New builds/renovations, heat pump
Energy-efficient and cost-effective, ideal with solar/photovoltaics. Carbon-neutral and independent of fossil fuels.
Perfect climate
Cooling and heating solutions
from TOSHIBA
A new or renovated house with an air-to-water heat pump
The ESTIA air-to-water heat pump both blends in seamlessly in new builds and renovation projects, guaranteeing efficient and reliable performance.
- New builds
Heating with an ESTIA air-to-water heat pump is one of the most environmentally friendly and cheapest heating options available. There is a great deal of freedom right from when you start planning to heat your new home with a heat pump. You don't need to include space to store fuel and all the pipework needed to heat your hot water can be taken into account when planning the building. The ESTIA All-in-One allows domestic hot water to be heated and prepared in one unit and is highly suited to all modern heating circuits with low supply water temperatures.
- Renovation
An ESTIA air-to-water heat pump is also ideally suited for renovation measures in old buildings. With an existing domestic hot water heating system, a heating system replacement is not a problem in principle. It can generally be installed in one day and the existing radiators can continue to be used. Combination with conventional, existing heating systems is also possible.
Please refine your product selection:
Heating load calculator
What heating load (kW) would I like to cover?
*Standard outside temperature: Please add declaration, e.g.:
The standard outside temperature is the lowest two-day average which is achieved 10 times in 20 years. This is therefore the approximate coldest temperature which has to be used for calculations when designing heating systems.
PDF link: https://www.oib.or.at/de/guidelines/oib-richtlinie-6-nat-pdf
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Product selection criteria
ESTIA air-to-water heat pump
Hydrobox /
All-in-One
All-in-One
The ESTIA All-in-One allows domestic hot water to be heated and prepared in one unit and is highly suited to all modern heating circuits with low supply water temperatures.
Heat pump with Hydrobox
The Hydrobox from TOSHIBA is a part of the air-to-water heat pump and is used in heating and cooling systems. This technology uses the surrounding air as an energy source for heating or cooling by recovering or radiating the thermal energy contained in it. The Hydrobox is intended as a hydraulic interface between the outdoor unit of the heat pump and the water circuit of the house – be it for underfloor heating, radiators, or for hot water preparation.
Heat pump for preparing domestic hot water
You can operate hot water heat pumps independently from your heating system, meaning that the heat pump is limited to preparing your hot water. This means that the heating system does not have to be in operation, particularly during the summer months.
Domestic hot water heat pumps are only intended to provide hot water, but cannot generate any energy for heating. Domestic hot water heat pumps have their own water tank, generally with a capacity of around 270 – 300 liters; there are also models with up to 500 liters of net capacity.
One or two
zone system
Zone selection
Different heating systems require different supply water temperatures. For a radiator, for example, the supply water temperature required is significantly higher than for underfloor heating. In this case, a two-zone system is required, while if only one supply water temperature is needed, then one zone is sufficient.
4kW –
16 kW
Size/consumption definition
The different kilowatt (kW) levels of heat pumps reflect their efficiency and adaptability to different requirements and conditions. The range of TOSHIBA air-to-water heat pump products spans 4 kW to 16 kW heat pumps.
