FAQ Domestic Heat Pumps


Q: How does a domestic heat pump work?

A: A heat pump works like an air conditioner in reverse. It uses a relatively small amount of electricity to extract heat from the surrounding air and then heats water with this energy. Click here for more information

Q: How much money will a heat pump save me?

A: A domestic heat pump with a COP of 4 (efficiency of 400%) will save you 75% of the electricity currently used with a normal electrical element. So, for example, a family of 4 with a 200L geyser is currently using R480/month to heat the water. If a heat pump with a COP of 4 is connected to this geyser and the current electrical element is disconnected then they will not only use R120/month to heat the water.

Q: How long does a heat pump take to heat water?

A: An ITS 4.7kW heat pump will heat the water slightly faster than a 4kW electrical element typically found in 200L geysers. The ITS 4.7kW heat pump produces 4.7kW of thermal energy under specified conditions while using as little as 1.2kW to do so.

Q: What is the average payback for a heat pump system?

A: Heat pump systems can save the home owner or business a substantial amount of money and drastically reduce global warming. At current energy prices, these systems can pay for themselves in 1-3 years, depending on the application and water usage.

Q: How long will it take to install a heat pump?

A: On average it takes less than half a day to install a heat pump system.

Q: How hot can a heat pump system make the water?

A: ITS heat pumps are designed for a maximum temperature of 60C. The heat pump can produce these temperatures even with the ambient temperature being below 0C.

Q: How much maintenance and service is required?

A: In order for the domestic / commercial heat pump warranty to remain valid, ITS heat pumps need to be serviced once a year by an accredited ITS service agents. A service entails a general system clean off, de-scaling of the evaporator & an evaluation of the parameters. Just like your car, an annual service will ensure that the unit continues to work optimally for years to come and continue to offer you the best possible saving. Call us to find out more.

Q: Can I use a heat pump water heating system with my existing hot water system?

A: Yes. ITS manufactures a special loading valve to change your normal geyser into a heat pump geyser.

Q: What are the advantages of heat pumps over solar collectors?

A: The main advantages of a heat pump are the ability to re-heat a geyser a few times per day and that it can work day and night, rain or shine. A solar system will only save you more money than a heat pump but only if the system had much more capacity than the demand and also depending on the usage pattern. The main disadvantage of a heat pump is that it is dependent on an electricity supply and so during a power failure you will need a backup generator.

Q: What is the life expectancy of a heat pump system?

A: The life expectancy of a heat pump is more than 10 years.