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Geyser “Neva” – the most popular domestic brand in the field of gas equipment. These devices have earned the reputation of reliable and convenient speakers at an affordable price for the Russian consumer. These water heaters are manufactured by JSC Gazapparat.
About Us
The history of the Gazapparat enterprise began in 1945, when gas deposits were discovered near Saratov. This was the impetus for the construction of a plant for the production of gas equipment. At first, gas stoves and stove burners were made here. Later they began to produce water heaters, which were constantly improved and modernized.
Columns of the Gazapparat company are a worthy competitor to imported analogues. The equipment of the Russian plant can operate in a variety of climatic conditions. The company’s products are imported to Europe, Africa and Asia.
Design
Structurally, the columns “Neva” are:
Flowing. They are compact – small dimensions are achieved due to the absence of a storage tank. Such devices are suitable for small, well-ventilated rooms. The productivity of flow devices is low. If a flow column is bought to serve several water intake points, you will have to choose a version with high power.
Flow type devices are more often chosen by apartment owners.
Cumulative. They have impressive dimensions. Tank capacity – 50-500 liters. It contains hot water. Effective thermal insulation prevents its cooling. To use hot water, you do not need to start the device every time. Storage columns are equipped with efficient heat exchangers.
The disadvantage of such water heaters can be considered dimensions – due to their large dimensions, they have to be installed in special rooms, in basements or attics. Such devices are usually purchased for private homes. If the consumer opts for the Neva 4511 storage type version, the weight of the water tank should be taken into account – a concrete base will have to be prepared.
What is the performance
This parameter can be specified in l/min. When choosing a performance, you need to take into account that one mixer passes no more than 7 liters per minute. If the device is purchased to service two points of water intake – in the kitchen and bathroom, you will need equipment with a capacity of at least 13 l / min.
What should be the water pressure
The normal operation of water heaters requires a certain pressure in the water pipes:
- minimum – if it is below the set value, the launch will not occur;
- maximum – it is able to withstand the heat exchanger.
The first parameter is especially important for flow versions: they will not turn on if there is insufficient pressure and there will be no hot water. This characteristic is especially important for residents of old houses with worn out systems, where pressure is often low. Such buyers need to choose options with a minimum threshold of no more than 0,15 bar.
Equally important is the maximum value that the device can withstand. In the water supply system, there are water hammers, leading to short-term increases in pressure. Such situations can lead to rupture of the coolant. Experts recommend buying devices that can withstand 11-12 bar.
Ignition type
Neva water heaters have the following type of ignition:
- Manual. To turn on the column, the user has to press the ignition button and bring fire to the igniter. Old models made in the last century are equipped with this method of ignition. This is an inconvenient, and most importantly, unsafe way to start. In addition, this is an uneconomical option: the wick burns constantly, wasting gas.
- Piezo ignition. This method of ignition, for example, in modification 3208. Fire is activated by pressing a button. The first ignition of the wick is done manually – for this, two buttons are pressed at once: gas and piezo ignition. In the future, to start the device, you only need to open the tap – the igniter will set fire to the main burner and a hot stream will appear at the outlet. The disadvantage of this type of ignition is the constant burning of the igniter.
- Electric ignition. Instead of a wick, a source of electricity is used, which is powered by batteries. This method saves gas. This type of ignition is for models 4511, 5011 and 5014.
Electric ignition is the most modern and convenient way to start. Automatic ignition can be volatile and non-volatile. The first option is bad because when the electricity is turned off, the device will not be able to start – the user, along with the power outage, will lose hot water. The most reliable and convenient way is to be powered by batteries, the main thing is to have spare ones on hand.
Power modulation
Neva models with power modulation function save fuel and get a stable temperature output stream. The flame in the burner is regulated depending on the pressure of the water flow. This is a convenient and profitable feature that any user will love.
Type of heat exchangers
Any water heater has a heat exchanger – a part in which water is heated. They are usually made of copper – plain or refined, or steel. The latter are cheaper, they are resistant to corrosion, quite weighty and reliable. Copper counterparts are characterized by higher heat transfer – modifications with copper heat exchangers have higher efficiency.
The disadvantage of copper options is the uneven heating due to the presence of impurities, this can lead to damage to the container.
How to choose power
The capacity of the water heater depends on the power – the more powerful it is, the better it heats the water. If the power is low, the device will not be able to provide hot water to several points.
Columns are usually divided into:
- low-power – 17–20 kW;
- medium – 20–26 kW;
- powerful – 26–28 kW.
Low-power versions are taken for one point of water intake. If you need hot water in the kitchen and bathroom, you need medium power. So, for 2–3 points, Neva Lux 5011 or 5014 is suitable. To provide 3–4 points, you will need a powerful version. The more powerful the modification, the higher its cost.
The combustion chamber
The Gazapparat plant produces water heaters with both types of fireboxes – closed and open. In the first case, forced traction is used, in the second, natural traction.
A coaxial chimney is connected to models with a closed chamber. Its design allows you to simultaneously remove gases and supply combustion air. Open chambers involve the absorption of air from the room. Such modifications need a traditional chimney.
Versions with open fireboxes are installed in rooms that meet safety requirements:
- area from 8 m²;
- effective ventilation system made of heat-resistant material.
Safety system
The basis of the safety of gas equipment is a well-thought-out system of protection against emergencies. The manufacturer has equipped all modifications of Neva gas water heaters with sensors that control the operation of the device and ensure its safe operation. The following elements provide protection:
- Sensors: flame; water pressure; temperature control.
- Safety valve.
- Thermal relays.
Sensors that control temperature differences are installed on improved versions of the Neva Lux 4513 and 4514 boilers. These elements allow you to change the water temperature if water intake points are connected or disconnected.
Models overview
Consider the best models.
