Hot Water

To keep your unit running efficiently and to be covered by warranty you must understand your water quality and follow required service intervals. Refer to the manual and our comprehensive guide for more details.

Visible white or chalky deposits on the heating element, level probes or internal components may indicate mineral build-up. You may also notice slower heat-up times, inconsistent filling or nuisance alarms. These issues are more common in harsh water areas.  

Learn more about common water-related issues and how to prevent them in our Bromic Instant Boiling Water Dispenser full guide. 

Service frequency depends on water quality.  

Harsh water areas = every six months  

Normal water areas = every 12 months 

Have a qualified technician service the unit every six months, including inspection of key internal components such as the inlet strainer and water level sensor. 

Our full guide explains the recommended service schedule, what’s checked during maintenance and how to track service history.  

At Bromic we assess water quality using the Langelier Saturation Index (LSI). At operating temperature, normal balanced water falls between –0.3 and +0.3, while harsh water falls outside that band but still within warranty limits (≥ −1.0 and ≤ +0.8). Harsh water increases the risk of scale and corrosion and may require more frequent servicing.  

See our complete guide for details on LSI, warranty considerations and maintenance recommendations.  

If you’re in a harsh water area, installing an auxiliary filter and increasing your servicing frequency can help protect your unit. You should also regularly check for residue or debris on components like the inlet strainer. If you’re unsure about local water quality, contact your state water authority or local council.  

For practical tips on protecting your dispenser in harsh water conditions, see our complete guide.  

Proper water quality protects the internal components of the boiler – especially the heating element, water level probes and inlet filter. Poor water quality can cause scale, corrosion and fouling, which lead to slow heat up times, increased energy use and premature component wear.  

To understand how water quality affects performance and lifespan, read our comprehensive guide.  

Yes. The HF-318 and HF-327 3-Phase Instantaneous Electric Water units used in this project can be configured to meet a wide range of hot water demands in a variety of developments, including multi-dwelling and commercial buildings, as well as any applications requiring consistent, efficient hot water supply.  

Without central storage tanks, there is no risk of Legionella growth, corrosion, or sediment build-up. There is also no need for ongoing monitoring. Individual units can be serviced or replaced without interrupting hot water supply to other parts of the building.

For example, the units installed in the Woodlands WA project were WaterMarked to AS/NZS 3498 and installed in accordance with AS/NZS 3500. Each unit features electronic temperature control pre-set to 50°C, meeting safety requirements without requiring a separate tempering valve.