Smarter hot water. Warmer pools.
AERCO gas-fired tankless water heaters and high-efficiency heat pumps — supplied, installed and maintained by Oneflow Engineering.
AERCO gas-fired water heaters
Why AERCO tankless beats electric.
Lower running costs
Gas condensing heaters reach up to around 99% efficiency and avoid expensive electricity tariffs and peak demand charges.
Works through load-shedding
Gas-fired units keep producing hot water when the grid is down — only a small backup supply is needed for controls.
Endless hot water
Tankless design heats on demand, so hotels, hospitals and hostels never run out at peak times.
Smaller footprint
No large storage cylinders — compact units free up plant-room space.
Legionella safety
Little stored water and precise temperature control reduce the risk of bacteria growth.
Precise temperature
Modulating burners hold outlet temperature steady even as demand changes.
Swimming pool heat pumps
Heat pumps vs traditional water heaters and solar heaters.
3–5× more efficient
A heat pump moves heat from the air instead of making it, giving 3–5 kW of heat for every 1 kW of electricity. Electric element heaters give only 1 kW.
Works day and night
Unlike solar heaters, heat pumps keep heating on cloudy days, at night and in winter.
Lower bills than geysers
Typically cuts water-heating electricity costs by 60–75% compared with conventional geysers.
Less roof space
No large solar panel arrays — one compact outdoor unit does the job.
Longer swimming season
Pools stay at a comfortable 26–30°C all year round, not just in summer.
Lower carbon
Much lower emissions than electric resistance or diesel-fired heating.