Heat Pumps

Scientific tests have shown that where in a normal electric geyser one unit of electrical energy produces one unit of heat energy, with a heat pump, one unit of electrical energy produces between 2.5 and 3.5 units of heat energy.

Heat Pump Diagram

As ambient temperature increases so does the efficiency. But even at the lowest temperatures a heat pump is more efficient than an electric geyser.

We offer competitive prices. Interested? Let us Send you a Quote. We correctly install the heat pump ensuring optimal heat pump operation. Many heat pumps are not installed correctly and fail to yield expected results.

How a Heat Pump Works

Heat pump water heaters use electricity to move heat from one place to another instead of generating heat directly. To move the heat, a heat pump works like a refrigerator in reverse. While a refrigerator pulls heat from inside a box and dumps it into the surrounding room, a heat pump water heater pulls heat from the surrounding air and dumps it—at a higher temperature—into a tank to heat water.

Heat Pump Electricity Consumption

A heat pump offers you a way to use electricity to heat water efficiently. A small amount of electricity is required to operate the compressor. The quantity of heat delivered to the water tank will be 3 to 5 times the quantity of electricity used.

Where a geyser uses three units of electrical energy to produce three units of heat energy, a heat pump converts just one unit of electrical energy into three units of heat energy—hence a saving of 67%.

We Supply and Install the Following Alliance Heat Pumps


System ALLWH3.2kW
Recommended Water Tank 100 -150 litre
Water Outlet Temperature 40 - 60°C
Litres per Hour 80
Outdoor Noise Level 53 dB(A)
Maximum Pipe Length 8m
Maximum Height Difference 3m
Operating Ambient Temperature -7°C to 43°C
COP 3.7
Power Supply 220V / 50Hz
Heating Capacity 3.65kW

ALLWH5.0kW and ALLWH7.2kW

System ALLWH5.0kW ALLWH7.2kW
Recommended Water Tank 100 - 300 litre 250 - 500 litre
Water Outlet Temperature 40 - 60°C 40 - 60°C
Litres per Hour 110 160
Outdoor Noise Level 55 dB(A) 55 dB(A)
Maximum Pipe Length 8m 8m
Maximum Height Difference 3m 3m
Operating Ambient Temperature -7°C to 43°C -7°C to 43°C
COP 4.2 4.4
Power Supply 220V / 50Hz 220V / 50Hz
Heating Capacity 5.1 kW 7.4kW

Alliance Heat Pump Intelligent Controller

Alliance heat pump controller

The Alliance heat pump has an intelligent controller with LCD screen. It provides multiple temperature readings of the system and ensures automatic defrosting. The timer function allows the heat pump to be set to provide hot water at specific times.

What is the COP Ratio?

The coefficient of performance or COP of a heat pump is a ratio of heating provided to electrical energy consumed. Higher COPs equate to lower operating costs. Heat pumps must pass the 2.8 COP efficiency performance test conducted by the South African Bureau of Standards. The high COP ratios of the Alliance heat pumps indicates the effective performance and optimal electricity saving of these units.

Difference between a Heat Pump and Solar Geyser?

As the price of electricity goes up, solar hot water or a heat pump should become standard in new dwellings and when replacing existing systems.

Heat pumps and solar water heaters are different technologies that offer similar benefits. Both are designed to maximize your environmental resources and reduce your energy bills.

This difference between solar water heaters and heat pump table provides a description of the differences.