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Energen Hybrid Systems

Energen Hot Water Heat Pumps

One of the most efficient ways to heat water after solar is through a heat pump and Energen offers a variety of heat pumps for domestic and commercial applications, hot water, spa and swimming pool heating applications.

Our Hot Water Heat Pumps use solar air heating systems that delivers hot water by efficiently utilising free and abundant source of solar energy that is available as heat in the air. Refrigerant vapour compression technology enables the heat pump to intensify this heat which is used to produce hot water.

  • Energen heat pumps have a very high COP of 4 to 4.5 between 20°C ambient and 30°C ambient.
  • For every kW of input we can get 4 - 4.5 kW of heat output -this means a very low kWh electrical input yielding a high kW heat output, in other words, buy one kWh and get 3 for free.
  • Electrical load on the grid or backup generator is very low offering a lower infrastructure cost.
Energen Hot Water Heat Pumps

Why Use Energen Heat pumps

  • EVI technology is the latest innovation for heat pump products
  • Enable to heat pumps to work well even when the ambient temperature is as low as -25°C
  • 15 years life cycle (typical)
  • Solid case and fastener design to prevent corrosion
  • Convenient: Intelligent indoor control panel with simple key operation

High Quality Components

Energen Hybrid Systems incorporate the best handpicked components from across the world

  • Copeland ZW series compressor with R417a environment refrigerant
  • Emerson expansion valve
  • Tube in tube heat exchanger and stainless steel heat exchanger
  • Saginomiya 4-way valve.

4 Way Valve

Low Noise Fan

Circulation Pump

Expansion Valve


Energen Heat Pump Controller

Heat Exchanger

Heat Exchanger

Heat Pump Options

  • Air to water heat pumps (hot water application)
  • Water to water heat pumps
  • High temperature air-water heat pump (process application)
  • Air-water Heat pumps for swimming pool heating
  • Air-water Heat pumps for spa heating
  • EVI low ambient air-water heat pumps
  • Residential series and all in one air-water heat pumps - Domestic Heat Pumps

Types of Heat Pumps

How Hot Water Heat Pumps Work

Hot Water Heat Pump Diagram

  1. Cold refrigerant absorbs heat from the air/water and becomes warm refrigerant
  2. Warm refrigerant is compressed as hot refrigerant
  3. Hot refrigerant transfers heat to water
  4. Hot refrigerant becomes cold after expanding