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Rinnai EasySwap Enamel Mains Pressure Indoor Cylinder

Rinnai

Introducing the Rinnai EasySwap indoor hot water cylinder, the aesthetic choice for cylinder replacements that looks as good as it performs.

Designed as a direct swap for existing 180L top-port cylinders, this model features ports and diameters aligned to typical indoor replacement installations. The durable colour-coated steel jacket provides a cleaner, more refined finish, making replacement installations feel like an upgrade. High quality enamel construction with anodic protection ensures the cylinder performs reliably across a wide range of water conditions. Backed by a 7-year warranty, the EasySwap is built to last.

Details
Specifications

Model codes

  • ME18049020ES 2kW
  • ME18049030ES 3kW

Dimensions

  • Diameter: 490 mm
  • Height: 1715 mm
  • Cold water inlet: 120 mm

Construction

High quality glass lined (vitreous X class enamel) inner cylinder (+/- design). Sturdy corrosion resistant outer casing, and high density expanded polyurethane foam insulation.

Colour

Dune
Bunnings colour match (for touchups):
– Base Delux Vivid White
– Can size 0.25
– M OY7.75, EE OY8.25, G 0Y2.75

Connections

  • Hot and cold water connections ¾ ” (20 mm)
  • TPR ½ ” (15 mm)

Element

4-bolt cTech element positioned at the bottom of the cylinder fitted on its side

Anode

Ø21.3 mm, 1500 mm long

Pressure limiting valve

500 kPa (approx.) all models

Cold water pressure relief valve

700 kPa (approx.) all models

Thermostat

Robert Shaw black dial thermostat ST1203133
Factory set to 70 °C
Setting is between 60-70 °C

TPR

TPR supplied with the cylinders:
15 mm, 850 kPa, 10 kW, 99 °C

Weight

  • Empty 57 kg
  • Full 234 kg

Cylinder recovery times

Based on a thermostat temperature setting of 70 °C and an incoming water temperature of 15 °C. .

Model / Element / Heat up time / Recovery rate

  • 180L, 2 kW, 5 hrs 47 mins, 30 L/h
  • 180L, 3 kW, 3 hrs 51 mins, 44 L/h

Compliance

No cylinder wrap required. All Rinnai cylinders meet the NZ Minimum Energy Performance Standard (MEPS).

Market release

June 2026

Scope of use
  • indoor retrofit installations
  • mains and low pressure systems
  • residential applications

Hard or aggressive water will need to be treated in order to use this product, please test before use.

Not suitable as a spa or pool heater, or for solar thermal.

Accessories

Black ABS plastic safe tray

ABS plastic, an ideal rust resistant safe tray solution. Two styles and multiple sizes to choose from.

Read More

Galvanised safe tray

Three sizes to choose from. Galvanised safe trays are the traditional hard-wearing drip tray for New Zealand hot water cylinders.

Read More

Seismic cylinder restraint kit

Indoor cylinder seismic restraint for cylinders up to 740 mm in diameter.

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About the
Seller

For over 45 years, Rinnai has supplied New Zealand homes with a range of appliances that help Kiwis to enjoy comfortable, safe and efficient lives. We’ve designed and manufactured products especially for New Zealand homes and conditions – from heating your water, to heating and cooling your living areas. With over a million appliances sold over this time, Rinnai has established a proud reputation for quality and reliability, and become known as your total home living experts.

At Rinnai, we’re all about comfort.

Verified ArchiPro Member8 years · Since 2018