Constructed from high grade duplex stainless steel and packed with features to benefit specifiers, installers and homeowners, making them exceptional value for money.
With the 180 L or 250 L, connect to a hot water heat pump or solar system with the extra eco inlet connection now or in the future. The 250 L cylinder also has the option of a second element making recovery times quicker and making it less likely you'll run out of water.
Suitable for:
Not suitable as a pool or spa heater.
Water quality
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.
550 mm
IPX1
10 years
Not required
Hot and cold water connections ¾ " (20 mm)
Inner cylinder: High grade duplex stainless steel
Outer casing: Galvanised steel
Incoloy 825 alloy sheath element positioned at the bottom of the tank.
Maximum inlet pressure = 120 kPa
Maximum working pressure = 120 kPa
CFC-free polyurethane foam, compliant with MEPS standard
Robert Shaw 30 A contact thermostat, manually resettable at 85 °C. Thermostat can be upgraded to an auto-reset thermostat for solar and hot water heat pump applications.
| Model | Weight empty | Weight full |
| 135 L | 26.5 kg | 161.5 kg |
| 180 L | 31.5 kg | 211.5 kg |
| 250 L | 41 kg | 291 kg |
Based on a thermostat temp. setting of 60 °C and an incoming water temp. of 15 °C.
No cylinder wrap required. All Rinnai cylinders meet the NZ Minimum Energy Performance Standard (MEPS).
In all Rinnai cylinder instructions, we mandate the use of a drip tray. This is because all cylinders have the potential to leak water and cause extensive damage.
Our instructions state: The Rinnai warranty does not cover any consequential loss from leaks to the cylinder, so it’s important a suitably drained drip tray/catch pan is fitted as per AS/NZ 3500.4:2015 5.4 and G12/AS1 6.11.3. Like-for-like replacements are a grey area as most installers will only replace the cylinder to the same configuration as the cylinder that is being replaced. In these instances, Rinnai still maintains that a drip tray should be fitted. This protects the homeowner and the building from any future problems should a leak occur.
If a drip tray cannot be fitted, then look at other possible options such as:
• Locating the cylinder outside
• Using a continuous flow gas hot water heater
We realise there's a lot of information out there. Water heating is important and it's better to spend the time up front deciding on what you need and what's important.
We have an experienced customer service team that can walk you through the process. For those more complicated projects we also have a free specification service. Give us a call: 0800 RINNAI (0800 746 624)
Installation costs are difficult to provide as every installation is different. Factors such as the length of pipe required, whether you have accessories fitted, how far away you live and choosing an internal or an external unit all influence the overall cost.
If you’re interested in a Rinnai hot water heating solution, we highly recommend you contact a plumber/gas fitter who will be able to explain all the options to you.
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