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Natural Gas Hot Water Systems

Popular Products

Rheem 300L Hiline Solar Hot Water System TANK ONLY 52H300M775 hero image
Rheem 300L Hiline Solar Hot Water System TANK ONLY 52H300M775
Yet to be reviewed
$4,056
Compare
Envirosun 250Ltrs Heat Pump Hot Water System 250LES6013 hero image
Envirosun 250Ltrs Heat Pump Hot Water System 250LES6013
Yet to be reviewed
$2,610
$385 (13%) off RRP of $2,995
Compare
Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 60 Degrees INF26N60B hero image
Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 60 Degrees INF26N60B
Yet to be reviewed
$1,456
$1,423 (49%) off RRP of $2,879
Compare
Bosch NG External Hydro Power Continuous Flow 7716472601 hero image
Bosch NG External Hydro Power Continuous Flow 7716472601
Yet to be reviewed
$1,134
$107.89 (9%) off RRP of $1,242
Compare
Aquamax Natural Gas 50-degree Hot Water System G390SS-NG hero image
Aquamax Natural Gas 50-degree Hot Water System G390SS-NG
Yet to be reviewed
$2,142
$330.47 (13%) off RRP of $2,472
Compare
Bosch Pilot Ignition 10L Continuous Flow Natural Gas Hot Water System 9707061030 hero image
Bosch Pilot Ignition 10L Continuous Flow Natural Gas Hot Water System 9707061030
5.0 from 1 review
$851
$158.04 (16%) off RRP of $1,009
Compare
Bosch NG External Hydro Power Continuous Flow 7716462901 hero image
Bosch NG External Hydro Power Continuous Flow 7716462901
5.0 from 1 review
$927
$215.28 (19%) off RRP of $1,142
Compare
Rinnai 26L Continuous Flow 50-degree Hot Water System Natural Gas INF26N50MA hero image
Rinnai 26L Continuous Flow 50-degree Hot Water System Natural Gas INF26N50MA
Yet to be reviewed
$1,962
$917 (32%) off RRP of $2,879
Compare
Bosch Natural Gas Continuous Flow Hot Water System 7703331744 hero image
Bosch Natural Gas Continuous Flow Hot Water System 7703331744
5.0 from 2 reviews
$1,492
Compare
  • Hot Offers - New Page
Bosch NG External Hydro Power Continuous Flow 7716482601 hero image
Bosch NG External Hydro Power Continuous Flow 7716482601
5.0 from 2 reviews
$1,010
$238.36 (19%) off RRP of $1,248
Compare
Bosch Natural Gas Internal Continuous Flow Hot Water System 7702331714 hero image
Bosch Natural Gas Internal Continuous Flow Hot Water System 7702331714
Yet to be reviewed
$1,358
Compare
Rheem 28Ltrs Ultra Continuous Flow Natural Gas Hot Water Pre-Set 60 Degree 874B28NF hero image
Rheem 28Ltrs Ultra Continuous Flow Natural Gas Hot Water Pre-Set 60 Degree 874B28NF
Yet to be reviewed
$1,633
$238.10 (13%) off RRP of $1,871
Compare

Highest Rated

  • Hot Offers - New Page
Bosch Pilot Ignition Continuous Flow Natural Gas Hot Water System 9707063000 hero image
Bosch Pilot Ignition Continuous Flow Natural Gas Hot Water System 9707063000
4.0 from 4 reviews
$1,000
$257.42 (20%) off RRP of $1,257
Compare
Bosch Natural Gas Continuous Flow Hot Water System 7703331744 hero image
Bosch Natural Gas Continuous Flow Hot Water System 7703331744
5.0 from 2 reviews
$1,492
Compare
  • Hot Offers - New Page
Bosch NG External Hydro Power Continuous Flow 7716482601 hero image
Bosch NG External Hydro Power Continuous Flow 7716482601
5.0 from 2 reviews
$1,010
$238.36 (19%) off RRP of $1,248
Compare
Rinnai Infinity 26L Continuous Flow 60-degree Hot Water System Natural Gas INF26N60MA hero image
Rinnai Infinity 26L Continuous Flow 60-degree Hot Water System Natural Gas INF26N60MA
5.0 from 1 review
$2,011
$868 (30%) off RRP of $2,879
Compare
Bosch NG External Hydro Power Continuous Flow 7716462901 hero image
Bosch NG External Hydro Power Continuous Flow 7716462901
5.0 from 1 review
$927
$215.28 (19%) off RRP of $1,142
Compare
Bosch Pilot Ignition 10L Continuous Flow Natural Gas Hot Water System 9707061030 hero image
Bosch Pilot Ignition 10L Continuous Flow Natural Gas Hot Water System 9707061030
5.0 from 1 review
$851
$158.04 (16%) off RRP of $1,009
Compare

