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Comparison Cooper&Hunter CH-HP10SINK3 9 kW vs Bosch Compress 7000i AW 9B 9 kW

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Cooper&Hunter CH-HP10SINK3 9 kW
Bosch Compress 7000i AW 9B 9 kW
Cooper&Hunter CH-HP10SINK3 9 kWBosch Compress 7000i AW 9B 9 kW
Outdated ProductOutdated Product
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Main
Smartphone control
Heat sourceair-waterair-water
Suitable forheating and DHWheating and DHW
In box
In box
indoor unit (hydromodule)
outdoor unit
indoor unit (hydromodule)
outdoor unit
Specs
Operating modeheating and coolingheating and cooling
Max. heat output9.7 kW
9 kW /at A7/W35/
Heat output (~ 0 °C)5.04 kW
Max. cooling output9.2 kW9.25 kW
Power consumption (heating)
2.19 kW /2.46 kW (heating/cooling)/
Power source230 V230 V
Minimum operating temperature-25 °C-20 °C
Max. water temperature70 °C62 °C
Compressor
inverter
inverter
Energy efficiency
t°C outside77
Supply t°C35 °C35 °C
COP4.24.93
t°C outside-7
Supply t°C35 °C
COP2.96
More specs
Control via smartphone+
RefrigerantR410AR410A
Noise level31 dB52 dB
Country of brand originUSAGermany
Dimensions981x500x324 mm700x485x386 mm
Outdoor unit dimensions980x788x427 mm1380x930x440 mm
Hydromodule weight56 kg30 kg
Outdoor unit weight85 kg115 kg
Added to E-Catalogaugust 2019july 2018

Max. heat output

The maximum heat output generated by a heat pump is the amount of heat it can transfer from the outdoors into the heating system and/or domestic hot water.

The heat output is the most important spec of a heat pump. It directly determines its efficiency and ability to provide the required amount of heat. Note that this spec is shown for optimal operating conditions. Such conditions are rare, so the actual output heat is usually noticeably lower than the maximum; this must be taken into account when choosing. There are special formulas for calculating the optimal value of the maximum heat output, depending on the specific condition.

Heat output (~ 0 °C)

Heat output is the amount of heat generated by a heat pump at a source temperature (air or ground - see above) of about 0 °C. This indicator is more visual and closer to reality than the maximum heat output (see above), so it is often indicated in the characteristics as the main one.

The required heat output depends on the area and some features of the room, on the need for hot water and a number of other factors; for its calculation in special sources, you can find the appropriate formulas.

Max. cooling output

Maximum cooling output delivered by the pump.

The pump operates in the cooling mode removing excess heat from the room to the environment — it plays the role of an air conditioner. The required cooling capacity depends on the area of the building, the specs of its thermal insulation and some other factors; methods of its calculation can be found in special sources. Also note here that conventional heating equipment (radiators, underfloor heating) is not suitable for cooling, for this it is necessary to use special equipment (for example, fan coil units).

Power consumption (heating)

Electric power consumed by the heat pump when operating only for heat transfer, without the use of an additional heating element (if any, see below). The ratio of thermal power to power input determines the thermal coefficient COP (see below) and, accordingly, the overall efficiency of the unit. It also affects overall power consumption (and therefore electricity bills), as well as some power and connection requirements — for example, models powered by 230 V and with a power of more than 5 kW cannot work from an outlet and require a special connection to the mains.

Minimum operating temperature

The lowest ambient temperature (air or ground, see Heat source) at which a heat pump can safely and reasonably efficiently perform its functions. Efficiency at minimum temperature, of course, is noticeably reduced, but the device can still be used as a heat source.

The data on the minimum operating T allows you to evaluate the suitability of the pump for the cold season.

Max. water temperature

The highest temperature to which the pump can heat the coolant. It is worth noting that such indicators can be achieved at a fairly high temperature of air or ground. And since heat pumps are used during the cold season, the actual maximum temperature, usually, is less than theoretically achievable. Nevertheless, this parameter makes it possible to evaluate the capabilities of the unit or its suitability for certain tasks.

COP

The COP (coefficient of performance) is a key characteristic that describes the overall efficiency of a heat pump. It represents the ratio between the thermal power and power consumption of the unit (see above) – in other words, how many kilowatts of thermal energy the pump produces per 1 kW of electricity consumed. In modern heat pumps, this figure can exceed 5.

However, note that the actual COP value may vary depending on the outside temperature and the supply temperature. The higher the difference between these temperatures, the more resources are needed to “pump” thermal energy and the lower the COP will be. Therefore, in the specifications it is customary to indicate the COP value for specific temperatures (and in many models – two values, for different options) – this allows you to evaluate the actual capabilities of the unit.

t°C outside

Outside temperature for which an additional COP is given. See below for details on this coefficient and the value of the outdoor temperature.

Supply t°C

Temperature in the flow pipe for which an additional COP is specified. See below for more details on this coefficient. And this temperature is the temperature of the heat carrier at the outlet of the pump, at which the given COP value is reached.

Note that manufacturers often go to the trick and measure COP for a relatively low temperature (much lower than the maximum temperature of the heat carrier — for example, 35 °C for a model with a maximum of 55 °C). This allows them to give quite impressive performance figures in the specifications. However, at higher temperatures, the actual energy cost per unit of thermal power will be greater and the actual COP will be lower.