Rating of instantaneous gas water heaters without chimney: the best offers and tips for choosing

The modification of the Therm 4000 S series of the Bosch brand is distinguished by standard dimensions, thanks to which the column can be placed even in a small room.

Despite its relatively modest performance, the water heater, designed for one point of water intake, is quite powerful. Therefore, with it, the water is heated almost instantly to 60 degrees. It is also convenient that the Bosch Bosch WTD 12 AME model works without interruptions even with a low water pressure at the inlet: the unit only needs 0.1 atm to start the heating process.

Pleasing and gas consumption: this column consumes 2.1 cubic meters. m / h when connected to a common gas pipeline and 1.7 cubic meters. m / h when working from a cylinder. Electric fuel also contributes to fuel economy, from which the burner switches on exclusively when the valve is opened.

Specifications:

• power - 20.8 kW;
• productivity - 8 l / min;
• minimum / maximum water pressure - 0.1 / 12 atm;
• type of control - electronic;
• Dimensions (WxHxD, mm) - 300x568x170.

Bosch WTD 12 AME can be called the optimal model for houses with low pressure in the water supply. And work on liquefied gas from a cylinder allows the use of equipment even where gasification has not yet been implemented.

The budget column from Oasis has a small capacity, but fully compensates for it with its dimensions and low weight of 4.2 kg. It is one of the most compact in height and depth, making it suitable for small rooms or even niches. Electric ignition is carried out by batteries, which makes the device completely independent of the mains.

A bonus is the operation in conditions of reduced pressure in the gas pipeline. For a normal start of heating the model, a pressure of 0.02 MPa is sufficient. At the same time, the column maintains a high efficiency of more than 90%. The manufacturer provides an opportunity to limit the maximum temperature of water heating, which saves gas.

Specifications:

• power - 11 kW;
• productivity - 5 l / min;
• minimum / maximum water pressure - 0.2 / 8 atm;
• type of control - mechanical;
• Dimensions (WxHxD, mm) - 290x370x120.

Oasis B-12W is installed vertically with a lower eyeliner. A multi-level security system makes operation as reliable as possible, which is especially important for families with children.

Among gas water heaters operating without a chimney, the Chinese-made model stands out for a more compact depth, which provides a fairly flexible installation. Roda JSD20-T1 is equipped with a gas control system and makes it possible to limit the temperature of water heating.

A useful feature of the model is a reliable anti-freeze system. As soon as the heat exchanger temperature drops below +5 degrees, the built-in ceramic heating elements automatically start heating the water in the tubes.

The model is maximally adapted to work in conditions of low gas pressure and is extremely sensitive to the opening of a water tap. In addition to the integral gas control, the water heater is equipped with protection against overheating and exceeding the permissible water pressure.

Specifications:

• power - 20 kW;
• productivity - 10 l / min;
• minimum / maximum water pressure - 0.3 / 8 atm;
• type of control - mechanical;
• dimensions (WxHxD, mm) - 330x515x140.

The modification is extremely protected from pressure or temperature surges, has internal control systems, therefore it is optimal for installation in problem housing with old communal utilities.

Another Bosch model in the review, able to provide homes with hot water that are not connected to the gas supply network. It features faultless build quality and reliable performance. In addition to limiting the maximum heating of the carrier, the column has a flame modulation system. The option allows you to adjust the strength of the fire, strictly maintaining the set water temperature.

The heat exchanger itself is made of high-quality copper without undesirable impurities, resistant to burning. The model is assembled to the conscience and is practically not subject to breakdowns.

Specifications:

• power - 25.4 kW;
• productivity - 10 l / min;
• minimum / maximum water pressure - 0.3 / 12 atm;
• type of control - electronic;
• Dimensions (WxHxD, mm) - 300x568x170.

Bosch WTD 15 AME belongs to the Therm 4000 S series. It is characterized by economical consumption of blue fuel and has a spectacular design. This model can be recommended to consumers who are willing to overpay for reliability, smooth operation and a decent level of equipment safety.

The turbocharged column SF0420T bal is just that gas water heater working without exhaust, which is ideal for working with unstable water pressure. After all, the Superflame brand itself was registered in Spain, most of the brand's products are focused on Europe. But after entering the Russian market, the manufacturer improved the speakers to suit the operating conditions in the CIS countries.

A pleasant bonus for buyers of brand water heaters is the opportunity to support the domestic manufacturer, because the equipment is assembled at the Tula gas equipment factory and meets the ISO 9001-2011 standards.

