Rating of instantaneous gas water heaters without a chimney: best offers and selection tips

Constant access to hot water makes life much easier. However, central hot water supply is not always uninterrupted. And connecting a summer house or a cozy cottage to it may become an impossible task.

Fortunately, a powerful gas water heater without a chimney easily solves the problem of lack of hot water even outside the city. Modern models of flow-through dispensers instantly provide households with water at the required temperature and use resources quite economically.

In this article, we have compiled a rating of the best gas water heaters that operate without a chimney, reviewed the technical characteristics and features of specific models, which will help even the most inexperienced buyer understand the main nuances of choosing a good water heater and choose the optimal type of equipment for themselves.

The main advantages of chimneyless gas heaters

Chimneyless geysers are good for many reasons. Firstly, they can be installed without adding a chimney in the traditional sense. Secondly, such equipment has a fairly high efficiency. This is due to forced air injection. Thirdly, the unit has a closed combustion chamber, which eliminates the increase in room temperature, which is especially important when operating the equipment in the summer.

However, chimneyless geysers are chosen not only for the reasons described above. They are also good because they do not burn up the oxygen in the house with their work, since they take air for functioning from the street. In addition, the housing of such devices is almost completely closed, which significantly reduces the risk of combustion products getting inside.

Advantages and disadvantages

For apartments where chimney channels are not provided, previously there was only one solution for preparing water for domestic hot water needs - an electric storage water heater. With the advent of forced-flow heaters, residents of such apartments have an alternative. This is one of the main advantages of columns with a closed combustion chamber. And here are the rest:

• there is no need to organize a flow of combustion air into the house; ordinary supply and exhaust ventilation required in accordance with the standards is sufficient;
• high operational efficiency, which means cost-effectiveness;
• gas water heaters without a chimney are fully automated and create additional comfort during operation;
• tandem fan and burner successfully smooth out changes in water temperature when opening several taps within the available power;
• The entry of various combustion products into the room is practically excluded.

Like any other water heater, a closed chimneyless water heater has some disadvantages. One of them is the high cost of the product compared to conventional flow-through units. The reason is the presence of additional expensive elements and parts in the design. But look at the problem from a different angle in this situation: the installation of the heater is planned during the construction of the house. And calculate what will cost less: installing a traditional chimney and purchasing a regular column, or installing a coaxial pipe and purchasing a turbocharged unit.

The heater, which uses a closed combustion chamber and a fan, creates some noise during operation. In addition, the device is completely dependent on the availability of electricity, so it cannot be used in areas with frequent blackouts. Or you will need an alternative source of electricity, for example, a gasoline or diesel generator.

Due to the complexity of the design, do-it-yourself maintenance and cleaning of the water heater is excluded. If you decide to install a turbocharged dispenser, be prepared to contact customer service to troubleshoot problems. More information about the products can be found by watching the video:

Main disadvantages

Before you purchase the equipment described in the article, you need to familiarize yourself with its main disadvantages, among them the following should be highlighted:

• energy dependence;
• noisiness;
• high cost;
• the need to obtain approval;
• condensation formation inside the outlet pipe.

If you like chimneyless geysers, then before purchasing one of the models you need to become more familiar with the disadvantages of such equipment. For example, many consumers are put off by energy dependence, because the design’s fan is powered by electricity. If it is turned off, the operation of the turbocharged column will be impossible.

You may also be put off by the fact that the equipment fan is quite noisy. Such devices are more expensive than traditional models. On average, the cost of a turbocharged unit is approximately 17,000 rubles. In order to install such a column, approval will be required from the organizations that are responsible for the supply of natural gas. You can’t do it without the permission of the neighbors who live on the floor above. Installing a column requires that the pipe be installed on the façade of the building, which may be prohibited by the architectural control service.

Positive reviews

Chimneyless geysers have many advantages; among the additional ones, the possibility of installation in any room should definitely be highlighted. The latter can be located in a new house or in a country building, as well as in a country house where there are no specially equipped chimneys. Such equipment can also be located in a room located in a building built according to a design that does not include the presence of gas devices.

If we compare with a traditional type geyser, then turbocharged devices do not dry the indoor air. The efficiency of the water heater is increased due to the forced removal of exhaust air. If we are talking about a standard geyser, then the combustion products exit into a common pipe by gravity. The combustion chamber of the device is completely isolated, so no foreign odors can appear in the room.

