How to choose a geyser for an apartment: parameters, characteristics, best models

How to choose a geyser

Instantaneous gas water heaters most often have small dimensions; they are an ideal choice for a small apartment. The device is connected directly to the cold water supply system and runs on both natural and liquefied gas.

The principle of operation of the column is very simple: water enters the heat exchanger, where it is heated by the combustion gas, and is immediately supplied to the mixer.

A storage geyser can hold a large amount of liquid, so it requires a lot of space. The heater heats a certain amount of water in the container and maintains the temperature for a long time.

If the water cools down, the column automatically heats it up to the desired temperature. The water container is well insulated, so the water stays hot longer.

Depending on your needs, you can choose a gas water heater with a liquid tank of 50 liters or more.

Basic selection options:

• Power. Depending on how much liquid is heated, a geyser can have a power from 6 to 30 kW.
• Type of ignition - can be automatic or semi-automatic. The automatic type of ignition is triggered when the water supply is turned on or when the water in the container has cooled.

The semi-automatic type of speakers works only if you press the piezo ignition button. Such a device increases gas consumption, since the pilot flame must always be burning.

• Burner type - can be with constant or modulated power. Devices with constant power are less convenient in places where the water pressure and, accordingly, the heating temperature often change.

A burner with modulating power automatically adjusts to the water pressure and maintains the initially set temperature.

• Type of exhaust of combustion products. A chimney column is installed if the corrugated hose can be routed into an existing chimney.

Turbocharged devices are less popular because there is a risk of the outlet paths freezing at low temperatures. In this case, it is necessary to drain the accumulated water frequently to prevent the heat exchanger from exploding.

• Safety – a geyser is a dangerous device, so you need to pay attention to the presence of protective sensors and relays.

Secondary parameters:

1. Dimensions - if this point does not matter, you can select a column, taking into account only the main characteristics and requirements. If the room does not allow you to install a large storage column, you can choose the most compact flow-through one.
2. Shape – if you will hide the device in a kitchen unit, it is better to choose a square shape of the required size.

The best gas water heater with a closed combustion chamber

The Zanussi GWH 10 Fonte
instantaneous gas water heater can be installed in a private or multi-storey building.
The device was created using modern technologies and materials. Characteristics:

• The design is made in a classic style.
• There are models with additional patterned glass on the front panel; this solution allows you to gently fit the device into any design.
• The Zanussi GWH 10 Fonte geyser operates silently, consumes gas and water economically, and is equipped with a multi-level security system.

Pros:

• the Zanussi water heater is equipped with electronic ignition, which uses two standard batteries;
• the presence of an LED display that reflects the temperature of the liquid upon exit;
• the device operates smoothly at low pressure and supplies water under even pressure;
• the burner and heat exchanger are made of stainless steel, which will significantly extend the service life;
• closed combustion chamber;
• low cost.

Minuses:

• The batteries in your electronic lighter need to be changed frequently.

The best Russian-made geyser

Ladogaz VPG 10 E is created using innovative materials and technologies that save gas and water costs.

Characteristics:

• The water heater has classic parameters and is made using modern materials.
• The column is of the flow-through type, so gas and water consumption is significantly saved.
• The high safety of the water heater is ensured by the fact that the burner only fires when water is used.

Pros:

• The gas water heater operates stably even at low pressure.
• It has a special inner layer that protects against the formation of precipitation and scale.
• The heat exchanger is made of high-quality copper, which affects the heating rate and water quality.
• The presence of several levels of security system: chimney draft sensor, overheating sensor and flame sensor.
• Automatic ignition.

Minuses:

• No display.
• Temperature changes are possible.

Old filter

The filter at the entrance to the device is clogged. The quality of the water is very low, it contains small debris, since often the mains have not undergone major repairs for a very long time, and, as a consequence of all this, our equipment suffers. The filter is located on the pipe leading to the column; to clean it, you need to unscrew the nut; if it is stuck, tap it a little on all sides, then remove the filter. If it is in good condition, simply wash it, but if it is very worn, replace it with a new one.

The best geyser with automatic water temperature control

The domestic gas water heater Neva 4510-M has many advantages, the main one of which is an affordable price.
Characteristics:

• The device is made in a classic style and has no special frills.
• The speaker has compact parameters, so it can be installed in a small apartment or in a private house.
• The column operates quietly and uniformly supplies liquid at the desired temperature even with sudden pressure changes.

Pros:

• The water heating column starts at a liquid pressure of 0.15 bar.
• Availability of two-stage flame modulation.
• The presence of an ionization sensor, due to which the gas supply stops when the burner goes out.
• Compact dimensions allow the speaker to be installed in a small bathroom or kitchen.
• Quite low cost.

Minuses:

• The water heater is not equipped with smooth flame modulation, which will not allow the use of this device at two water supply points.
• The column has a power of 17.9 kW, which allows you to heat only 9 liters per minute.

