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Daikin Altherma 3 H MT

The quintessence of a heat pump

Daikin Altherma 3 H MT is an investment in comfort and energy savings. This air-to-water heat pump delivers heating, cooling and instant hot water—and uses less energy to do it. This system is ideal for homeowners who want to upgrade their boiler or traditional heating system to a greener and more cost-effective solution.


Complements all types of homes on the inside and out.

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Keep a quiet and relaxing ambience without disruption.

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Benefit from the latest technologies to save energy and money.

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Customise the system to fit your lifestyle and comfort needs.

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'iF' Design Award 2019 and Reddot Design Award winner 2019.



Award-winning design


Homeowners want a unit that not only performs well but also looks good in any room. That’s why Daikin aimed to create a unit with great technical features and a versatile design. These efforts earned Daikin Altherma 3 H MT, not one but two prestigious design awards.



What is great inside, should look great outside…


Clean, minimal and uncomplicated is the best way to describe the Daikin Altherma 3 H MT outdoor unit. A black horizontal grille covers the entire front plate to hide the single fan and reduce its operational sound, while the matte grey finish reflects the colour of the exterior wall to help the unit blend into different environments and landscapes. 



Silence is comfort

When operating in Standard Sound Mode, the sound pressure level of the outdoor unit is 38 dBA (at 3 meters)—that’s somewhere between birds chirping and a quiet library. On Low Sound Mode, the sound pressure is reduced to half (35 dBA at 3 meters).

Hear the Daikin Altherma 3 H MT in action

How is the sound measured

The sound power is generated by the unit itself, independently of distance and environment. The sound pressure is the sound preceived at a certain distance. The sound pressure is usually calculated at between 1 and 5 metres from the unit.


Sound power

Exceptional performance comes from within

The Daikin Altherma 3 H MT contains the latest HVAC technologies, developed in Europe for European climates. Discover the
 features that make this product stand out from the rest. 


Crafted with care

1. Modern casing

Daikin engineers collaborated with designers to bring a breath of fresh air to the traditional outdoor unit. Inspired by the excellent design of Daikin indoor units, this outdoor unit features an attractive front plate and clean lines to blend into surroundings easily.

2. High-capacity fan

High-capacity units tend to operate with two fans but this outdoor unit needs only one. The larger sized fan improves air circulation, which helps it achieve a low operational noise.




heat pump 3 H HT inside parts

3. Brand-new compressor

Daikin Europe worked with the Daikin Technology and Innovation Centre in Japan to develop a special compressor that delivers 70°C water. This high-temperature heat pump is also the first to use R-32: a more energy-efficient refrigerant that releases fewer COemissions.


4. Durable insulation

3-layer insulation and rubber pads between the bottom plate and vibration plate absorb and insulate the sounds made by the compressor while in operation. 


Beat the cold

The Daikin Altherma 3 H MT is a renewable heating solution that performs just as well in the colder climates as it does in warm. Compared to other heating systems, this range uses outdoor air to deliver the correct capacity of heat and hot water, even in temperatures as low as - 28°C.


One Solution - Multiple Combinations

The range includes one outdoor unit that is compatible with three different award-winning indoor units, all of which can be
customised to deliver heating, cooling and domestic hot water.

A look inside a house with three Daikin indoor units and an outside unit installed. Illustration.

Choose your indoor unit 

Discover the three indoor units that are part of this range and the three different settings (Three features) you can choose from to tailor the range to meet your climate needs. 

1. Wall-mounted model

A compact unit that combines with a separate tank to deliver domestic hot water. This model offers an optional cooling function.

2. Integrated DHW stainless steel tank model

A compact unit with a footprint of 595x625mm. The unit connects to a 180 or 230L tank to meet domestic hot water demand and can operate in either a cooling or bizone settings.

An outdoor and 3 indoor Daikin units.

3. Integrated ECH2O DHW tank model

The ECH2O unit comes with a thermal DHW tank of 300 or 500L that can connect to thermal solar panels. This model offers an optional cooling setting.


Four features

Heating only

The Heating Only function is standard in the Daikin product range and is available for all three indoor units. This setting provides space heating and domestic hot water. 


If you need comfort cooling in addition to heating and hot water, then the Reversible function is the best solution. Available for all three indoor units, this feature allows the system to reverse its operation to provide cooling instead of heating. This setting requires an underfloor piping system or fan coil units.


The integrated floor standing unit is the only indoor unit equipped with a Bizone setting. With Bizone, you can choose to manage and control the temperature of two seperate zones in your home that use different emitters, like radiators or underfloor heating.

Daikin Residential Controller Logo.

Daikin Residential Controller App, with voice control

  • Control the heating system from home or remotely via smartphone
  • Control the heating system with voice commands
  • Integrate with Google Assistant and Amazon Alexa
  • Other features include:
    • Scheduling for daily use or holiday mode
    • Controlling multiple units/performance boosting
    • Monitoring energy consumption

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