Column types

Well, the last thing worth focusing on is the types of closed water heaters without a chimney. There are two of them:

• Variables. With automatic adjustment. The column itself reacts to the temperature of the incoming water and, depending on it, increases or decreases the combustion intensity.
• Permanent. These models provide the user with the ability to independently regulate the outlet water temperature. Is it convenient? Not always. In an apartment connected to a central water supply system, this question may not arise. But in a private house, the operation of the dispenser can be affected by factors such as changes in pressure during the gas supply, an increase or decrease in the temperature of the water supplied to the dispenser, and even atmospheric pressure.

So this factor also needs to be taken into account.

That's probably all that could be said on this issue. It remains to wish your water heater many years of service, and you convenience and comfort in your own home.

If you quite often encounter problems with the supply of hot water, then you can take advantage of the excellent opportunity of overhauling the hot water supply system. To do this, you should purchase a gas water heater. However, not every home has the opportunity to install such equipment, because the column functions by removing combustion products through a chimney.

In this case, a turbocharged model, which does not have a chimney and is also known as an exhaustless column, can help out. If you decide to purchase such a device, it is recommended that you first familiarize yourself with the pros and cons of such equipment. This recommendation is due to the fact that some consumers refuse to purchase chimneyless geysers for several reasons, among them the complexity of installation should be especially highlighted.

Negative reviews

Chimneyless geysers, reviews of which should be read before purchasing such equipment, according to consumers, are also distinguished by the presence of some disadvantages. Among the disadvantages, buyers note a more complex installation compared to conventional water heaters. So, you have to drill a hole in the wall, and then carefully seal it, leaving a special nozzle outside.

According to consumers, noise will be heard not only indoors, but also outside the building. This feature cannot be called a plus. According to the owners of the equipment described, the neighbors may not like the increased noise when operating a gas device. After all, they will get the smell of exhaust gases, in addition, they will hear noise.

The main reasons why the Oasis speaker does not light up

Sometimes consumers wonder why the Oasis chimneyless gas water heater does not turn on. The cause of this malfunction may be several factors. The first thing you need to check is whether the pipes are installed correctly. The water heater has a special design that will not work if the outlet and inlet pipes are connected incorrectly.

The most common and common reason for a geyser to fail to work is the lack of traction. If clogging occurs with foreign objects or dust, the burner will simply go out. The protection system will work and shut off the fuel supply. If the column still lights up, but goes out after a while, then the reason for this may be a sensitive protective relay. When the windows are closed, the relay overheats and its protection is activated. In this case, you need to open the window or windows. This measure is temporary, because in this case the relay needs to be replaced.

Termaxi

Termaxi JSG 20R turbo

Termaxi JSG 20R turbo [gallery2 link=»file» size=»full» ids=»14518,14519"]
Modern, beautiful design. Despite the fact that this is a Chinese device, it is made at a fairly high level. It is minimalistic, devoid of unnecessary functions or technical solutions.

The Termaxi turbocharged dispenser is designed for use in places where it is not possible to organize a chimney. This model uses a coaxial pipe to remove gases, which is included in the kit.

The speaker is volatile and will not work without a constant connection to 220W. All information is displayed on the LCD display, and control occurs immediately. The outlet water temperature is displayed, which can be adjusted for your own comfort. At low pressure and low pressure, the electric ignition is triggered and the user receives hot water.

There are complaints about the fragility of the work. The speaker works well, but not for long. In this price range there are more profitable and interesting offers that will last longer.

Installation Features

Installation of a chimneyless geyser must be carried out by specialists. You can only connect the equipment to the water supply yourself. Sometimes home craftsmen also build a chimney with their own hands, making a hole in the wall. The installation of the pipe must be carried out as tightly as possible, therefore special attention must be paid to thermal insulation using adapters and couplings.

The main advantages of the Grandini JSQ24-C speaker

The chimneyless gas water heater Grandini JSQ24 C is equipment that is made in the best Italian traditions. The device is able to heat water in the shortest possible time, providing the consumer with the required amount. The design has a modern design and compact dimensions.

Installation is quite simple. Water supply will be provided in a volume of 8 liters per minute. This setting is minimal. When the temperature drops, it can be increased to 12 liters per minute. The power of the equipment is 24 kW. The column operates in automatic mode, and ignition is carried out from batteries.

