TOP 8 best gas instantaneous water heaters



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The presence of hot water today is considered one of the indicators of comfort. A flowing gas water heater is a practical device. For more than a decade, flowing gas water heaters have made it possible to use this boon of civilization around the clock. It heats up water almost instantly.

How to choose and what to look for?

When choosing an instantaneous water heater, you should pay attention to the following parameters:

  1. Power. The performance of the device depends on this setting. It is worth considering the number of people who can use hot water at the same time. For example, a device with a power of 17-20 kW is suitable for 1-2 people and heats 10 liters of water per minute. To use 2-3 mixers at the same time, you need a unit with a higher power from 20 to 26 kW. For large private houses, it is recommended to install appliances with a power of more than 26 kW.
  2. Performance. Shows how much water the column heats up in one minute. This indicator is indicated in the documentation for the product. Since one tap passes 6-7 liters per minute, a gas heater with a capacity of 13 liters per minute is suitable for an apartment with two mixers.
  3. Heating temperature. The hotter the water is, the more cold water can be saved. Units that heat water up to 75-80 ° C are considered optimal.
  4. Internal coating of the device. Speakers are made of steel and copper. Steel is a more budgetary material, but despite this it is quite practical, as it is resistant to corrosion and high temperatures. The main advantage of copper is its greater heat dissipation.
  5. Ignition type. The gas is started by turning a knob or pressing a button. The second option is the most convenient, since direct contact with fire is excluded.
  6. Removal of combustion products. Water heaters are available with or without a chimney. The first option is suitable for residents of private houses. Models without a chimney are more often installed in city apartments. To remove the products of combustion, a hole is made in the wall and forced ventilation is organized.

Rating of gas instantaneous water heaters

8 Gorenje GWH 10 NNBW

Gorenje GWH 10 NNBW

The geyser operates on natural gas. In a minute, the unit will heat up to the desired temperature about 10 liters of water. A technique of this performance is suitable for a small family — a maximum of three people.

A copper heat exchanger is installed in the water heater, ignition occurs automatically when the water tap is opened. Batteries are required to turn on.

The front panel of the GWH 10 NNBW has a temperature display and two control levers. The column works when water is supplied at a pressure of 0.2-10 atm, so the water heater starts up even at low pressure.

Briefly about the product

  • useful power: 20 kW
  • combustion chamber type: open
  • dimensions (WxHxD): 327x590x180 mm
  • installation: vertical on the wall with bottom connection (½’)
  • control: mechanical
  • protection systems: antifreeze mode, gas control, overheating
  • indication: on, heating

7 Zanussi GWH 12 Fonte

Zanussi GWH 12 Fonte

Instantaneous water heater made of steel. It is able to heat water up to 50 degrees almost instantly. It is distinguished by simple mechanical control and the presence of electronic ignition, which excludes contact with fire when the device is turned on.

The burner is made of stainless steel. The copper heat exchanger provides long service life of the device.

Briefly about the product

  • useful power: 24 kW
  • combustion chamber type: open
  • dimensions (WxHxD): 350x610x190 mm
  • installation: vertical on the wall with bottom connection (½’)
  • control: mechanical
  • protection systems: from overheating, from switching on without water
  • indication: on

6 Electrolux GWH 11 PRO Inverter

Electrolux GWH 11 PRO Inverter

Robust model made of high quality materials, easy to use and durable. Equipped with an electronic display. The flame is adjusted automatically according to the volume of water. The display shows the water temperature and other parameters.

Due to the copper heat exchanger, the water temperature is stably maintained.

Briefly about the product

  • useful power: 22 kW
  • combustion chamber type: open
  • dimensions (WxH): 330×550 mm
  • installation: vertical on the wall with bottom connection (½’)
  • control: electronic
  • protection systems: from overheating, from switching on without water
  • indication: on
  • functions: self-diagnosis

5 Zanussi GWH 10 Fonte Glass La Spezia

Zanussi GWH 10 Fonte Glass La Spezia

A practical device for heating water. Suitable for private houses and apartments. Equipped with a multi-level protection system. The flame is automatically controlled according to the volume of water. In case of accidental attenuation of the fire, a sensor is activated that stops the gas supply.

The burner is made of stainless steel, resistant to prolonged heating.

Briefly about the product

  • useful power: 20 kW
  • combustion chamber type: open
  • dimensions (WxHxD): 330x550x191 mm
  • installation: vertical on the wall with bottom connection (½’)
  • control: mechanical
  • protection systems: from overheating
  • indication: on, heating

4 Bosch WR 10-2P23

Bosch WR 10-2P23

Flowing water heater at a moderate cost. Equipped with a chimney for the removal of combustion products. The heat exchanger is made of pure copper without the addition of impurities, which ensures rapid heating of water. The body is made of stainless steel, resistant to corrosion and mechanical stress.

Due to the high power, the device is able to heat up 10 liters of water in just a minute.

Briefly about the product

  • useful power: 17.4 kW
  • combustion chamber type: open
  • maximum water temperature: 60 °С
  • dimensions (WxHxD): 310x580x220 mm
  • installation: vertical on the wall with bottom connection (¾’)
  • control: mechanical
  • protection systems: from overheating

3 Zanussi GWH 10 Fonte Turbo

Zanussi GWH 10 Fonte Turbo

A popular model from a reliable manufacturer of home appliances. The device is made of stainless steel. The copper heat exchanger provides the device with high performance.

The column runs on natural gas.

Thanks to simple and clear control, it is easy to use the device.

Briefly about the product

  • useful power: 20 kW
  • combustion chamber type: open
  • dimensions (WxHxD): 330x550x190 mm
  • installation: vertical on the wall with bottom connection (½’)
  • control: mechanical
  • protection systems: antifreeze mode, overheating

2 Instantaneous gas water heater Innovita Primo 11i

Flowing gas water heater Innovita Primo 11i

Expert reviews on Innovita Primo gas water heaters are not yet common, since instantaneous gas water heaters from this company have appeared on the Russian market quite recently. Buyers have already evaluated water heaters from Italian manufacturers such as Ariston or Zanussi.

But time does not stand still, and new “players” gradually appear on the gas equipment market, competing with even more well-known brands. This Italian company produces both wall-mounted gas boilers, and modern aluminum radiators for heating, and geysers of the Primo series, which are assembled at a factory in Iran.

Briefly about the product

  • useful power: 21.8 kW
  • dimensions (WxHxD): 314x592x227 mm
  • installation: vertical on the wall with bottom connection
  • control: mechanical
  • protection systems: gas control

1 Electrolux GWH 12 Nano Plus 2.0

Electrolux GWH 12 Nano Plus 2.0

A practical unit at a moderate cost, equipped with a digital display showing the water temperature. To protect against, a safety valve and a special sensor are provided, which turns off the device when the flame is attenuated.

Using the device is simple thanks to the familiar mechanical control.

Briefly about the product

  • useful power: 24 kW
  • combustion chamber type: open
  • dimensions (WxHxD): 350x610x183 mm
  • installation: vertical on the wall with bottom connection (½’)
  • control: mechanical
  • protection systems: gas control, from overheating, from switching on without water
  • indication: on, heating
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