Daikin Emura air conditioners: models, efficiency and specifications

A Daikin Emura is a wall-mounted air-to-air heat pump that cools a room in summer and heats it in winter, and it purifies the indoor air while it does so¹. It is sold as a pair system, meaning one indoor unit matched to one outdoor unit, and the same indoor unit can also be connected to a multi outdoor unit so that one box outside serves several rooms².

The headline numbers are these. Heating and cooling capacity runs up to 5.8 kW and 5.0 kW respectively, the heating energy label reaches up to A+++, and sound pressure falls as low as 19 dBA¹. Daikin's own case study of an installed Emura records a seasonal performance of over 5.15, meaning that for every 1 kW of electricity in, the system delivers 5.15 kW of heat out⁴.

What that buys a household is a room that is comfortable in both directions from one box on the wall, with no gas connection and no boiler. What it does not buy is independence from electricity: the unit runs on mains power, and the app and voice features run through a broadband connection and Daikin's own service.

What the Daikin Emura is: an air-to-air heat pump for heating and cooling

The Emura is not a cooling-only air conditioner. Daikin describes it as keeping you cool in summer and warm in winter, and as keeping your home healthy by purifying the indoor air¹. Underneath the styling it works the way every air-to-air heat pump works: it transfers energy from the outside air to your room, no matter what the temperature outside, and releases that energy at a higher or lower temperature through the indoor unit depending on whether you are heating or cooling³.

That distinction matters for a UK household because it changes what the unit is for. A conventional air conditioner is a summer appliance that sits idle for eight months. An air-to-air heat pump is a year-round heat source for the rooms it serves, which is why Daikin lists the Emura under both its air conditioner pages and its air-to-air heat pump pages¹. The indoor unit is the component situated inside the home that supplies the conditioned air into the space, and the outdoor unit sits on an outside wall, a roof or in a garden⁵.

The Emura is a pair system at its simplest: one indoor unit and one outdoor unit, matched to each other⁶. Daikin also lists it as compatible with multi outdoor units, so the same wall unit can be part of a larger installation². The wider Daikin air-to-air range runs from 1.5 kW to 7 kW in capacity, which sets the Emura's 5.8 kW heating figure in context: it sits near the top of the domestic range rather than at the bottom⁷.

Efficiency: A+++ on the label and a SCOP over 5.15

The Emura carries a heating energy label of up to A+++ on the A+++ to D scale². That is the top of the scale, and it is a maker's published rating for the product rather than an independent test result.

The more useful figure for a household is the seasonal performance. Daikin's case study of an installed Emura records the system as very energy efficient with SCOPs of over 5.15, which the case study explains as meaning that for every 1 kW in, the household gets 5.15 kW out⁴. SCOP is the seasonal coefficient of performance: it averages performance across a heating season rather than measuring a single moment, so it is a better guide to running costs than a peak efficiency number.

For comparison within the same maker's range, the Sensira carries a heating label of up to A+ and a cooling label of up to A++, while the Ururu Sarara is listed as full range A+++ in cooling and heating⁸. The Stylish set, which shares the Emura's 5.8 kW and 5.0 kW capacity figures, also carries a heating label of up to A+++¹⁰. The Emura therefore sits in the upper part of Daikin's domestic line-up on efficiency, alongside the Stylish and below the Ururu Sarara's full-range A+++ claim.

A label is not a running cost. The SCOP of over 5.15 comes from one installation in one building, and the figure a household actually sees depends on the outdoor temperature, the room's heat loss, the setpoint and how long the unit runs. What the label does establish is that the Emura is a heat pump rather than a resistive heater, and that distinction is the whole basis of its efficiency case. More on how these ratings are calculated is at air conditioning efficiency ratings.

Heating and cooling capacity: up to 5.8 kW heating, 5.0 kW cooling

Daikin publishes the Emura's heating and cooling capacity as up to 5.8 kW and 5.0 kW¹. Those are the top figures in the range, not a single model's output: the Emura is sold in a spread of sizes below that ceiling, and the size chosen for a room is set by the room's heat gain in summer and heat loss in winter.

