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Air to water heat pump: A beginner’s guide

By August 11, 2021August 14th, 2021No Comments

Air to water heat pump: A beginner’s guide

What are heat pumps?

Before dwelling into the air to water heat pumps, it is essential to understand what a heat pump is. Heat pumps are machines that draw out heat from one place, increase it to a higher temperature and shift it to another place. Refrigerators and freezers are typical examples of machines that use heat pump technology. Read about heat pumps in detail here.

Air to water heat pumps: An introduction

Air to water heat pumps are popular in Ireland and Europe; it converts solar energy stored in the air into energy. Furthermore, the heating cost can be reduced by 80% by opting for an air to water heat pump.

Factors to consider when choosing an air to water heat pump

  • Brand of the pump
  • The efficiency/performance of the pump
  • The size of the home
  • The insulation of the house

How does an air to water heat pump work?

Known to be among the most efficient air source heat pumps. Air to water heat pumps draws heat from the outside air and shifts it to a water-based system, providing heating and access to hot water.

  • An air to water heat pump consists of two: indoor and outdoor units.
  • The process starts from the outdoor unit, positioned outside the house. The unit transfers outdoor air into the heat pump.
  • The refrigerant plays a crucial role in the process. Refrigerant consists of colourless gas, which has a boiling point far below zero. Machines such as air conditioners, refrigerators that carry heat from warm to cool areas all contain refrigerants.
  • The refrigerant is then subjected to various pressure and temperature levels created by the heat pump compressor, resulting in a considerable temperature rise. The hot gas that forms from this process can be, therefore, used to heat water.
  • Water that is heated is transferred to the indoor unit located inside the house is used in taps, showers and radiators.

What are the benefits of air to water heat pumps?

  • Various governments provide financial incentives such as grants to promote air to water heat pumps.
  • Installation of air to water heat pumps are simple because it is compact and small in size.
  • Environmental friendly as air to water heat pumps produce energy by processing air.
  • The whole process of creating heat is safe and risk-free.

SEAI grants for air to water heat pumps

SEAI offers a grant for up to €3,500. The home must have a heat loss indicator of <2 and must be built before 2011. The homes that do not qualify the requirements must make necessary updates in the form of renovations to their homes.

For commercial purposes, the government’s Support Scheme for Renewable Heat (SSRH) is made available to commercial, industrial, agricultural, district heating, public sector and other businesses. Moreover, the scheme can be used for home-based businesses.

How much does an air to heat water pump cost?

Air to water heat pumps for an average Irish home costs between €12,000 to €18,000. The cost includes the installation and price of the equipment. Furthermore, the heat pump has a small single fan which is suitable for a home up to around. Moreover, for a home up to around the cost will vary from €15,000 to €23,000. The equipment price for an air to water heat pump ranges between €3,000 to €12,000, with the average running cost coming around €600 – €1000 per year.

Is air to water heat pumps classified as renewable energy?

Yes, the International Energy Agency and the EU view air to water heat pumps as a renewable energy source mainly because it extracts free heat from the environment. Moreover, if the energy used to power them is generated from solar panels or wind turbines, it further concretes the idea of renewable energy.

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