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Best Gas Continuous Hot Water Systems

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82 listings


Joolca HOTTAP
  • Award Winner 2020
  • 2019
  • 2018

Joolca HOTTAP · includes 2 listings

4.7 from 237 reviews

Latest review: Everything works as described, we had a minor issue that was quickly sorted out by the Customer Service department. There was a very slight leak where the shower head screwed on, this was replaced

  • Temperature Consistency
    4.4
  • Heating Speed
    4.6
  • Build Quality
    4.5
  • Value for Money
    4.5
  • Cleaning & Maintenance
    4.7
  • Noise Level
    4.7
  • Smells of GasYes (0) · No (40)

Dux Always Hot Continuous Flow
  • Award Winner 2020

Dux Always Hot Continuous Flow · includes 20 listings

4.5 from 26 reviews

Latest review: I converted from off peak HWS. The main two performance criteria I was looking for when doing my research was pressure and heat. Going on some comments I found on line and having spoken with some

  • Temperature Consistency
    4.5
  • Heating Speed
    4.2
  • Build Quality
    4.8
  • Value for Money
    4.3
  • Cleaning & Maintenance
    4.7
  • Noise Level
    4.8
  • Smells of GasYes (0) · No (5)

Rinnai Infinity Range

Rinnai Infinity Range · includes 10 listings

3.1 from 199 reviews

Latest review: Replaced an old mains gas storage heater with an Rinnai Infinity 26 with controllers to set temp. Great news is my gas consumption fell 90% (not a typo). Some lessons though. Had to replace the

  • Temperature Consistency
    2.3
  • Heating Speed
    2.7
  • Build Quality
    3.1
  • Value for Money
    2.4
  • Cleaning & Maintenance
    4.0
  • Noise Level
    3.8
  • Smells of GasYes (2) · No (11)

Thermann Gas Continuous Flow

Thermann Gas Continuous Flow · includes 3 listings

3.0 from 31 reviews

Latest review: I have had a C6 26L for 2 weeks, I cannot get it to fault as described in other posts on here. mine heats the water instantly, hot water in less than 10 seconds (3 meters from bathroom) I can turn on

  • Temperature Consistency
    3.0
  • Heating Speed
    3.2
  • Build Quality
    3.4
  • Value for Money
    3.0
  • Cleaning & Maintenance
    3.5
  • Noise Level
    3.8
  • Smells of GasYes (5) · No (6)

Rinnai B26

Rinnai B26

2.8 from 16 reviews

Latest review: Bought and installed Rinnai B26 2 weeks ago. When water is turned on high it feels like the heater is not keeping up as i feel a slight coldness every now and then. Never had this issue with old

  • Temperature Consistency
    3.8
  • Heating Speed
    2.7
  • Build Quality
    3.0
  • Value for Money
    3.0
  • Cleaning & Maintenance
    3.0
  • Noise Level
    2.7
  • Smells of GasYes (0) · No (6)

Bosch HydroPower

Bosch HydroPower · includes 3 listings

1.7 from 271 reviews

Latest review: Julia, you have to take the case off. A knob on each side at the back. Note how the cover goes back on. The knob controls the water flow. The way I set mine up is turn the hot in the shower if that's

  • Temperature Consistency
    2.4
  • Heating Speed
    2.4
  • Build Quality
    2.0
  • Value for Money
    1.7
  • Cleaning & Maintenance
    1.6
  • Noise Level
    3.2
  • Smells of GasYes (1) · No (11)

Rheem Continuous Flow

Rheem Continuous Flow · includes 21 listings

1.8 from 78 reviews

Latest review: I recently had issues with my Rheem Pronto 12 so I had it replaced with a Rheem 12. Great decision because it works perfectly. My other Rheem kept having issues but Rheem support did their best to

  • Temperature Consistency
    3.5
  • Heating Speed
    5.0
  • Build Quality
    2.3
  • Value for Money
    2.0
  • Cleaning & Maintenance
    4.0
  • Noise Level
    3.0
  • Smells of GasYes (1) · No (1)

Bosch Pilot Ignition

Bosch Pilot Ignition · includes 2 listings

2.4 from 15 reviews

Latest review: The thermocouple for this appliance dies every 12 months or so forcing you to replace it at a cost of around $100, and which isn't always the easiest to

  • Temperature Consistency
    3.0
  • Heating Speed
    4.0
  • Build Quality
    2.5
  • Value for Money
    3.5
  • Cleaning & Maintenance
    3.0
  • Noise Level
    3.5
  • Smells of GasYes (0) · No (2)

Chromagen Eternity 26

Chromagen Eternity 26

2.6 from 11 reviews

Latest review: I have had a Eternity 20 for about 10 years, one day it became "temperamental". I read all the BAD reviews and concluded that there was nothing intyrinsically wrong with the hot water system, the

  • Temperature Consistency
    5.0
  • Heating Speed
    4.0
  • Build Quality
    5.0
  • Value for Money
    5.0
  • Cleaning & Maintenance
    5.0
  • Noise Level
    5.0
  • Smells of GasYes (0) · No (1)

Rheem Metro

Rheem Metro · includes 6 listings

2.3 from 11 reviews

Latest review: It broke down under 5 years. I emailed Rheem. No warranty cover at all. They sent me a service man to check. There is nothing he can do. I was asked to get a new

  • Temperature Consistency
    5.0
  • Heating Speed
    4.3
  • Build Quality
    4.0
  • Value for Money
    4.0
  • Cleaning & Maintenance
    5.0
  • Noise Level
    4.7
  • Smells of GasYes (0) · No (3)