The protection system is made at the highest level: the functionality will not allow the column to turn on without water, which protects the heat exchanger from burnout. An overheat blocking unit is also provided. Of particular note is the filigree setting of gas and water flow, carried out by two rotary knobs.

Specifications:

• power - 20 kW;
• productivity - 10 l / min;
• minimum / maximum water pressure - 0.25 / 7.5 atm;
• type of control - mechanical;
• Dimensions (WxHxD, mm) - 320x520x150.

The model is optimal for use in buildings with low pressure in water pipes. It is recommended for purchase to anyone who wants to independently adjust the potential fuel and water consumption in accordance with their needs.

Inexpensive model with an extremely wide range of useful additions. Gorenje GWH 10 NNBW is equipped with a thermometer, on and heating indicators, which greatly facilitate monitoring the operation of the equipment.

The number of integrated defense systems is also impressive. The model is not susceptible to freezing, has water and gas filters, and is blocked from overheating. Additionally, it allows you to adjust the threshold for heating water, which makes it possible to reduce gas consumption.

Specifications:

• power - 20 kW;
• productivity - 10 l / min;
• minimum / maximum water pressure - 0.2 / 10 atm;
• type of control - mechanical;
• Dimensions (WxHxD, mm) - 327x590x180.

The model is undemanding to the pressure of water in the system. Technical parameters and the quality of the assembly performed significantly exceed the price segment of the product.

Bosch WTD 18 AME is a canonical model that embodies all the advantages of the Therm 4000 S. It has the highest power rating. Economical gas consumption is possible due to the presence of an atmospheric burner that carefully mixes fuel with air.

The accuracy of water heating is adjustable up to 1 degree, so that the heater optimally adapts to the needs of the family. The self-diagnosis system and protective system level the likelihood of malfunctions or emergency situations.

A high-quality copper heat exchanger lasts for years, so the Bosch WTD 18 AME is practically not prone to breakdowns, and any inaccuracy in operation is instantly displayed on the display. The device is able to modulate the flame depending on the current conditions, so the given outlet temperature is simply maintained perfectly.

Specifications:

• power - 31.6 kW;
• productivity - 12 l / min;
• minimum / maximum water pressure - 0.3 / 12 atm;
• type of control - electronic;
• dimensions (WxHxD, mm) - 364x568x175.

Bosch WTD 18 AME is ideal for those who need a high heating temperature with a relatively economical cost of resources. This column is extremely reliable and productive, therefore, fully justifies its cost.

Like competing models from Bosch, the Compact C 350 F from DEMRAD can run on LPG and main gas with proper configuration. The removal of combustion products is turbocharged, the pilot flame is completely absent, which greatly facilitates operation. An additional advantage of the modification is the ability to service up to three points of water intake.

The security system of the device is carefully thought out. The model has fuses for extinguishing the flame, overheating of the heater, increasing the pressure in the water circuit. Additionally, a water flow sensor and pilot burner controller are integrated in the unit.

Specifications:

• power - 27.9 kW;
• productivity - 14 l / min;
• minimum / maximum water pressure - 0.5 / 10 atm;
• type of control - mechanical;
• dimensions (WxHxD, mm) - 383x685x283.

One of the most protected columns in the rating should be bought by those who value the safety of operation. High performance of the model will be a pleasant bonus and will complement the pleasant impression of using the model.

With a relatively modest power and performance, the Termaxi JSG-20R heats the water to the limit of 65 degrees, so that the user can debug the temperature that is most comfortable for himself. Moreover, the nominal gas flow rate is only 2 cubic meters. m / h The equipment itself complies with ISO 9001 standards, which serves as an additional confirmation of the high quality of the model.

Electric ignition is carried out from the network, which makes the water heater vulnerable to voltage surges, however, it saves money without buying batteries or accumulators.For smooth operation, many users recommend installing Voltage regulator.

The gas unit has a Winter / Summer switch, so in the warmer months the user can reduce fuel consumption by about 25%.

Specifications:

• power - 20 kW;
• productivity - 10 l / min;
• minimum / maximum water pressure - 0.2 / 6 atm;
• type of control - electronic;
• Dimensions (WxHxD, mm) - 350x560x142.

The model is extremely economical and fully meets the needs of a family of 3-4 people. Working at low pressure in the water supply system makes it possible to install the Termaxi JSG-20R even on the upper floors, which so often lack water pressure.