The same 5.8 kW and 5.0 kW pairing appears on the Daikin Stylish set, so the two ranges share a capacity ceiling¹⁰. Other units in the range go higher: the Sensira is listed at up to 8.2 kW heating and 7.1 kW cooling, and the Comfora at the same 8.2 kW and 7.1 kW¹¹. The Ururu Sarara is listed at up to 6.3 kW heating and 5.0 kW cooling⁹. The Perfera floor-standing indoor unit is listed at up to 5.8 kW heating and 5.0 kW cooling, matching the Emura's ceiling in a different form factor¹³.

Sizing is where a household gets this wrong most often. A unit that is too small runs continuously and never reaches the setpoint; one that is too large cycles on and off, which costs efficiency and comfort. The Emura's ceiling of 5.8 kW heating suits a large room or an open plan space, and the smaller outputs in the range suit bedrooms and studies. The general method for matching kW to room size is set out at air conditioning sizing.

Comfort features: Coanda airflow, intelligent thermal sensor and heat boost

Three features shape how the Emura feels in a room rather than how it performs on a label.

The Coanda effect optimises airflow for better temperature distribution¹. In practice this means the unit throws conditioned air along the ceiling, where it clings to the surface and spreads across the room before dropping, rather than blowing directly at whoever is sitting in front of it. That is the difference between a room that feels evenly conditioned and one where the person nearest the unit is cold or hot while the far corner is not.

The intelligent thermal sensor monitors temperature in every area¹. Daikin uses the same description on the Stylish set, where the sensor monitors current room temperature¹⁴. The point of a sensor of this kind is that the unit responds to the temperature where people are rather than only to the air returning to the intake grille.

Daikin also describes the Emura as an icon in contemporary climate control, designed to please the eye⁶. That is a maker's styling claim rather than a performance figure, but it is the reason the range exists: the Emura is sold on appearance as much as on specification, and the curved wall unit is meant to be looked at rather than hidden.

Air purification with Flash Streamer

The Emura purifies the air as it conditions it. Daikin states that Flash Streamer breaks down allergens and eliminates odours¹. The same technology appears across the range: the Perfera floor-standing unit is described as using Flash Streamer to eliminate allergens and odours, and Daikin notes that some units are also equipped with a Flash Streamer and different filters such as the titanium apatite deodorising filter or the silver allergen removal filter³.

Two things are worth separating here. The Flash Streamer is built into the Emura, so it is part of the unit rather than an optional extra. The additional filters are described by Daikin as fitted to some units, not all, so a household should not assume the titanium apatite or silver allergen filter comes with every model in the range³.

For a household, the practical value is that a single wall unit handles cooling, heating and a degree of air treatment, which matters in a bedroom or a room used by someone with allergies. It is not a substitute for ventilation, and it is not a medical device. The wider question of how air conditioning interacts with humidity and air quality is covered at air conditioning and humidity.

Noise: down to 19 dBA

Daikin publishes the Emura's sound pressure as down to 19 dBA¹. That is the quietest figure in the range and it applies at the lowest fan setting, not across all operating conditions.

The 19 dBA figure is common across Daikin's domestic line-up rather than unique to the Emura. The Ururu Sarara, the Stylish set and the Comfora are all listed at down to 19 dBA, while the Sensira is listed at down to 20 dBA⁹. So the Emura is at the quiet end of the range but not ahead of its stablemates.

What matters for a bedroom is that the figure is a minimum. Fan speed, compressor speed and the gap between the setpoint and the room temperature all raise the sound the unit makes, and the outdoor unit adds its own noise outside the window. A unit running hard to pull a hot room down to a low setpoint will be audible even if its published minimum is 19 dBA. The comparison across brands and the question of neighbours is at air conditioning noise.

