What is the function of a heat pump All-in-One unit?

An air-to-water heat pump consists of multiple components and, in simple terms, works as follows. In the outdoor unit, a circulating refrigerant absorbs and stores thermal energy from the surrounding air, which causes it to change its physical state. It now reaches the compressor where it is compressed, causing an increase in pressure and temperature. The – now very hot – refrigerant is then routed indoors to the indoor unit.

The All-in-One unit is so to say the centerpiece of all the interior components of the ESTIA heat pump. This is where the heat exchanger, also called the condenser, is located, where the thermal energy recovered from the surrounding air is transferred to the water.

As the temperature of the refrigerant falls, it becomes liquid again. Once the pressure and temperature have fallen further through the expansion valve, the liquid refrigerant is routed back to the exterior and the cycle starts again from the beginning.

You can find further information about how heat pumps work in the blog article "Everyone's talking about heat pumps, but how do they actually work?"

However, the ESTIA All-in-One unit is not only responsible for transferring the thermal energy from the refrigerant to the water system: it also has a water tank with a capacity of 210 liters, meaning that enough hot water is available at all times.

Thanks to the elegant, inconspicuous design and the space-saving dimensions of 170x60x67 cm, the All-in-One unit can also be used in living spaces if, for example, there is no basement in which the unit can be placed.

Placement in the kitchen or bathroom also has the advantage that the shorter the distance the water has to travel through the pipes, the faster the warm water is available from the tank. Let's be honest – you've been looking for more space for your refrigerator magnets for a while!

The unit also has a control unit at eye level which has completely new features and makes setting your heating system's most important parameters a piece of cake. But don't worry, as if the All-in-One unit is banished to the basement, it can be controlled using the separately available room remote control or with the intelligent TOSHIBA Home AC app. Thanks to the energy monitoring function, the app provides a complete overview of energy consumption and ongoing costs.

Even though it appears elegant but almost unassuming from the outside, the compact units impress with their sophisticated interior technology which ensures a comfortable and cozy climate in your home in combination with the other heat pump system components.

A summary of the most important technical features of the ESTIA All-in-One series are listed here:

• 210 liter stainless steel tank
• Control unit with new features at eye level
• E-box with access on the front for easy servicing
• Backup heater with 3, 6, or 9 kW output and expansion vessel
• Soldered DX plate heat exchanger for maximum efficiency
• Water circuit with pump for 1 or 2 zones (8 and 11 kW)
• Water flow sensor
• Exclusively vertical pipe connections
• Easy maintenance thanks to access to all components on the front
• Stylish design and compact size

The ESTIA air-to-water heat pump recovers energy from the air and transfers it to the heating system. This job is carried out by an environmentally friendly refrigerant and an efficient compressor. The heat generated during this process is transferred to the water pipe system via a heat exchanger. The domestic hot water and heating water are thus heated to the required temperature. This energy-saving system works efficiently down to frosty outdoor temperatures of -25°C.