Biggest % Discount off RRP

  • Hot Offers - New Page
Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 42 Degrees INF26N42B hero image
Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 42 Degrees INF26N42B
Yet to be reviewed
$1,430
$1,641 (53%) off RRP of $3,071
Compare
Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 60 Degrees INF26N60B hero image
Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 60 Degrees INF26N60B
Yet to be reviewed
$1,456
$1,423 (49%) off RRP of $2,879
Compare
Rinnai Infinity 32L Preset 60 Degree Natural Gas Hot Water INF32N60MA hero image
Rinnai Infinity 32L Preset 60 Degree Natural Gas Hot Water INF32N60MA
Yet to be reviewed
$2,394
$1,317 (35%) off RRP of $3,711
Compare
Rinnai Infinity 16 Continuous Flow Natural Gas Hot Water Pre-Set 60 Degrees INF16N60B hero image
Rinnai Infinity 16 Continuous Flow Natural Gas Hot Water Pre-Set 60 Degrees INF16N60B
Yet to be reviewed
$1,262
$620 (33%) off RRP of $1,882
Compare
Rinnai Infinity 16 Continuous Flow Natural Gas Hot Water Pre-Set 50 Degrees INF16N50B hero image
Rinnai Infinity 16 Continuous Flow Natural Gas Hot Water Pre-Set 50 Degrees INF16N50B
Yet to be reviewed
$1,262
$620 (33%) off RRP of $1,882
Compare
Rinnai Infinity 26 Enviro Continuous Flow Hot Water System INF26EN60A hero image
Rinnai Infinity 26 Enviro Continuous Flow Hot Water System INF26EN60A
Yet to be reviewed
$2,136
$1,030 (33%) off RRP of $3,166
Compare
Rinnai Infinity 20 Continuous Flow Natural Gas Hot Water Pre-Set 50 Degrees INF20N50B hero image
Rinnai Infinity 20 Continuous Flow Natural Gas Hot Water Pre-Set 50 Degrees INF20N50B
Yet to be reviewed
$1,531
$734 (32%) off RRP of $2,265
Compare
Rinnai 26L Continuous Flow 50-degree Hot Water System Natural Gas INF26N50MA hero image
Rinnai 26L Continuous Flow 50-degree Hot Water System Natural Gas INF26N50MA
Yet to be reviewed
$1,962
$917 (32%) off RRP of $2,879
Compare
Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 50 Degrees INF26N50B hero image
Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 50 Degrees INF26N50B
Yet to be reviewed
$1,992
$887 (31%) off RRP of $2,879
Compare
Rinnai Infinity 26L Continuous Flow 60-degree Hot Water System Natural Gas INF26N60MA hero image
Rinnai Infinity 26L Continuous Flow 60-degree Hot Water System Natural Gas INF26N60MA
5.0 from 1 review
$2,011
$868 (30%) off RRP of $2,879
Compare
  • Hot Offers - New Page
Rheem 28Ltrs Ultra Continuous Flow Natural Gas Hot Water Pre-Set 50 Degree 876B28NF hero image
Rheem 28Ltrs Ultra Continuous Flow Natural Gas Hot Water Pre-Set 50 Degree 876B28NF
Yet to be reviewed
$1,329
$542.10 (29%) off RRP of $1,871
Compare
Rinnai 12L Continuous Flow 60-degree Hot Water System Natural Gas INF12N60MA hero image
Rinnai 12L Continuous Flow 60-degree Hot Water System Natural Gas INF12N60MA
Yet to be reviewed
$1,155
$428 (27%) off RRP of $1,583
Compare

Best Value for Money

Bosch Pilot Ignition 10L Continuous Flow Natural Gas Hot Water System 9707061030 hero image
Bosch Pilot Ignition 10L Continuous Flow Natural Gas Hot Water System 9707061030
5.0 from 1 review
$851
$158.04 (16%) off RRP of $1,009
Compare
Bosch NG External Hydro Power Continuous Flow 7716462901 hero image
Bosch NG External Hydro Power Continuous Flow 7716462901
5.0 from 1 review
$927
$215.28 (19%) off RRP of $1,142
Compare
  • Hot Offers - New Page
Bosch Pilot Ignition Continuous Flow Natural Gas Hot Water System 9707063000 hero image
Bosch Pilot Ignition Continuous Flow Natural Gas Hot Water System 9707063000
4.0 from 4 reviews
$1,000
$257.42 (20%) off RRP of $1,257
Compare
  • Hot Offers - New Page
Bosch NG External Hydro Power Continuous Flow 7716482601 hero image
Bosch NG External Hydro Power Continuous Flow 7716482601
5.0 from 2 reviews
$1,010
$238.36 (19%) off RRP of $1,248
Compare
Bosch Natural Gas Continuous Flow Hot Water System 7703331744 hero image
Bosch Natural Gas Continuous Flow Hot Water System 7703331744
5.0 from 2 reviews
$1,492
Compare
Rinnai Infinity 26L Continuous Flow 60-degree Hot Water System Natural Gas INF26N60MA hero image
Rinnai Infinity 26L Continuous Flow 60-degree Hot Water System Natural Gas INF26N60MA
5.0 from 1 review
$2,011
$868 (30%) off RRP of $2,879
Compare