Supposedly 4511
Atmospheric type water heater. Power – 21 kW. Suitable for 2 points of water intake, no more. This is the most compact version in the entire series, it is the one that is best suited for tight spaces. The estimated price is 9 rubles. Management is mechanical. Ignition – from batteries.
Specifications:
Productivity, l/min | 11 |
Rated thermal performance, kW | 21 |
Natural gas consumption, m³/h | 1,66 |
Consumption of liquefied gas, kg/hour | 2,2 |
Water temperature (min/max), °C | 30/90 |
Weight, kg | 11 |
Minimum water pressure, bar | 0,15 |
Dimensions (HxWxD), mm | 565h290h221 |
Supposedly 6014
Judging by functionality, technical characteristics and safety, this is perhaps the best speaker in the entire model line. The case is made in high-tech style. Color – steel grey. Possessing a lot of advantages, it has a moderate price – about 14 rubles. Saturated with automation, which makes use simple, convenient and safe. It is easy to mount, as it has modest dimensions and low weight.
Technical specifications:
Productivity, l/min | 14 |
Rated thermal performance, kW | 28 |
Natural gas consumption, m³/h | 3,0 |
Consumption of liquefied gas, kg/hour | 1,1 |
Water temperature (min/max), °C | 25/70 |
Weight, kg | 13 |
Minimum water pressure, bar | 0,15 |
Dimensions (HxWxD), mm | 650h350h240 |
The main advantages:
- multistage protection system;
- digital display;
- battery level indicator;
- water cooling system at the combustion chamber.
Supposedly 5514
This is one of the most powerful modifications of the brand. It features a technological design, simple, intuitive operation. Easy to mount, fits any interior. It has a modest size and light weight. Operation at extremely low water pressure is possible – start-up occurs at 0,1 bar. Smooth temperature control – eliminates the possibility of burns.
Performance:
Productivity, l/min | 14 |
Rated thermal performance, kW | 28 |
Natural gas consumption, m³/h | 3,0 |
Consumption of liquefied gas, kg/hour | 1,1 |
Water temperature (min/max), °C | 30/90 |
Weight, kg | 12,5 |
Minimum water pressure, bar | 0,15 |
Dimensions (HxWxD), mm | 650h350h240 |
Advantages:
- a viewing window that allows you to control the operation of the burner;
- automatic combustion control – when the fire goes out, the system turns off;
- 2-stage flame modulation;
- ease of repair – easy to obtain spare parts.
Neva 4510 and 4510 M
Inexpensive modification with a flat body and an aluminum heat exchanger. This is the cheapest model from Gazapparat. Russian development and Chinese components. Battery ignition. 4510 M – an improved version, this is also an automatic dispenser, but it is more compact and has a copper heat exchanger.
Model 4510 Specifications:
Productivity, l/min | 10 |
Rated thermal performance, kW | 17 |
Natural gas consumption, m³/h | 1,95 |
Consumption of liquefied gas, kg/hour | 0,64 |
Water temperature (min/max), °C | 30/77 |
Weight, kg | 10,4 |
Minimum water pressure, bar | 0,3 |
Dimensions (HxWxD), mm | 356x624x186 |
Advantages:
- low cost – about 6 rubles;
- available and inexpensive spare parts;
- small sizes;
- 2 years warranty;
- work at minimum water pressure;
- service centers in all regions.
Disadvantages:
- no power modulation;
- unreliable heat exchanger (at 4510);
- low quality components.
Transit VPG-10E
Flow type device, with an open firebox. Works on any type of gas. Estimated price – 7 300 rubles. Parameters and design features:
Productivity, l/min | 10 |
Rated thermal performance, kW | 21 |
Water temperature (min/max), °C | 30/60 |
Weight, kg | 9,5 |
Dimensions (HxWxD), mm | 340h615h175 |
Service
An important advantage of the Neva and Neva Lux devices is a replaceable heat exchanger. Having bought it for 3500-4000 rubles, you can extend the operation of the old device, and not buy a new one. The manufacturer equips new versions with copper heat exchangers that are resistant to corrosion, but scale and salt are still a problem.
In order for the device to work smoothly, it needs timely maintenance and troubleshooting:
- One common problem is a broken solenoid valve. When the user opens the tap, a click is heard – the automatic ignition is activated, but the gas does not go to the burner. The valve, fixed with screws, is easy to replace – it has a standard diameter.
- The outlet temperature should be limited. Strongly hot water contributes to the formation of scale and salts on the walls of the heating element.
- It is necessary to clean the burners and the heat exchanger in a timely manner, to clean the entire device from contamination.
Before operating the equipment, the user needs to read the instructions, which describe the design of the device and provide a connection diagram.
Reviews
Neva 6014: Roman Sh., Vladimir
We have been using model 6014 for over a year. General impressions are more “yes” than “no”. On the positive side, I would like to note low noise, ease of setup and a stable outlet temperature. The disadvantages are insignificant – fast battery consumption, too smooth temperature control and increased vibration in the “Winter” mode. But given the cost, these disadvantages are not critical.
Neva 6011: Kirill O., Tver
We bought the Neva 6011 four months ago. Comfortable, simple, looks stylish. But there is one minus – it concerns the speed of heating water. The problem arose with excess gas pressure. I solved it myself by shutting off the gas valve by a quarter. Then I bought a gearbox, which finally solved the problem. I do not regret buying, especially at such a modest price.
Russian speakers Neva do not need advertising – the Russian consumer has long appreciated their merits. They have rightly earned popularity among the people and positive reviews from experts. Inexpensive, efficient – they are adapted to domestic conditions and regularly heat water for many years.
The ease of repair also attracts consumers – the manufacturer supplies inexpensive spare parts and has created a wide network of service centers in all regions.