Thermia Calibra Eco

    • One of the lowest GWP values on the market
    • Green technology – refrigerant R452B
    • Superior performance in heating (SCOP 5.96)
    • Plenty of domestic hot water (260 liters)
    • Ultra-low sound levels (29-48 dB(A))
    • Inverter technology automatically and precisely adjusts to real-time demand
    • Versatility – for new-builds or renovations
    • Online – control your heat pump from anywhere
    • The best of Scandinavian design and functionality
Thermia Calibra Eco

Energy class when the heat pump is part of an integrated system


Energy class when the heat pump is the sole heat generator. Energy class calculated according to Eco-design Directive 811/2013



  • Superior performance throughout the year

    Superior performance throughout the year

    Calibra Eco is a ground-source heat pump with inverter technology that offers you superior performance thanks to its unique technical solutions. With an impressive seasonal coefficient of performance (SCOP) of 5.96 (at 35°C floor heating according to EN14825), Calibra Eco enables you to reduce energy consumption by up to 80%.

    SCOP is a measure that describes how efficiently a heat pump works over a full year, including warm and cold periods. It indicates the relationship between the amount of energy produced and the amount consumed. The higher the value, the better the system.

  • Let’s be more eco-friendly - low GWP

    Let’s be more eco-friendly - low GWP

    At Thermia, we are committed to healthier lifestyles and reducing our environmental footprint. That’s why Calibra Eco is the first ground source heat pump on the market with the more climate-friendly refrigerant R452B and the lowest GWP* value – 698. Moreover, thanks to its unique design, it requires a smaller volume of refrigerant than other heat pumps, resulting in a very low C02 equivalent.

    The R452B refrigerant represents innovation in every way. It is an excellent heat transfer medium that leads to greater energy efficiency and cost-effectiveness.

    * GWP stands for Global Warming Potential and is today the most accurate measure for the assessment of environmental impact level.


  • Flexibility


    Calibra Eco is available in three output sizes: Calibra Eco 8 (2 – 8kW), Calibra Eco 12 (3 – 12 kW) in both single-phase (230V) and three-phase (400V) versions and Calibra Eco 16 (4 – 16 kW) in three-phase (400V) versions. Calibra Eco features a built-in 184-liter hot water tank.

    Calibra Eco Duo is a version without a built-in hot water tank but which is designed to work with a separate hot water tank: this can be the MBH Calibra 200 or MBH Calibra 300, or any other comparable product. With a wide range of accessories, Calibra Eco can also provide cooling, heat a pool and work in combination with solar panels or additional heat sources.

  • More hot water, faster

    More hot water, faster

    The hot water tank is fitted with our TWS (Tap Water Stratification) technology, which means that hot water is produced faster and at higher temperatures than with traditional technology. Because the hot water is diluted to tap water temperature, the volume of usable hot water is considerably higher due to the high temperature.

    Inverter and TWS technology make Calibra Eco the fastest and most cost-efficient producer of hot water in its segment: 260 liters of domestic hot water at 40°C.

  • Low sound level

    Low sound level

    Its innovative mechanical design makes Calibra Eco one of the quietest heat pumps on the market. Operational sound levels for the Calibra Eco 12 model vary from 29 dB(A) up to 44 dB(A), depending on compressor speed (according to EN12102 and EN ISO 3741).

    Calibra Eco 12 is one of the quietest heat pumps on the market.


  • Inverter technology

    Inverter technology

    Continuously adjusting the heat pump’s output to current demand, inverter technology means that the heat pump can supply 100% of your energy requirements. This in turn means that there is no need for the user to pay for any auxiliary heating.

  • New intelligent control system

    New intelligent control system

    The controller coordinates and controls the heating system. Thermia heat pumps work with complete precision to give your home the best possible indoor climate at the lowest possible cost. Our controller is very easy to use.

    The system uses an algorithm that ensures the lowest possible running cost while maintaining the desired indoor temperature.

    New features:

    • Start-up assistant –step-by-step guidelines for commissioning
    • Color touchscreen and intuitive menu
    • Full overview of temperatures and curves
    • Plug-and-play software update via USB slot
    • Interface to BMS (Building Management System) – for the Smart House
  • Touchscreen controller

    Touchscreen controller

    The new controller in the inverter heat pump boasts a color touchscreen display and user-friendly icons that are easy to understand.

  • Optimum technology

    Optimum technology

    Optimum Technology is a technology that constantly monitors your system and adjusts the pump’s performance accordingly. Speed-controlled Class-A circulation pumps guarantee that daily operation is always adjusted according to the user’s requirements and conditions. That means you can be sure your heat pump is always running at its most efficient level.

  • Heating


    Most common European heating systems are water-based, with heat being distributed via radiators or underfloor heating. The output temperature of the water distribution system is usually 30-35°C for floor heating and 45-55°C for radiators. Thermia heat pumps offer a low-carbon alternative to traditional boilers in modern buildings, whether for new-builds or refurbishments and regardless of the temperature required in the heating system.

  • Cool in the summer

    Cool in the summer

    The heat pump provides heat during the winter while in the summer the process can be simply reversed. The heat pump collects heat from the house and deposits it into the ground borehole to provide cooling. That is more cost-efficient than traditional air conditioning. The Calibra Eco with an optional accessory can also provide efficient cooling for your home during the summer.

  • Pool heating

    Pool heating

    The Calibra Eco can easily be supplemented to heat your pool, all year round. In this way, you can enjoy your pool in all seasons while substantially reducing the cost of heating it.

  • Thermia Online - built-in function

    Thermia Online - built-in function

    The Thermia Online app enables you to check that your heating system is working properly, reduce the temperature when you are on holiday, or receive a notification if anything unexpected comes up. Our online system provides installers with comprehensive diagnostics data and also enables them to respond promptly to notifications or access a live feed on system performance.

    The built-in online function is part of the intelligent control system. The Thermia Online app is available for both Android and iPhone.

  • The essence of Scandinavian design and durability

    The essence of Scandinavian design and durability

    Thermia heat pumps are designed, tested and manufactured in one of the harshest climates in Europe. Swedish winters can be extreme. February is usually the coldest month, with temperatures dropping as low as -30°C or even lower in the north and heating is essential from September to May. The Calibra Eco is built on 40 years of experience in developing and supplying heat pumps.

Climate protection begins at home

Climate protection begins at home

Air and ground source heat pumps have the potential to reduce your home’s CO2 emissions by up to 75% and can act as your individual contribution to the commitment to source 32% of European energy from renewable sources by 2030.


If you have any questions please contact us

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