Bosch Optiflow Professional

Bosch Optiflow Professional · includes 3 listings

1.1 from 40 reviews

Latest review: Bosch Optiflow 16L, installed October 2017. Heater won’t heat water when I want it to. Randomly operates when I don’t want it to (wakes me up early hours of morning - heater fitted next to bedroom). W

  • Temperature Consistency
    2.1
  • Heating Speed
    1.5
  • Build Quality
    1.8
  • Value for Money
    1.1
  • Cleaning & Maintenance
    1.6
  • Noise Level
    1.3
  • Smells of GasYes (6) · No (8)

Smarttek Black Smart Hot Water System

Smarttek Black Smart Hot Water System

4.7 from 6 reviews

Latest review: Was using this unit in my mobile pet grooming van. It is easy to use and being able to adjust water flow and temperature easily is great. When it works it is great but the unit cannot be mounted and

  • Temperature Consistency
    5.0
  • Heating Speed
    5.0
  • Build Quality
    4.8
  • Value for Money
    4.8
  • Cleaning & Maintenance
    5.0
  • Noise Level
    5.0
  • Smells of GasYes (0) · No (6)

Chromagen Eternity Plus  M20

Chromagen Eternity Plus M20

3.0 from 1 review

Latest review: This is a replacement to eternity T20. Eternity T20 made in Japan but this model M20 made in China but have a 6.5star energy rating as T20was only 6star. Same type of construction but a few internal

  • TypeContinuous
  • Max Water Pressure1,200 kPa
  • Min Water Pressure 150 kPa
  • Dimensions 595 x 375 x 165 mm
  • Gas TypeLPG and Natural Gas
  • Energy Rating6.5 star(s)
  • InstallationExternal
  • LPG Consumption 160 mJ/hr
  • Nautral Gas Consumption 160 mJ/hr
  • Flow Rate20 L/min
  • Temperature Consistency
    4.0
  • Heating Speed
    4.0
  • Build Quality
    3.0
  • Cleaning & Maintenance
    4.0
  • Noise Level
    5.0
  • Smells of GasYes (0) · No (1)

Bosch Optiflow with Bluetooth

Bosch Optiflow with Bluetooth · includes 3 listings

2.7 from 3 reviews

Latest review: Bought a Bosch Optiflow with Bluetooth and what a mistake! The Bluetooth has a feeble range and cannot connect via the Apps from indoors! Our Rinnai was perfect, The supplied Remote worked from

  • Temperature Consistency
    5.0
  • Heating Speed
    5.0
  • Build Quality
    5.0
  • Value for Money
    5.0
  • Cleaning & Maintenance
    5.0
  • Noise Level
    2.0
  • Smells of GasYes (0) · No (1)

Rinnai B16

Rinnai B16

2.3 from 4 reviews

Latest review: Stay away from Rinnai and its shoddy products. I had this B16 unit installed in 2015 but it started having issues in 2018 where low hot water pressure would occur. I had my plumber look at it 3 times

  • Temperature Consistency
    1.0
  • Heating Speed
    1.0
  • Build Quality
    2.0
  • Value for Money
    1.0
  • Cleaning & Maintenance
    2.0
  • Noise Level
    3.0
  • Smells of GasYes (1) · No (1)

Bosch Hot Water & Heating Optiflow Professional External 12L

Bosch Hot Water & Heating Optiflow Professional External 12L

2.0 from 1 review

Latest review: I switched my hot water service from storage to continuous flow, and went from excellent water pressure to crap - from needing 2 minute showers to wash my short hair, to needing 15 min showers to do


Rinnai GHF4135L 135L

Rinnai GHF4135L 135L

2.0 from 1 review

Latest review: I purchased the hot water system to replace an aging Hardies Dux system. After researching I decided on the Rinnai, it had a descent warranty, the price I was able to get was good and Rinnai have a

  • TypeStorage
  • Max Water Pressure800 kPa
  • Min Water Pressure 680 kPa
  • Gas TypeLPG and Natural Gas
  • Energy Rating5 star(s)
  • InstallationExternal
  • Nautral Gas Consumption 17 mJ/hr
  • Temperature Consistency
    4.0
  • Heating Speed
    4.0
  • Build Quality
    2.0
  • Value for Money
    3.0
  • Smells of GasYes (0) · No (1)

Bosch Internal Compact

Bosch Internal Compact · includes 3 listings

1.4 from 7 reviews

Latest review: After 30 years of service our old water heater died. It was a Bosch, so we replaced it with similar characteristics Bosch product, thinking that we'll get similar quality. This is what happens -


Chromagen Eternity T20

Chromagen Eternity T20

1.0 from 2 reviews

Latest review: Was working great initially but within 4years broken due to internal leak. Lucky no electric shock happened. Forced to replace as it broken during the weekend. Very disappointed... Only 3years

  • Temperature Consistency
    4.0
  • Heating Speed
    3.0
  • Build Quality
    1.0
  • Value for Money
    1.0
  • Cleaning & Maintenance
    1.0
  • Noise Level
    5.0
  • Smells of GasYes (0) · No (1)

Bosch 32 / 32Q

Bosch 32 / 32Q · includes 2 listings

1.0 from 4 reviews

Latest review: Two Bosch 32 heaters installed in a block of units, each heater serving 9 units. The heat exchanger has failed (leaking) on one unit just outside the 5 year warranty period. Bosch will have nothing

  • Temperature Consistency
    4.0
  • Heating Speed
    4.0
  • Build Quality
    1.0
  • Value for Money
    1.0
  • Smells of GasYes (0) · No (1)

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