Haier heat pumps and air conditioning

Haier is a global appliance manufacturer that has moved into European heating with an air-to-water range built entirely around R290 refrigerant. The maker states the new high temperature R290 heating range includes a Hydrosplit heat pump available in 4kW to 16kW sizes, an all-in-one unit with a stainless-steel heat exchanger for domestic hot water, and a heat pump water heater in 80L to 250L wall-mounted and floor-standing options¹. Haier claims A+++/A+++ performance across the range, with leaving water temperatures up to 80 degrees C¹.

The company's UK presence in heating is at an early stage. Haier runs a UK product trailer tour as a demonstration and training space for installers, and opened a dedicated HVAC training centre in Barcelona in 2022. Against that, heat pumps are installed in around 1% of UK homes, so the trained installer base for any brand is thin².

The most important thing a UK householder needs to know about the Haier name is not about heat pumps at all. In August 2025 the Office for Product Safety and Standards served Haier with an immediate Requirement to Warn Notice over the risk of fire in certain heat pump tumble dryer models, affecting more than 17,000 owners whose appliances were modified by the company³. That notice is covered in full below.

Haier at a glance: range, refrigerants and energy ratings

Haier's European heating catalogue is narrower than those of the established UK brands, and it is organised around one refrigerant. The R290 heating range comprises three product families: the Hydrosplit air-to-water heat pump, an all-in-one unit, and a heat pump water heater¹. The Hydrosplit is the unit aimed at whole-house heating, offered from 4kW to 16kW, which spans a small flat through to a large detached house. The all-in-one pairs the heat pump with a stainless-steel heat exchanger for domestic hot water. The water heater is a standalone cylinder replacement rather than a space heating product, in 80L to 250L sizes in both wall-mounted and floor-standing formats¹.

That is a smaller line-up than the monobloc and split ranges sold by the longer-established names, and it means a householder considering Haier is choosing from a defined set rather than a full catalogue. The company describes the range as adopting advanced full-inverter heat pump technology, which is the standard approach for modulating output to match demand rather than cycling on and off¹.

For context on where this sits in the wider market, heat pump types include air source, ground source and air-to-air, and air-to-water units such as Haier's are the type that feeds radiators, underfloor heating and a cylinder⁴. Air and water source pumps offer additional options based on a property's needs⁵. The air-to-water format is the one that replaces a gas boiler directly, and it is the format Haier sells into the UK.

Refrigerants: R290 and R32, and why the choice matters

The refrigerant inside a heat pump is a greenhouse gas, and its global warming potential determines how much damage a leak does relative to carbon dioxide. Haier states that R290 has a global warming potential of just 3, compared to that of R32 which is 675¹. That is a difference of more than two orders of magnitude, and it is the reason R290 has become the refrigerant of choice for new European heat pump designs.

R290 is propane, which is flammable, and that shapes how a unit is installed and where it can go. It is not a reason to avoid the technology, but it is a reason the installation has to follow the relevant standards. Relevant British Standards for this kind of work include BS EN 378-3:2008 on refrigerating systems and heat pumps, covering installation site and personal protection, and BS EN 15450:2007 on the design of heat pump heating systems⁶.

The wider market is split. Some established units still use R32, including the Daikin Altherma 3 H HT and the Ideal Logic Air 4kW, while others have moved to R290, including the NIBE S2125-12⁷. Haier has gone further than most by building its entire European heating range on R290 rather than offering it as one option among several¹. For a householder, the practical consequence is that a Haier installation will be governed by the flammable refrigerant rules, and the installer needs to be competent in them. The refrigerant rules are worth understanding before any quote is compared.

Energy ratings: A+++ and A++ across a large range

Haier claims market-leading ratings across the range. The Hydrosplit is described as having A+++/A+++ performance with a wide operating range, the all-in-one range as providing A+++ energy efficiencies alongside 80 degrees C leaving water temperatures, and the R290 air-to-water monobloc as delivering A+++ efficiencies at the same 80 degrees C leaving water temperature¹.

Those are the maker's own figures, and they are the only efficiency figures available for these specific models in the material here. They should be read as the manufacturer's claim rather than as an independently verified rating. Independent certification exists for heat pumps through the Heat Pump KEYMARK scheme, which can apply to all heat pumps, combination heat pumps and hot water heaters, and which maintains a public database for detailed information⁸. A KEYMARK certificate for a Haier air source R290 unit is registered under number 041-K112-04⁹. Checking a specific model against the KEYMARK database is the way to confirm a rating independently rather than relying on a brochure.

The 80 degrees C leaving water temperature matters more than the letter rating for many UK homes. A heat pump that can reach 80 degrees C can serve existing radiators without a full emitter upgrade, which is the same proposition as the high-temperature units sold by other makers. The trade-off is that efficiency falls as flow temperature rises, so a unit running at 80 degrees C will not achieve the same seasonal performance as the same unit running at 45 degrees C. The letter rating describes the appliance under test conditions, not the system as installed.

The HD90-A3Q397U1 heat pump: what it is

The model reference HD90-A3Q397U1 does not appear in the material available here, and no specification, output, refrigerant or rating for it can be given. What can be said is what the naming convention of comparable units implies and what Haier's published range covers.