Design, colours and finishes: Black, Silver and Matte White

The Emura is sold on its appearance, and the finish is part of the specification rather than an afterthought. Daikin lists the available colours as Black, Silver and White⁶. The same three colours appear on the Stylish set¹⁴.

The wider Daikin range shows how much scope there is for matching a room. The Stylish is offered in Silver, White and Black, and also in an oak wood style with a black body, a grey fabric style with a black body, colourful fabric styles with a white body, a dark brown leather style with a black body and a light wood style with a white body¹⁵. The Emura's three finishes are a narrower palette than that, which is the trade-off for its more sculpted shape.

For a household, the finish is a real constraint rather than a detail. A wall unit sits in the room all year, and the colour has to work with the wall it is mounted on. It is worth confirming the finish at the survey stage, because the colour is fixed at the point of order and cannot be changed later without replacing the unit.

Multi-room setups: up to 5 indoor units on one outdoor unit

The Emura indoor unit can be part of a multi system. Daikin states that up to five indoor units can be connected to a single outdoor unit, and that this configuration lets you heat and cool multiple rooms from one box outside². The same five-unit limit is repeated across Daikin's multi pages and its guidance on how many rooms an air-to-air heat pump can serve⁷.

The appeal is practical. One outdoor unit means one position on the wall, roof or in the garden, one set of refrigerant pipework running to a single point, and one unit making noise outside rather than several. Daikin notes that because it is a single unit, installation is faster thanks to simplified piping and wiring⁶. The Multi range is listed as offering up to A+++ efficiency in both heating and cooling⁷.

The limits are worth stating as firmly as the benefits. Five indoor units on one outdoor unit means the outdoor unit's capacity is shared, so not every room can be pulled to its setpoint at once, and the system's efficiency depends on how many rooms are calling for heat or cooling at the same time. A multi system also means a single point of failure: if the outdoor unit stops, every room it serves stops with it. The comparison between one room and several is at multi-split air conditioning, and the question of how many indoor units a multi outdoor unit can serve is at how many indoor units can a multi-split outdoor unit serve.

Price, installation and what owning an Emura means for energy independence

Daikin does not publish a list price for a supplied and fitted Emura, so the figure that matters comes from an installer after a survey. The published prices that do exist are for the hardware, and they disagree. One listing shows the Emura high wall system at £1,929.99 including VAT against a high street price of £2,109.99 including VAT, while another shows £1,608.33 excluding VAT against £1,758.33 excluding VAT. The documents do not resolve which applies, so both figures should be read as indicative hardware prices rather than a fitted cost.

Installation is a one-day job in Daikin's own account. The case study of an installed Emura records that the install took one day, with the installers in at 8am and gone by late afternoon⁴. That is a maker's case study of one installation, not a guarantee: pipe runs, the outdoor unit position and whether the property needs a new electrical supply all affect the time. The work involves refrigerant pipework, so it sits with an F-gas certified engineer, and the outdoor unit needs a position on a wall, a roof or in a garden with room for airflow². The full process is at air conditioning installation.

On running cost, the only figure tied to an Emura is the case study's record of it drawing about 200 watts most of the time⁴. That is one home's snapshot. For scale, one supplier puts average UK household electricity use at 6.85 kWh a day, another source puts an average home at between 8 and 10 kWh a day, and electric heaters are put at around 2.5 kWh on average per hour¹⁸. The Emura's case study figure is well below the resistive heater figure, which is the efficiency case in one line.

For energy independence, the honest position is mixed. An air-to-air heat pump gives a household a heating and cooling source that needs no gas connection and no boiler, and it can be run from a home solar array or battery during daylight hours, which is the same logic that makes homegrown energy a route to greater energy independence²¹. It does not store heat, it does not provide hot water, and it stops when the power stops. The app and voice control add a further dependence on broadband and on Daikin's own service, though the supplied remote control provides total control at the wall². A household weighing the Emura against other ways of cutting its exposure to energy prices should read home cooling and energy independence alongside the running cost figures at air conditioning running costs.