How to calculate power

Firstly, why is this necessary? To ensure that while taking a shower or washing dishes, the water temperature does not suddenly drop due to the fact that the device cannot cope with heating the required amount of water.

Secondly, how to do it. And again everything is quite simple. In the device passport, the manufacturer must indicate the performance of its product. To put it simply, how many liters of water does it heat in one minute.

A simple example: the passport states that the column can heat 15 liters by 25 degrees in a minute. That is, every minute 15 liters of hot water will flow into your water supply system. Here it is necessary to take into account the temperature difference. That is, the water will not be exactly 25 degrees. The initial temperature should be added to this value. So: the water entered the column having its own temperature of 7 degrees. It heated up another 25 and the output turned out to be 32. Here is such a simple formula.

But how much water do you need in liters? The calculation is also quite simple. It is based on the fact that one water intake point accounts for approximately 5-5.5 liters per minute. That is, if all your household members simultaneously take a shower, one washes the dishes, and the third washes, then all together they will spend approximately 15 liters per minute. Agree, this rarely happens, so the power of the device given in this example is quite enough for an ordinary apartment in which a family of three or more people lives.

Piezo ignition system

A factor that in most cases few people pay attention to. However, it is also important to know this in order to choose the right model correctly. There are three ways in total:

• Piezo ignition. What a piezoelectric element is is hardly worth explaining. But it is necessary to mention that this is the most uneconomical option. This option implies a constant burning of the igniter, and therefore a constant consumption of gas, albeit in very small quantities.
• Electronic. Powered by two AA batteries, it turns on automatically when the tap is opened and does not require constant operation of the burner.
• Ignition from a microturbine. A completely autonomous function, independent of the connection to the electrical network or the presence of batteries. A mini-hydroelectric power station is installed inside the device, which generates and stores enough energy to automatically ignite.

The built-in ignition methods have virtually no effect on the price, but they have a very significant impact on the ease of use and efficiency of the device.

Positive reviews about the Oasis B-12W speaker

The chimneyless gas water heater "Oasis" has a fairly reasonable cost, which is 5,600 rubles. The equipment has compact dimensions and electronic ignition. The housing is equipped with a liquid crystal display, with which the consumer can monitor the water heating temperature. The dispenser is equipped with a multi-level security system and is adapted for use in Russian conditions. The power of the unit is 11 kW and the weight is 4.2 kg.

The main advantages of the column brand "Neva" 4505

Chimneyless geysers "Neva" are among the most popular on the market. Among others, the model that was mentioned above should be highlighted. It is equipment for flow-through heating of water. The device can use liquefied or natural gas. It is noteworthy that the unit can be connected to bottled gas.

As practice shows, 6 liters of water per minute can be obtained using this gas water heater. At the same time, harmful substances are emitted into the room 1.5 times less compared to a household gas stove. Among other things, this model is equipped with oxygen sensors and timers, which are responsible for turning off the equipment if the level of combustion waste exceeds the norm. The power of the equipment is 9 kW. You will have to pay 4,500 rubles for it.

Advantages of the geyser "Vector" JSD 11 N

This chimneyless geyser “Vector” costs 4,900 rubles. Electric ignition is provided by batteries. The productivity is slightly lower compared to other devices and is 5 liters of water per minute. The case has compact dimensions.

The minimum water pressure is 0.2 atmospheres. Additional advantages include the presence of a copper heat exchanger, which is treated with an anti-corrosion coating during the production process. The system has gas control and overheating protection. The protection is also triggered when there is no sufficient draft level in the chimney.

Ignition

Modern instantaneous water heaters, which operate without the use of a conventional chimney, have three types of ignition systems - hydroturbine ignition, piezo ignition and electric ignition. They make the speaker easy to use and safe.

Hydroturbine ignition is carried out from a hydrodynamic generator. Many modern appliances have built-in mini-hydroelectric power stations, the generator of which is installed in the water heater pipeline. The incoming water passes through the turbine, rotating its blades, and the generator begins to generate the necessary electricity for the igniter. Such water heaters do not need to install additional energy sources required for ignition.

Piezo ignition has a special element that generates electrical potential from mechanical action, resulting in a spark that ignites the burner. This kind of ignition has one drawback - the igniter must be in a burning state in advance so that when the water is turned on, the main burner will light.

Electric ignition requires connecting the speaker to an electrical network or installing batteries, such as batteries. When the tap is opened, the water pressure sensor is triggered, which gives the command to ignite the igniter using a spark gap.