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Low Pressure Copper Indoor Cylinders

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Overview

Manufactured in NZ since the 1930's

Extensive range of capacities (9-225 L) and sizes means hot water cylinder replacement is easy.

Easy installation as connection to existing plumbing is easy with triple inlets, just choose left, right, or bottom for your cold water inlet.

Undersink range
Perfect if you need a little extra hot water—four sizes available 9-44 L.

Wetback options
Many wood, pellet fires, or burner systems can have a wetback fitted to them. A wetback can work as a valuable supplement to your hot water system.

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Where To Buy

Product Details

Suitable for:

  • low pressure indoor residential and commercial water heating applications
  • maximum operating pressures up to 76 kPa
  • left, right, or bottom plumbing connections

Not suitable as a pool or spa heater.

Technical Specifications

Warranty

5 years

IP rating

IPX1

Anode

Not required

Connections

Hot and cold water connections ¾ " (20 mm)

Construction

Inner cylinder: High grade copper
Outer casing: Galvanised steel

Element

Incoloy stainless alloy steel

Operating pressures

Maximum inlet pressure = 76 kPa
Maximum working pressure = 76 kPa

Thermal insulation

CFC-free polyurethane foam, compliant with MEPS standard

Thermostat standard

7 " Cotherm probe 20 A over-temperature thermostat, manually resettable at 85 °C

Thermostat wetback

7 " Cotherm probe 20 A (no over temperature)

Weights
Model Weight empty Weight full
9 L 7 kg 16 kg
14 L 8 kg 22 kg
22 L 9 kg 31 kg
44 L 11 kg 55 kg
90 L 16 kg 106 kg
135 L 21 kg 156 kg
180 L 26 kg 206 kg
225 L 31 kg 256 kg
Cylinder recovery times (theoretical)

Based on a thermostat temp. setting of 60 °C and an incoming water temp. of 15 °C.

  • 9 L = 32 mins (1 kW)
  • 14 L = 49 mins (1 kW)
  • 22 L = 1 hr 17 mins (1 kW)
  • 44 L = 1 hr 10 mins (2 kW)
  • 90 L = 2 hrs 38 mins (2 kW)
  • 135 L = 3 hrs 56 mins (2 kW)
  • 180 L = 5 hrs 15 mins (2 kW), 3 hrs 30 mins (3 kW)
  • 250 L = 4 hrs 51 mins (3 kW)
Compliance

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

Order codes - undersink
  • LCUS00934010 9 L 1 kW (diam. 340 mm, height 315 mm)
  • LCUS01434010 14 L 1 kW (diam. 340 mm, height 420 mm)
  • LCUS02234010 22 L 1 kW (diam. 340 mm, height 575 mm)
  • LCUS04444520 44 L 2 kW (diam. 445 mm, height 585 mm)
Order codes - standard cylinders
  • LC04444520 44 L 2 kW (diam. 445 mm, height 585 mm)
  • LC09043020 90 L 2 kW (diam. 430 mm, height 1115 mm)
  • LC09050020 90 L 2 kW (diam. 500 mm, height 820 mm)
  • LC09053020 90 L 2 kW (diam. 530 mm, height 745 mm)
  • LC13547020 135 L 2 kW (diam. 470 mm, height 1315 mm)
  • LC13550020 135 L 2 kW (diam. 500 mm, height 1165 mm)
  • LC13551020 135 L 2 kW (diam. 510 mm, height 1170 mm)
  • LC13553020 135 L 2 kW (diam. 530 mm, height 1055 mm)
  • LC13554020 135 L 2 kW (diam. 540 mm, height 1035 mm)
  • LC13555020 135 L 2 kW (diam. 550 mm, height 980 mm)
  • LC18051020 180 L 2 kW (diam. 510 mm, height 1495 mm)
  • LC18051030 180 L 3 kW (diam. 510 mm, height 1495 mm)
  • LC18053020 180 L 2 kW (diam. 530 mm, height 1370 mm)
  • LC18054020 180 L 2 kW (diam. 540 mm, height 1320 mm)
  • LC18054030 180 L 3 kW (diam. 540 mm, height 1320 mm)
  • LC18055020 180 L 2 kW (diam. 550 mm, height 1265 mm)
  • LC18055030 180 L 3 kW (diam. 550 mm, height 1265 mm)
  • LC22555030 225 L 3 kW (diam. 550 mm, height 1540 mm)
Order codes - wetback cylinders with a wetback thermostat
  • LCW13547020 135 L 2 kW (diam. 470 mm, height 1315 mm)
  • LCW13550020 135 L 2 kW (diam. 500 mm, height 1165 mm)
  • LCW13551020 135 L 2 kW (diam. 510 mm, height 1170 mm)
  • LCW13553020 135 L 2 kW (diam. 530 mm, height 1055 mm)
  • LCW13554020 135 L 2 kW (diam. 540 mm, height 1035 mm)
  • LCW13555020 135 L 2 kW (diam. 550 mm, height 980 mm)
  • LCW18051020 180 L 2 kW (diam. 510 mm, height 1495 mm)
  • LCW18051030 180 L 3 kW (diam. 510 mm, height 1495 mm)
  • LCW18053020 180 L 2 kW (diam. 530 mm, height 1370 mm)
  • LCW18053030 180 L 3 kW (diam. 530 mm, height 1370 mm)
  • LCW18054020 180 L 2 kW (diam. 540 mm, height 1320 mm)
  • LCW18054030 180 L 3 kW (diam. 540 mm, height 1320 mm)
  • LCW18055020 180 L 2 kW (diam. 550 mm, height 1265 mm)
  • LCW18055030 180 L 3 kW (diam. 550 mm, height 1265 mm)
  • LCW22555030 225 L 3 kW (diam. 550 mm, height 1540 mm)

FAQs

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
* As the world’s largest gas appliance manufacturer, Rinnai is widely regarded as the industry leader. * Rinnai products are known throughout the world for their superior quality, safety, technology and sophisticated control systems, all factories are ISO 9001 and/or ISO 14001 certified. * We have an established 40 year history in New Zealand. * Rinnai are happy to advise that we now have an IANZ accredited Test Lab for MEPS testing on Hot Water Cylinders. The lab uses the latest in test equipment and can test all type of Hot Water Cylinders for MEPS heat loss testing.
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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