Stainless Steel Mains Pressure Indoor Cylinders

• Indoor mains and low-pressure systems.
• Residential and commercial applications.
• Left or right-hand cold inlet connections.
• Not suitable as a pool or spa heater.
• System should be located and arranged so as to achieve the closest proximity to water draw off points.
• Rinnai cylinders are manufactured to suit most NZ council water supplies.
• However some supplies can have a detrimental effect on the cylinder, its operation and life expectancy.  Stainless steel cylinders are not suitable for bore or tank water.
• Water supplies with a high level of calcium carbonate (hard water) can cause scaling on hot surfaces. We recommend a temperature of no more than 65 °C to minimise scale buildup. 
• Scale reducing or water-softening devices should be considered in hard water areas.  The unit is not guaranteed against damage due to scaling. For details of water quality please refer to the water quality parameters in the warranty.

Twin coil lower element:

For new builds and renovations connecting to a wetback fire and a closed loop solar system, where the homeowner will have full electric boost when there is not enough heat from the supplementary heating sources.

Twin coil dual element:

For new builds and renovations connecting to a wetback fire and a closed loop solar system, where the homeowner wants faster recovery times, and to reduce the risk of running out of hot water. Cylinder will have higher running costs.

Twin coil upper element:

For new builds and renovations connecting to a wetback fire and closed loop solar system, where the homeowner relies heavily on heat from the supplementary heating sources. Upper element is only used to quickly heat water in the top of the cylinder.