Haier's European heating range is built around the Hydrosplit, the all-in-one and the heat pump water heater, all on R290¹. The Hydrosplit spans 4kW to 16kW¹. A unit carrying a model reference in that family would sit within that output band and use R290.

For comparison, a monobloc air-to-water unit of the kind sold into the UK market integrates its hydronic components on board: a plate heat exchanger, water pump, flow sensor, pressure sensor, deaerator and safety valve, with a 9kW heating output at A7/W35 on one LG example¹⁰. That is the pattern for a monobloc design, where the refrigerant circuit stays in the outdoor unit and only water crosses the building envelope. A split or Hydrosplit design, as Haier names it, keeps the refrigerant circuit split between indoor and outdoor components.

UK availability and installer support

Haier's UK heating presence is being built through installer engagement rather than through a published retail or installer network. The company runs a UK product trailer tour, a fully kitted trailer touring the country as a practical demonstration and training space for installers. It opened a training centre in Barcelona fully dedicated to HVAC in 2022, and in September 2026 established a strategic partnership with Frigentis GmbH to support growth in the Austrian market, alongside a partnership with Solar Denmark to commercialise its R290 air-to-water portfolio for professional installers in Denmark.

That pattern, training hubs and distribution partnerships in individual European markets, describes a manufacturer building a route to market rather than one with an established UK installer base. For a householder, the practical question is who will service the unit in five years. Heat pumps are currently installed in 1% of UK homes, and around 1% have a heat pump installed, so the pool of experienced installers is small for every brand². Support is also available for installers and manufacturers to expand supply chains through the Heat Pump Ready Programme, which aims to improve lifetime consumer experience of heat pumps¹².

On the electricity side, an air source or ground source installation requires the home's electrical supply to be capable of supporting the system, and older properties may require upgrades to the consumer unit or electrical improvements¹³. Where a property has a new maximum demand of 60A or less and meets the other relevant requirements, the installation can follow a connect and notify route, with the DNO notified via the heat pump connection form within 28 days of installation¹⁴. Some electrical work in special locations is notifiable to the local authority unless the installer is a member of a Competent Persons Self Certification Scheme¹⁵. In Scotland, air source heat pumps fall under Class 6H permitted development, with improvements or alterations within a 1 metre bubble excluded¹⁶. The installation process and the electricity supply requirements are worth reading before any quote is signed.

Product safety: the Requirement to Warn Notice and the tumble dryer modification programme

This is the part of the Haier record that a UK householder needs to read carefully, and it concerns tumble dryers rather than heat pumps. In August 2025 the Office for Product Safety and Standards served Haier with an immediate Requirement to Warn Notice, placing a legal duty on the company to inform affected owners, and alerted consumers to the risk of fire in certain heat pump tumble dryer models³. The notice covers more than 17,000 heat pump tumble dryer owners whose appliances were modified by Haier, and the company must inform those affected to tell them to switch off their appliance immediately³.

The Haier heat pump tumble dryer carries product safety notification number 2505-0135, published on 20 May 2025¹⁷. Haier is named among the brands involved in the heat pump tumble dryer modification programme, alongside Candy, Baumatic, Caple, Hoover, Lamona, Iberna and Montpellier³. Owners are strongly advised to stop using an affected appliance immediately and contact the manufacturer to arrange for a modification to take place¹⁰.

The same programme has caught other manufacturers. Joule Hot Water Systems UK Ltd contacted owners to arrange an upgrade to the ModulAir All E Heat Pump, a notification made by Local Authority Trading Standards¹⁸. That is a heat pump rather than a dryer, and it shows the alert system working across product types. Product recalls and alerts are published centrally so that owners can check a model against the record²⁰.

For Northern Ireland, the picture on dryer labelling differs: shops are no longer able to sell new condenser dryers, so a buyer might only see new heat pump tumble dryers for sale, and the change affects both heat pump tumble dryers and condensing dryers²¹. Guarantee terms on comparable machines are typically short: one Hoover heat pump tumble dryer carries a one-year guarantee as standard, conditional on registering the appliance²².

What owning a Haier unit means for household energy independence

An air-to-water heat pump changes what a home depends on. It removes the gas connection and the gas supplier from the heating and hot water equation, and replaces them with electricity. That is a real shift in sovereignty: the fuel is no longer imported methane delivered through a national network, and a home with solar panels and a battery can meet part of its own demand. Haier's own claim for its heat pump water heater is that, compared to traditional electric storage water heaters, it can save up to 75% of energy for domestic hot water in households¹. That is a maker's figure and it compares against resistive electric heating, not against gas.

What remains is a set of dependencies. The unit runs on grid electricity from a supplier, so the household is still exposed to electricity prices and to the network. The installation may require electrical improvements, since older properties may need consumer unit upgrades or other electrical work¹³. The refrigerant circuit needs a competent engineer for any work on it, which ties servicing to a trained trade rather than to the householder. And the installer base is small: heat pumps are installed in around 1% of UK homes².

The Haier-specific dependencies are the ones to weigh. The UK installer network is being built through a trailer tour and training partnerships rather than being established, so finding someone to service a Haier unit in ten years is a genuine question. The company's most prominent UK safety record in the last two years concerns its tumble dryers, not its heat pumps, and that record is a matter of public notice rather than of opinion³. For a household weighing energy independence, the technology is sound and the R290 choice is a genuine environmental advantage; the open questions are about who supports the unit over its life.