Premium Selection

Rheem 300L Hiline Solar Hot Water System TANK ONLY 52H300M775 hero image
Rheem 300L Hiline Solar Hot Water System TANK ONLY 52H300M775
Yet to be reviewed
$4,056
Compare
Bosch Natural Gas Continuous Flow Hot Water System 7703331744 hero image
Bosch Natural Gas Continuous Flow Hot Water System 7703331744
5.0 from 2 reviews
$1,492
Compare
Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 50 Degrees INF26N50B hero image
Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 50 Degrees INF26N50B
Yet to be reviewed
$1,992
$887 (31%) off RRP of $2,879
Compare
Envirosun 250Ltrs Heat Pump Hot Water System 250LES6013 hero image
Envirosun 250Ltrs Heat Pump Hot Water System 250LES6013
Yet to be reviewed
$2,610
$385 (13%) off RRP of $2,995
Compare
Aquamax Natural Gas 50-degree Hot Water System G390SS-NG hero image
Aquamax Natural Gas 50-degree Hot Water System G390SS-NG
Yet to be reviewed
$2,142
$330.47 (13%) off RRP of $2,472
Compare
Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 60 Degrees INF26N60B hero image
Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 60 Degrees INF26N60B
Yet to be reviewed
$1,456
$1,423 (49%) off RRP of $2,879
Compare
Bosch Natural Gas Internal Continuous Flow Hot Water System 7702331714 hero image
Bosch Natural Gas Internal Continuous Flow Hot Water System 7702331714
Yet to be reviewed
$1,358
Compare
Rinnai 26L Continuous Flow 50-degree Hot Water System Natural Gas INF26N50MA hero image
Rinnai 26L Continuous Flow 50-degree Hot Water System Natural Gas INF26N50MA
Yet to be reviewed
$1,962
$917 (32%) off RRP of $2,879
Compare
Rheem 28Ltrs Ultra Continuous Flow Natural Gas Hot Water Pre-Set 60 Degree 874B28NF hero image
Rheem 28Ltrs Ultra Continuous Flow Natural Gas Hot Water Pre-Set 60 Degree 874B28NF
Yet to be reviewed
$1,633
$238.10 (13%) off RRP of $1,871
Compare
  • Hot Offers - New Page
Rheem 28Ltrs Ultra Continuous Flow Natural Gas Hot Water Pre-Set 50 Degree 876B28NF hero image
Rheem 28Ltrs Ultra Continuous Flow Natural Gas Hot Water Pre-Set 50 Degree 876B28NF
Yet to be reviewed
$1,329
$542.10 (29%) off RRP of $1,871
Compare

New and Noteworthy

Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 50 Degrees INF26N50B hero image
Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 50 Degrees INF26N50B
Yet to be reviewed
$1,992
$887 (31%) off RRP of $2,879
Compare
Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 60 Degrees INF26N60B hero image
Rinnai Infinity 26 Continuous Flow Natural Gas Hot Water Pre-Set 60 Degrees INF26N60B
Yet to be reviewed
$1,456
$1,423 (49%) off RRP of $2,879
Compare

Natural Gas Hot Water Systems

If you have access to gas piping in your area, a gas hot water system is a must. More efficient and environmentally friendly than electric alternatives, they offer quick heat-up times as well as long-lasting service.

Okay - true, the initial cost of installation is often greater than that of an electric system, but it's definitely worth it. A gas system will repay its investment quickly via the large savings you will make on your energy bills.

Appliances Online offers the "continuous flow" type of natural gas hot water system - generally the more efficient, economical and best-performing variety."

Continuous flow systems are small wall-mounted units that heat water only as you use it. When the hot tap is turned on, cold water is fed through a heat exchanger - this raises the temperature of the water that's then sent onwards through the pipe.

Natural Gas Hot Water System buying guide