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HJ Cooper by Rinnai stainless steel mains pressure hot water cylinders are constructed from high grade duplex stainless steel and packed with features to benefit specifiers, installers and homeowners, making them exceptional value for money.
- MS18055030 = 180 L (3 kW) 550x1295
Peace of mind
This range of mains pressure electric hot water cylinders comes with a 20 year limited warranty on the inner cylinder*. You won't find a longer warranty on any other electric hot water cylinder in New Zealand! Whats more, it's backed by Rinnai after sales support.
- Energy efficient
- Curved element design ensures 98% of water is heated.
- Cold water inlet dip tubes deliver water to the bottom of the tank to avoid mixing of water
- No cylinder wraps required, all HJ Cooper cylinders meet NZ MEPS
MEPS = Minimum Energy Performance Standard
Future proof your home
Connect to a hot water heat pump or solar system with the extra eco inlet connection**, either now or in the future. Install as a low pressure system then connect, without replacing your cylinder, to the luxury of mains pressure when you are ready.
- Lightweight, stainless steel makes transport and installation are a breeze
- Low maintenance, no sacrificial anode to maintain
- Future proofed, auto reset thermostat option means these cylinders can be solar and hot water heat pump ready
The 250 and 300 L cylinders have the option of a second element making recovery times quicker and making it less likely you'll run out of hot water.
* Please see the owner and installer guide, in the 'Specifications' tab, for full warranty details
** Excludes 135 L cylinder
OTHER Models and capacities available
- MS13555020 = 135 L (2 kW)
- MS13555030 = 135 L (3 kW)
- MS18055020 = 180 L (2 kW)
- MS25055020 = 250 L (2 kW)
- MS25055030 = 250 L (3 kW)
- MS30055020 = 300 L (2 kW)
- MS30055030 = 300 L (3 kW)
Within the range there are different element sizes and configurations, and thermostat options.
- Indoor installations
- Mains and low pressure systems
- Domestic and commercial water heating applications
- Left or right hand plumbing connections
- Connection to open loop solar or hot water heat pump systems
Not suitable as a pool or spa heater.
HJ Cooper water heaters are manufactured to suit most New Zealand council water supplies. However some water supplies can have a detrimental effect on the water heater, its operation and life expectancy. Water supplies with a high level of calcium carbonate (hard water) can cause scaling on hot surfaces. We recommend a water temperature of no more than 65