200L Air Source Heat Pump Water Heater — Cut Your Geyser Bill by 70%
The conventional electric geyser is the single largest electricity consumer in most South African homes — accounting for 40-50% of the electricity bill. The 200L Air Source Heat Pump Water Heater solves this by using a refrigeration-cycle heat pump to transfer heat from the outdoor air into the water tank, consuming only 25-30% of the electricity a conventional element would use to achieve the same result.
Key Specifications
- Tank Capacity: 200 litres
- Heating Element: 1.5kW heat pump compressor (draws 500W from grid at COP 3.0)
- Coefficient of Performance (COP): 3.0–4.5 (depending on ambient temperature)
- Operating Temperature Range: 5°C to 45°C ambient
- Maximum Water Temperature: 60°C
- Tank Insulation: High-density polyurethane foam
- Refrigerant: R134a (environmentally safe)
- Noise Level: Under 52dB (comparable to a quiet conversation)
- Power Supply: 220V single-phase
- Warranty: 2 years on heat pump unit, 5 years on tank (stainless steel inner tank)
How Much Can You Save?
A standard 200L electric geyser uses approximately 1,500–2,000kWh per year. At current South African electricity rates of R3.50–R4.50/kWh (Eskom and municipalities), this costs R5,250–R9,000 per year just for hot water. A heat pump water heater reduces this consumption by 65–75%, saving R3,400–R6,750 annually. Most installations achieve full payback in 2–4 years, after which the savings are pure benefit.
Suitable for All South African Climates
Air source heat pumps are effective wherever the outdoor temperature remains above 5°C — which covers virtually the entire South African population year-round. In colder climates (high-altitude Highveld winters) efficiency reduces slightly but the unit continues to operate. A backup element activates automatically on days too cold for efficient heat pump operation.
Eskom and Municipal Rebate Programmes
Many South African municipalities and Eskom’s Demand Side Management programme offer rebates for heat pump water heater installation — typically R1,500–R3,000 depending on your municipality. Contact us or your municipality for current rebate eligibility. Rebates can further shorten payback periods to under 18 months in some areas.
Installation
Our 200L heat pump water heater is installed by a certified plumber and electrician. The outdoor unit requires an unobstructed position with good airflow. The unit connects to your existing hot water distribution piping. Installation typically takes 4–6 hours for a straightforward replacement of an existing geyser.
FAQ
Does the heat pump work during load shedding?
The heat pump requires grid power to operate. However, the well-insulated 200L tank retains water temperature for 6–12 hours after the last heating cycle, meaning a full tank before load shedding typically provides adequate hot water through a Stage 4 outage.
Can the heat pump work with solar panels?
Yes — a heat pump water heater is an excellent complement to a solar PV system. Programme the heat pump to run during peak solar generation hours (10am–2pm) to heat your water entirely for free using solar energy.
How loud is the heat pump unit?
The outdoor compressor unit operates at under 52dB — similar to a quiet conversation or a refrigerator. Most homeowners find it acceptable when positioned at least 2–3 metres from bedroom windows.
Does it replace the existing geyser completely?
Yes. The heat pump water heater is a complete replacement for your existing geyser — tank, element, and thermostat. Your existing hot water piping connects directly to the new unit.





Tshepo Motsepe –
Highly recommend the 200L Air Source Heat Pump Water Heater to anyone looking to reduce their electricity bill. The COP rating means you get far more hot water per kilowatt than a conventional element. PowerVault had the best price we found and delivered quickly.
Wayne Erasmus –
Installed the 200L heat pump in Ballito and the electricity saving on the geyser alone has been dramatic. Our power bill dropped by close to R900 a month from day one. The unit is very quiet and heats the water faster than the old element geyser ever did. PowerVault recommended a good local installer who had it running in half a day. Excellent product.
Kobus Venter –
Mining town living means we feel load shedding hard in Rustenburg. The 200L heat pump slashed our geyser consumption and it keeps working on solar power during outages. PowerVault organised fast delivery and the installer they referred us to was on time and very tidy. Already recommended them to three neighbours.