Insufficient power

Errors with power are the most common when choosing instantaneous water heaters. A person buys a flow-through heater, installs it, and suddenly it turns out that at an acceptable temperature the water flows only in a tiny trickle. And if you open the tap harder, the water is cold. This means that the heater does not have enough power. In order to wash normally in the shower, you need a water flow rate of 7 l/min. In this case, the water heater must heat 7 liters of water from 10 °C to 36 °C in a minute. What power is needed for this? Let's remember physics for 8th grade.

W - water heater power (W), c - heat capacity of the heated material (J/kg*K, water - 4183), m - mass of heated water (kg), t1 - initial temperature (°C), t2 - required temperature (°C ), t—heating time (sec). So, for the above example we get:

12.5 kW - no household wiring can withstand this. A 3.5 kW heater can provide only 2 l/min at a temperature of 36 °C. It will still be enough to wash your face and wash the dishes, but taking a shower will no longer be comfortable. And, of course, the flow is only from one tap.

But this does not mean that a low-power instantaneous water heater is completely useless. You just need to clearly understand its capabilities. He will not be able to fully provide an apartment or private house with hot water. To wash your hands or dishes, it will be quite enough. And during summer shutdowns, it may well be suitable for a shower - in the summer you need to heat less: cold water warms up more, and you can make the water cooler in the shower.

The best geyser for an apartment

Mora Top Vega 10 is a fairly popular water heating device on the Russian market.

Characteristics:

• The device heats more than 10 liters per minute.
• The geyser weighs about 2.5 kilograms.
• The device is designed for one water intake, so it can be used separately in the kitchen or bathroom.

Pros:

• Use of high quality spare parts and materials in production.
• An effective and multi-level security system, or more precisely, protection against starting without water supply and against backdraft in the chimney, the presence of fuses against water overheating.
• Robust and practical design of the device.
• Attractive appearance.
• The heat exchanger is made of copper with an efficiency of up to 93%.

Minuses:

• High price.
• Designed for one water intake.
• This model is sometimes difficult to find in stores due to the fact that the product is instantly sold out of stores.

The best geyser with turbo hood

The Hyundai H-GW2
gas water heater is made of durable and high-quality materials, which has a positive effect on its operation and extends its service life.
The small and compact device is easily installed in a small kitchen or bathroom. Characteristics:

• The water heater has a classic appearance and weighs about 8 kilograms.
• The device is made of durable, high-quality and resistant materials, which allows it to be used in any conditions.
• The column has an automatic ignition system, which has a positive effect on its performance and safety.

Pros:

• The presence of an LED display allows you to control the outlet temperature, as well as recognize errors and breakdowns when they occur.
• The device is equipped with a 4D-quard security system.

Lack of draft sensors in the turbo exhaust shut off the gas in case of danger and also prevent reverse draft. The flow sensor regulates the presence and level of liquid in the water heater.

The ionization sensor shuts off the gas in the absence of flame and in case of overheating.

• Affordable price.

Minuses:

• Cannot operate on bottled gas;
• Requires frequent battery replacement;
• Designed for one water intake.

First aid

Before looking for a breakdown and calling a repairman, check that all conditions for normal operation of the column are met.

What to look for:

• If the water is not hot enough, check the temperature regulator and, if necessary, turn it to the desired value;
• If the device is working at maximum, the pressure is very good, but you need to make the water hotter, open the tap halfway;
• Check whether the gas tap is fully open, especially if you recently turned off the gas due to repairs or departure;
• If the dispenser operates on liquid gas, call a technician to inspect the cylinder and check its serviceability;
• Check to see if the cold water is turned on anywhere;
• Compare the temperature of the hose at the dispenser and the mixer. If it is different, the tap needs to be cleaned;
• Check if the filters are clogged.

The best geyser for low water pressure

Ariston Fast Evo 11C is a natural gas instantaneous water heater. The water heater has compact parameters and operates at a pressure of 0.10 bar.

Characteristics:

• The geyser is triggered by automatic ignition, which is connected to the mains.
• This water heater can be installed in an apartment or in a country house, since its productivity is 11 liters per minute, the water heats up to 65-70 degrees.

Pros:

• The main advantages of this model include its power, which is 19 kW.
• The presence of an LED display allows you to find out the exact temperature of the outlet liquid, as well as correct a breakdown or error thanks to the appearance of special codes on the screen.
• The safety system includes a flame sensor, overheat protection and a draft sensor.

Minuses:

• One of the disadvantages is incorrect indicators on the display, since the set temperature may not correspond to the temperature of the exiting liquid.
• This model is designed for only one water intake.

Bosch WTD 18

Thermal power - 31.6 kW Heating volume - 12 l/min Input pressure - up to 12 atm Control type - electronic Ignition type - electric with open chamber

Convenient and modern gas water heater with average performance. Among the features of the model are the presence of an information display, automatic adjustment of operating parameters, electronic control of water temperature and the presence of a gas control function. Users cited ease of control, reliable operation of the security system, and the ability to operate on liquefied gas cylinders as advantages.

The best geyser for a private home

In terms of versatility, the Bosch WRD 13-2G is considered one of the best due to its fairly high power and performance.

