This section contains useful information about your heat pump.
How to use this section
Find your heat pump in the manufacturer, then the controller type.
Look for relevant manuals, how to guides and error code lookups with tutorials on how to repair.
Heat Pump Manufacturers in the UK
A comprehensive look at the main heat pump manufacturers active in the UK, grouped by estimated market presence. “Tier A” brands represent most domestic installations, while “Tier B” are established specialists and fast-growing entrants.
Tier A – Major UK market players
Tier B – Established & specialist brands
Vaillant
Premium German brand with strong UK presence.
- Known for: Reliable performance, installer-friendly design, strong after-sales support.
- Positioning: Premium, popular for both retrofit and new build.
- Why it matters: One of the most widely specified heat pump brands in the UK.
Worcester Bosch
Household boiler name moving into heat pumps.
- Known for: Huge UK brand recognition and trusted boiler heritage.
- Positioning: Premium domestic, reassuring for “first heat pump” homes.
- Why it matters: Large installed base and extensive installer network.
Daikin
Global HVAC giant with deep heat pump expertise.
- Known for: Quiet systems, advanced controls, efficient Altherma range.
- Positioning: Premium, strong in both domestic and commercial markets.
- Why it matters: One of the world’s biggest heat pump manufacturers, very active in the UK.
Mitsubishi Electric (Ecodan)
A benchmark brand for ASHP reliability.
- Known for: Robust performance, especially in colder weather.
- Positioning: Mid-premium, very strong in social housing and retrofit.
- Why it matters: Widely used with good UK parts availability and technical support.
Viessmann
High-spec German systems with low noise levels.
- Known for: Quiet operation, strong system design and quality engineering.
- Positioning: Premium; common in high-spec new builds and extensions.
- Why it matters: Go-to choice for many architect-led and quality-focused projects.
NIBE
Scandinavian specialist with strong GSHP offering.
- Known for: Excellent performance in cold climates and very efficient ground-source units.
- Positioning: Premium specialist, especially for GSHP.
- Why it matters: One of the leading ground-source manufacturers in the UK and Europe.
Samsung
Quiet, modern-looking air source heat pumps.
- Known for: Competitive pricing, low noise and sleek outdoor units.
- Positioning: Mid-market, cost-effective domestic systems.
- Why it matters: Rapidly growing UK share via distributors and installer partners.
Panasonic (Aquarea)
Well-proven Aquarea range for UK homes.
- Known for: Good efficiencies in mild and colder UK conditions.
- Positioning: Mid-premium, popular with installers moving from boilers.
- Why it matters: Regularly appears in UK top-brand and best-value comparisons.
LG (Therma V)
Efficient R32/R290 systems with strong controls.
- Known for: Efficient inverter systems and solid smart-control options.
- Positioning: Good value balance of price and performance.
- Why it matters: Increasingly chosen for Boiler Upgrade Scheme-funded installs.
Grant UK (Aerona³)
Popular choice for rural oil-boiler replacements.
- Known for: Compact R32 units and installer-friendly design.
- Positioning: Mid-market, strong in off-gas and rural areas.
- Why it matters: Very common in oil-to-heat-pump upgrades across the UK.
Baxi Heating
Well-known UK boiler brand expanding into HPs.
- Known for: Strong installer relationships and familiar boiler-style support.
- Positioning: Mid-market, aimed at mainstream UK homes.
- Why it matters: Growing heat pump share thanks to the existing Baxi installer base.
Ideal Heating
Boiler veteran with a modern ASHP range.
- Known for: Affordable systems and simple, installer-friendly setups.
- Positioning: Mid-market, retrofit-friendly for typical UK homes.
- Why it matters: Rapid growth via the existing Ideal boiler installer network.
Hitachi (Yutaki)
High-temperature-capable ASHP range.
- Known for: High-temp Yutaki units, quiet operation and durable compressors.
- Positioning: Mid-premium, useful where higher flow temperatures are needed.
- Why it matters: Often considered as an alternative to hybrids in retrofit projects.
Kensa Heat Pumps
UK ground-source heat pump specialist.
- Known for: Market-leading GSHPs and shared-loop/district systems.
- Positioning: Premium GSHP for social housing and large developments.
- Why it matters: One of the only UK-based GSHP manufacturers with large-scale projects.
Stiebel Eltron
German engineering with a focus on quality.
- Known for: Robust, long-life systems and high performance in GSHP.
- Positioning: Premium specialist, often specified in high-spec projects.
- Why it matters: Favoured where reliability and performance are prioritised over upfront cost.
Aira
New Nordic entrant with “heat as a service”.
- Known for: Subscription-style models and a very homeowner-friendly offer.
- Positioning: Premium service model rather than pure hardware sale.
- Why it matters: Rapid expansion across Europe and building presence in the UK.
Glen Dimplex / Dimplex
Long-established name in electric heating.
- Known for: Broad product range and history in electric heating and renewables.
- Positioning: Mid-market domestic and small commercial.
- Why it matters: Recognised brand, particularly in electric heating projects.
Danfoss
Controls & commercial heat pump systems.
- Known for: Robust hydronic components and commercial-scale systems.
- Positioning: Non-domestic and larger system designs.
- Why it matters: Important brand in larger commercial and district energy projects.
Calorex / Dantherm
Specialists in pool and commercial HPs.
- Known for: Pool heating, dehumidification and leisure-sector heat pumps.
- Positioning: Specialist solutions for pools, leisure and commercial sites.
- Why it matters: Go-to manufacturer for many UK pool and leisure applications.
Warmflow (Zeno)
Rural and off-gas focused brand.
- Known for: Simple, cost-effective systems aimed at rural homes.
- Positioning: Budget to mid-market.
- Why it matters: Popular in NI and rural parts of the UK upgrading from oil.
Firebird
Oil-boiler heritage with an ASHP range.
- Known for: Strong rural installer relationships and boiler background.
- Positioning: Rural / off-gas upgrade option.
- Why it matters: Often specified where Firebird already has a boiler presence.
Midea
High-volume OEM with growing UK footprint.
- Known for: Very competitive pricing; supplies many white-label units.
- Positioning: Budget to mid-market via distributors and OEMs.
- Why it matters: An increasingly common brand behind “installer own-label” systems.
Brand grouping is based on estimated UK market presence using independent reports, installer surveys and public data. Availability and product ranges may change as the UK heat pump market evolves.
