Heat pump quotes for hot water and pools
Heat pumps for your geyser or swimming pool, new installs and replacements. Tell us what you're heating and up to 3 installers quote.
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Heat pump installers that work in your area contact you with a price.
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Weigh up price, timing and what's included. Accept the one that suits you, or none.
How a heat pump saves electricity
A geyser element turns electricity directly into heat: one unit of electricity gives one unit of heat. A heat pump works like a fridge in reverse. It uses electricity to run a compressor that pulls heat out of the surrounding air and pushes it into your water, so each unit of electricity moves several units of heat.
That ratio is called the coefficient of performance (COP). A heat pump with a COP of 3 delivers about three units of heat for every unit of electricity it uses, which is why heat pumps can cut water-heating costs so sharply compared with an element. COP falls as the air gets colder, so a heat pump works harder on a frosty Highveld morning than on a summer afternoon in Durban.
Hot water heat pumps
For household hot water, there are two common set-ups:
- A split unit connected to your existing geyser. The heat pump sits outside and heats the water in the geyser you already have. It's the usual retrofit, provided the geyser is in good condition.
- An integrated unit, where the heat pump and tank come as one appliance, replacing the old geyser entirely.
Sizing
A heat pump heats water more slowly than an element, so it has to be matched to the geyser size and how much hot water the household uses, especially for back-to-back morning showers. An undersized unit runs constantly and leaves people with cold water. Ask the installer how they sized the unit for your household.
Pool heat pumps
Pool heat pumps extend the swimming season by keeping the water comfortable in spring and autumn. They're sized to the pool's volume and the temperature you want, and they work best combined with a pool cover, which stops most of the heat escaping overnight. Without a cover, even a well-sized pool heat pump struggles.
Placement and noise
A heat pump needs space and free airflow around it, so it can draw in air and blow out the cooled air. It makes a fan and compressor noise similar to an air conditioner's outdoor unit. Put it where airflow isn't blocked, and away from bedroom windows, yours and the neighbours'. In a complex, check the body corporate's rules before choosing a spot.
What heat pumps costs
A **retrofit heat pump** connected to your existing geyser usually costs **R18,000 to R30,000** installed, while a **complete heat pump water heater** for a household of two to four people costs about **R25,000 to R55,000**. Pool heat pumps run from roughly **R12,000 for a small pool to R45,000 for a large one**, installed.
- Retrofit heat pump (about 3 to 4 kW) on an existing geyser, installed
- R18,000–R30,000 per project
- Complete heat pump water heater, 150 to 200 litre, installed
- R25,000–R55,000 per project
- Complete heat pump water heater, 250 to 300 litre, installed
- R40,000–R60,000 per project
- Pool heat pump, installed
- R12,000–R45,000 per project
See the full heat pumps cost guideGet exact prices
Estimates only, last checked 28 October 2026. Get quotes for an accurate price for your job.
Before you hire: a heat pumps checklist
A heat pump connects to your plumbing and your electrics, and it's only as efficient as its sizing and installation.
Ask how the unit was sized
A good installer asks how many people live in the house and how you use hot water, or the volume of your pool, before recommending a model.
Compare the COP at realistic temperatures
Manufacturers quote COP at specific test conditions. Ask what the unit achieves at the winter temperatures where you live.
Use a registered plumber
Ask whether the plumbing will be done by a PIRB-registered plumber, and whether your municipality requires a plumbing certificate of compliance for the work.
Get the electrical connection certified
A heat pump needs its own correctly rated circuit, installed by a qualified electrician and covered by an electrical certificate of compliance.
Check the condition of your geyser
If you're connecting to an existing geyser, ask the installer to check its age and condition. Pairing a new heat pump with a failing geyser wastes money.
Ask about servicing and the warranty
Ask how often the unit needs servicing, what the warranty covers, and whether the installer services the brand they're selling.
Before you request quotes
The questions people ask us most.
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More than 200 registered service providers quote through our network. Compare quotes carefully, ask for references and photos of past work, and use the checklist on each service page before you hire.
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The heat pump installers who quote on your job contact you directly by phone or email.
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Heat Pumps questions, answered
How much electricity does a heat pump save?
A heat pump with a coefficient of performance of 3 uses about a third of the electricity of a geyser element to heat the same water. Actual savings depend on your climate, the unit and how much hot water you use.
Do heat pumps work in winter?
Yes, but they're less efficient in cold weather, and take longer to heat water. Choose a model rated for your winter temperatures, especially on the Highveld where frost is common.
Can a heat pump work with my existing geyser?
Usually, yes. A split heat pump connects to your existing geyser and heats the water in it. The geyser should be in good condition first.
Heat pump or solar geyser?
Both cut water-heating costs substantially. A heat pump works day and night and needs no roof space, but uses some electricity. A solar geyser uses almost none when the sun shines, but needs a suitable roof. The right choice depends on your home.
Are heat pumps noisy?
They make a fan and compressor noise similar to an air conditioner's outdoor unit. Place them away from bedrooms and neighbours' windows, and check complex rules before installing.
Do I need a pool cover with a pool heat pump?
Strongly recommended. Most heat is lost from the pool's surface overnight, and a cover keeps it in, so the heat pump runs far less.
Related services
- Solar GeysersSolar water heating systems and conversions of existing electric geysers.
- Swimming PoolsNew pools, pool renovations and resurfacing, and pool equipment.
- Solar PowerSolar panels, inverters and batteries for backup power and lower electricity bills.
- PlumbingLeaks, blocked drains, geyser replacements and new plumbing installations.
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