overnight windows
What doesn’t work well:
- Standard smart TRVs (tado°, Hive) — they assume gas behaviour and will make your heat pump cycle badly
- Nest Learning thermostat — doesn’t speak OpenTherm properly for weather compensation
- Old-style “on/off” room thermostats — force the heat pump into inefficient cycling
Noise and Planning Permission
Air source heat pumps in England usually fall under permitted development rights, meaning no planning permission is needed IF:
- The outdoor unit is under 0.6m³ in volume
- It’s at least 1m from the property boundary
- There’s only one heat pump (not multiple)
- Sound level at any neighbouring habitable window is under 42 dB(A) — calculated per MCS 020
- Your property isn’t listed or in a conservation area (extra rules apply)
In practice, the 42 dB(A) boundary noise test is where most installations fail. This is why the Vaillant aroTHERM plus (28 dB(A)) is so valuable in urban terraces — it passes the boundary test even when mounted close to a neighbour’s window.
Frequently Asked Questions
Do heat pumps work in old UK homes?
Yes, but with caveats. Victorian and Edwardian terraces benefit most from insulation improvements first (loft, cavity wall, double glazing) before heat pump installation. Uninsulated solid-wall homes can still work but usually need larger radiators and a slightly oversized pump. Budget an extra £2,000-£4,000 for the radiator upgrades and heat loss mitigation.
What size heat pump do I need for my UK home?
A proper MCS heat loss calculation is the only right answer. Rules of thumb: new-build 2-bed flat = 3-5kW, 3-bed semi = 5-8kW, 4-bed detached = 8-12kW, large 5+ bed = 12-16kW. These are starting points — your installer should refine with a room-by-room survey.
How long do UK heat pumps last?
Air-source pumps typically last 15-20 years. Ground-source pumps last 20-25 years, with the ground loop lasting 50+ years. This is shorter than a gas boiler only appears to be — in practice, most UK homes get 12-15 years out of a boiler. The headline lifespan gap is smaller than people think.
Can I install a heat pump myself?
No. To qualify for the £7,500 BUS grant, installation must be by an MCS-certified installer. F-gas handling rules also require certification. DIY isn’t practical or legal in the UK.
What’s the best smart thermostat for a heat pump?
Always use the manufacturer’s native control first (MELCloud, Onecta, sensoCOMFORT). If you need a unified interface, the Drayton Wiser Heat Pump Edition is currently the only mainstream smart thermostat specifically engineered for heat pumps. Avoid using gas-era smart TRVs — they’ll fight the heat pump’s weather compensation.
What tariff should I switch to with a heat pump?
Octopus Cosy is the easy answer for most UK homes — it offers 6 hours of cheap electricity overnight and again in the afternoon, perfectly timed for heat pump operation. Octopus Agile is better if you have solar, a home battery, or are willing to actively manage usage. Read our full Octopus Agile vs Tracker guide.
Do heat pumps work in very cold weather?
Modern UK heat pumps (all in this guide) maintain full heating output down to at least -15°C, and reduced output down to -25°C. UK winters rarely drop below -5°C in populated areas. The real performance issue is sustained cold + humidity, which increases defrost cycles. A properly-specified pump handles this without needing backup heating.
The Bottom Line: Which UK Heat Pump Should You Buy in 2026?
For most UK homes in 2026, the decision comes down to three scenarios:
- Budget-conscious, willing to take slightly less proven brand: Samsung EHS Mono. Best cost-to-performance ratio in 2026.
- Premium, max efficiency, proven reliability: Mitsubishi Ecodan PUZ-WM. The gold standard.
- Urban terrace with close neighbours: Vaillant aroTHERM plus 5kW. The quiet one wins.
Whichever model you choose, the installer matters more than the brand. A skilled MCS installer fitting a Samsung will deliver better real-world performance than a lazy installation of a Mitsubishi. Check MCS Certified Installer Scheme reviews, ask for SCOP data from their existing installations, and insist on a proper heat loss survey before getting quotes.
Related Smart Home Guides
- Heat Pumps Explained: Are They Worth It for UK Homes? — the background piece
- Best Solar Panels UK 2026 — pair your heat pump with solar for free heating
- Best Smart Thermostats UK 2026 — including heat-pump-compatible picks
- Best Smart Radiator Valves UK 2026 — why you should NOT use most of these with a heat pump
- Octopus Agile vs Tracker — which tariff to choose
- Best EV Home Charger UK 2026 — if you’re adding an EV too
- Best Smart Home Devices to Cut Energy Bills
This guide was researched and written by James Wright, founder of Smart Home UK. We test heat pump installations in real UK homes across the Kent, Sussex, and South London area. No manufacturer has paid for inclusion in this guide.
Smart Home UK Team - UK smart home enthusiasts who test, review and compare products. Independent. Honest. No sponsored placements.