Category
Choosing a Heat Pump.
Which heat pump should you buy? Best-of roundups, brand and model comparisons, air source vs ground source, hybrids, refrigerants, noise levels, and how to size the system, radiators and hot water cylinder correctly.
Heat Pump vs Condensing Boiler UK 2026
Heat pump vs modern condensing gas boiler UK 2026: real-world running cost, efficiency parity, install cost, future-proofing, when each wins.
Heat Pump + Underfloor Heating Retrofit UK 2026
Heat pump + underfloor heating retrofit UK 2026: lift-the-floor vs overlay vs wet-vs-dry options, room-by-room costs, when UFH is worth retrofitting.
Heat Pump Second-Hand + Used Units UK 2026
Heat pump second-hand UK 2026: risks + due diligence, warranty transferability, MCS recommissioning, when used makes sense vs new.
Heat Pump SCOP vs HSPF Differences UK 2026
Heat pump efficiency metrics UK 2026: SCOP vs HSPF vs COP vs EER, conversion math, why UK uses SCOP, what to compare on a datasheet.
Heat Pump Refrigerant Types Explained UK 2026
Heat pump refrigerants UK 2026: R32 vs R290 vs R454B compared, GWP + safety + efficiency, F-gas phasedown timeline, what to choose.
Heat Pump Pipework Upgrade Requirements UK 2026
Heat pump pipework upgrade UK 2026: 22mm/28mm flow + return, branch sizing, pump head, balancing valves, bypass loops.
Heat Pump + Extension UFH Design UK 2026
Heat pump UFH design for UK extension 2026: screed depths, insulation, manifold placement, integration with existing system.
Heat Pump Cylinder Coil Sizing UK 2026
Heat pump cylinder coil sizing UK 2026: standard vs heat-pump-specific cylinders, surface area + reheat times, why coil matters more than tank volume.
Heat Pump for Combi Boiler Replacement UK 2026
Heat pump replacing combi boiler UK 2026: pipework reuse, cylinder install, instant vs stored hot water expectations, real install cost.
Heat Pump vs Hybrid Heat Pump UK (2026): Which Is Right?
Full air-source heat pump vs hybrid (ASHP + gas boiler) in UK 2026. BUS grant gap, running cost, and when hybrid actually makes sense.
heat pump
Heat Pump Radiator Upgrades UK (2026)
Heat pump radiator upgrades UK 2026: when existing rads are too small, K2/K3 vs Type 22/33 sizing, scope and cost per room.
heat pump noise
Heat Pump Noise Levels UK 2026: Top 6 Models Compared
Heat pump noise compared - decibel ratings of UK top 6 models against the MCS 020 planning permitted-development 42 dB(A) boundary limit.
Hybrid Heat Pump + Gas Boiler UK 2026
Hybrid heat pump + gas boiler UK 2026: when hybrid fits, bivalent operation, cost vs full heat pump, leading products, BUS grant + 2035 ban.
Heat Pump Cylinder Size Calculator UK 2026
Heat pump cylinder size UK 2026: 150L, 200L, 250L, 300L sizing matrix by household + usage pattern + recovery time.
heat pump
Heat Pump: Underfloor Heating vs Radiators UK 2026
Underfloor heating (35-40°C) vs upgraded radiators (50°C) - costs, SCOP gain, and when each makes sense for a UK heat pump retrofit.
Heat Pump COP vs SCOP UK 2026: What the Numbers Mean
COP and SCOP explained: what the numbers mean, why SCOP matters more for UK installs, realistic 2026 values, how to compare manufacturer claims.
Heat Pump + AC Reverse-Cycle Cooling UK 2026
Heat pump reverse-cycle cooling UK 2026: when worth enabling, hydronic UFH limits, fan coil units, alternative dedicated AC.
Heat Pump vs Biomass Boiler UK 2026
Heat pump vs biomass boiler UK 2026: install cost, BUS grant, fuel cost, suitability for off-grid properties, maintenance, when to pick which.
Best Heat Pumps UK 2026: Honest Buyer's Guide
Independent 2026 UK heat pump buyer's guide - Aira, Octopus Cosy 6, BOXT, Heatable, Worcester Bosch, Vaillant, Mitsubishi, Daikin, Samsung compared.
Heat Pump Glossary of UK Terms 2026
Heat pump UK glossary 2026: 40+ key terms defined - SCOP, COP, EER, R290, MCS, BUS, weather compensation, defrost cycle, hydronic, more.
Heat Pump Radiator Sizing UK 2026
Heat pump radiator sizing UK 2026: type 21 vs 22 vs K3, sizing for low flow temperatures, when existing radiators work, calculator approach.
heat pump
Air Source vs Ground Source Heat Pump: UK 2026 Guide
Air-source vs ground-source heat pumps for UK homes in 2026: install cost, real-world SCOP, space needs, BUS grant rules, and which suits which property.
heat pump
R290 (Propane) Heat Pumps UK 2026: What to Know
R290 (propane) is the low-GWP refrigerant UK heat pump brands are moving to. Global warming potential, F-gas exemption, brands using it, and safety.
Replacing Failed Gas Boiler with Heat Pump UK 2026
Replacing a failed gas boiler with a heat pump UK 2026: emergency timeline (1-2 weeks), interim heating, BUS acceleration, contingency planning.
heat pump
Heat Pump Hot Water Cylinder Sizing UK 2026
How to size a heat pump hot water cylinder UK - 210-300L typical, Mixergy vs Newark vs Telford, unvented vs vented decision.
Heat Pump Sizing: Oversizing vs Undersizing UK 2026
Heat pump sizing UK 2026: why correct sizing matters more than COP, how MCS surveys calculate, symptoms of oversizing vs undersizing, fix paths.
scop
Heat Pump SCOP Explained: UK 2026 Buyer's Guide
SCOP is the most important spec on a heat pump label - but most explanations get it wrong. What it measures, what's good, and why flow temperature wins.
Grant Aerona vs Mitsubishi Ecodan UK 2026
Grant Aerona vs Mitsubishi Ecodan UK 2026: British vs Japanese engineering, range, warranty, installer network, pricing.
sizing
Heat Pump Oversizing: The UK Problem Explained
Why oversizing a heat pump kills efficiency and what to do about it - short cycling, SCOP loss, minimum modulation, and 2026 UK sizing guidance.
Vaillant vs Viessmann Heat Pump UK 2026
Vaillant vs Viessmann heat pumps UK 2026: engineering, range, warranty, installer network, pricing - which German major fits your install.
Should I Get a Heat Pump or Wait? UK 2026
Should you get a heat pump now or wait? 5 decisive factors: BUS grant, R290 tech, installer market, gas-boiler ban, your boiler life.