Characteristics:

• This model can be used to supply two water intakes.
• The manufacturer offers the possibility of replacing the burner for liquefied gas.
• Compact parameters, classic shape and color allow you not to hide the water heater without spoiling the overall design of the room.

Pros:

• It has a built-in hydrodynamic generator, thanks to which automatic ignition is carried out.
• The outlet temperature corresponds to the readings on the LCD display.
• When the water pressure changes, the water heater maintains the set temperature.
• The copper heat exchanger prevents heat loss and also significantly extends the service life.

Minuses:

• The lowest pressure this model can operate with is 0.35 bar.
• High price.

Contain water leaking from the heater

An instantaneous water heater is called that because it heats the flow of water. If the water heater is not intended to be built into a hot water supply system and has a free outlet, but for some reason the water does not flow out, it quickly heats up to a boil. And this is even more dangerous than working “dry”, since it is fraught with rupture of the housing. Some of these water heaters are equipped with flow control and turn off when it decreases, but not all. Therefore, in no case should you place taps at the outlet of a simple instantaneous water heater or in any other way limit the free flow of water from it.

Source

The best gas water heater for bottled gas

Mora Vega 13 geyser can supply hot water to two points.

Characteristics:

• The model is presented in several variations, which allows you to choose the shape and size that best fits your design and space.
• It runs on natural and bottled gas, which allows it to be used in apartments and private houses.

Pros:

• A high-quality heat exchanger supplies water without changing its temperature parameters.
• The diameter of the outlet pipe can be connected to the chimney with minimal neck parameters.

Minuses:

• Very high price.
• It is difficult to find spare parts in case of breakdown.

Heat exchanger clogged

A clogged heat exchanger can also be the reason why your Bosch, Neva, or Indesit column produces boiling water at the outlet. There are many ways to eliminate this problem using purchased or self-prepared cleaning mixtures. The simplest is without removing the heat exchanger using hydrochloric acid 3-5% solution.

Unscrew the casing from the device, turn off all taps, open the hot water taps and remove any remaining water from the system. Disconnect the pipes from the heat exchanger, water may leak out, prepare a bucket. You will need two pipes, which you will connect to the inlet and outlet of the radiator, attach one of them above the level of the column, and seal the joints. Using a funnel, pour the reagent into the device.

Carry out the procedure until you get good pressure. Clean the heat exchanger thoroughly and reconnect everything.

The best gas water heater with piezo ignition

The Bosch WR 10-2P gas water heater has a lot of advantages regarding its performance and external characteristics.

Characteristics:

• The geyser has a classic shape and small parameters, making it almost invisible in the room.
• This model can be easily converted from natural gas to liquefied gas, so it is practical both in a city apartment and in a rural house.

Pros:

• Silent operation and compact parameters.
• This model can operate even with very low water pressure.
• Automatic ignition turns on when the tap is opened and turns off when the flow is turned off.
• Piezo ignition allows you to avoid purchasing an endless number of batteries, which can fail at the most inopportune moment.
• The security system includes a fire intensity regulator and a temperature sensor to prevent overheating.

Minuses:

• The disadvantages of this model include sensitivity to liquid quality.
• In the event of a breakdown, spare parts are very difficult to find, as is a specialized service center.
• To clean the water heater, you need to completely disassemble the device.

Connect the water heater to an outlet without grounding

If the water heater is grounded, then a breakdown of the heating element will most likely lead to the disconnection of the machine on the power line. But if there is no grounding, the water heater will turn into a stun gun, which will work as soon as you touch the tap or the stream flowing from it with your hands. Yes, the RCD will turn off the current faster than the water heater will kill you, but what if there is no RCD? And if there is, you are unlikely to want to check its serviceability in this way.

The best gas water heater, semi-automatic

The Bosch Therm 2000
instantaneous gas water heater has many advantages, including the ability to easily switch to liquefied gas. Characteristics:

• The classic shape, small parameters and soft shades allow the device to be used in any design.
• An electric type of burner that is powered by standard batteries.
• The presence of a copper heat exchanger significantly improves operation and performance properties.
• To use liquefied gas, manufacturers offer the use of an additional kit with a burner.
• The device operates at a minimum fluid pressure of 0.15 bar.

Pros:

• The presence of two separate handles for adjusting water pressure and power.
• The water heater has high performance and heats more than 10 liters of liquid per minute.
• The minimum diameter of the device's chimney is 11 cm.
• The use of European components, which significantly affects the service life.

Minuses:

• Availability of Chinese components, which often fail.
• Automatic ignition is too loud.
• Expensive spare parts made in Europe.

How to choose the most suitable model

A gas water heater for an apartment or a gasified house may not have the function of switching to liquefied gas. The main thing is that the security system is at the highest level.

For a summer residence, flow-through models using bottled gas would be an ideal option, since hot water consumption is kept to a minimum.

The security system should include at least the most important points, for example, flame detectors, sensors for overheating and chimney backdraft.

The ignition system does not play a particularly important role.
It all depends on your preferences and wishes. The same applies to size, color and other external parameters. Advertising from sponsors: // // //