ACV Excellence in Hot water  >  ACV technology

 ACV Technology


Most ACV products are designed around an original " Tank-in-Tank " architecture: this enables our products to deliver outstanding hot water performance and consistently high efficiency. At the same time, the majority of the heat exchangers in our boilers and water heaters are built of stainless steel, which gives our installations an exceptionally long service life.

It comes as no surprise that our combined boilers and water heaters are selected by our customers in more than 40 countries situated at all latitudes, from Siberia (outside temperatures as low as – 65°C) to Mexico and the Persian Gulf (outside temperatures over 50°C). Do you know of any other integrated system that provides heating in the winter and hot water 365 days per year, all the while delivering exceptional performance and stability throughout the service life of the installation ?


Our benefits

All the hot water you need
ACV applies technologies best-suited to meet the demands of modern life with regard to stabile hot water supply.
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Consistently high efficiency throughout the service life of the installation
The higher the temperature of hot water, the less scaling there is.
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Sanitary and maintenance-free
The stainless steel used in Tank-in-Tank systems ensures perfect hygiene.
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Exceptional service life
Thanks to use of stainless steel and the self-descaling feature of the Tank-in-Tank system, ACV heating and hot water generating systems are assured of a long service life.
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The Tank-in-Tank system prevents the development of legionellae
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Our concepts

The Tank-in-Tank concept The HeatMaster® TC combines the unique ACV Tank-in-Tank concept with a dual primary circuit resulting in exceptional performance from a totally condensing combination boiler.

  The Tank-in-Tank concept 
The Tank-in-Tank concept Tank-in-Tank: what is it?
Tank-in-Tank: how does it work?
The benefits of the Tank-in-Tank system
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  Combined boiler and water heater 
Combined boiler and water heater ACV's combined boilers and water heaters combine central heating with the comfort qualities of Tank-in-Tank of hot water heaters. Besides the single installation and simplified maintenance, there is also a considerable space savings!
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Life long guarantee on all the hot water cylinder in the Smart range from 100 to 400 litres.
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