Gas water heater "Neva": affordable and high-quality water heater for home

Tags:Bathroom and toilet, Kitchen, Plumbing

Among the water heaters used in domestic conditions, a special place is occupied by flow-through models, which is due to the peculiarities of using gas equipment, on the one hand, and the low cost of the fuel used, which is natural gas, on the other. The "Neva" gas water heater belongs to this category of equipment. In this review, we will analyze how the column is arranged and its principle of operation, the main technical characteristics and possible malfunctions. In addition, we will give an overview of popular models and reviews of real consumers, which will help you finally decide on the choice of one or another modification of water heating equipment.

In a modern apartment, the gas water heater looks like an anachronism, but quite recently, when even in large cities only part of the housing stock was provided with centralized hot water supply, it was present in every second kitchen

The content of the article

1 Device, purpose and when it can be used
2 The principle of operation and types of geysers brand "Neva"
3 Main technical characteristics of gas columns "Neva"
4 Lineup of gas water heaters "Neva"
5 How to choose a gas water heater
6 The main problems and repair of gas water heaters "Neva"
- 6.1 Where to find spare parts for gas water heaters "Neva"
7 Reviews of real consumers about Neva gas water heaters
8 At what price can you buy a gas water heater "Neva"
9 Video: review of NEVA geysers

Device, purpose and when it can be used

The main purpose of the "Neva" series gas water heaters is to heat tap water for its further use for technical purposes: washing dishes and cleaning homes, taking water procedures and washing clothes. The figure below shows all the main elementss devices of the gas water heater "Neva 4511", namely:

1 - device body with elements for wall mounting;
2 – diffuser, which is a collection of combustion products, equipped with a branch pipe for connection to the chimney;
3 - heat exchanger;
4 - gas burner;
5 - water unit;
6 - membrane;
7 - gas solenoid valve;
8 - controller;
9 - microswitch;
10 - water supply tube;
11 - ignition electrode;
12 - flame sensor;
13 - electrode for ignition of the burner;
14 and 15 - adjusting elements (valve - flow regulator and combustion intensity control knob).

The main structural elements of the gas column

Installation and operation of gas water heaters is regulated by SNiP 42-01-2002 "Gas distribution systems" and SP 42-101-2003 "General provisions for the design and construction of gas distribution systems from metal and polyethylene pipes."

The principle of operation and types of geysers brand "Neva"

How the gas water heater works can be seen on the example of the "Neva 4511" model, the design of which is discussed above. Running flow water heater happens as follows:

when opening the water tap (which is installed on the hot water pipeline) connected to the water taps (No. 5 in the figure) of the gas water heater, the water pressure affects the membrane (No. 6 in the figure) located in a special reducer (frog);
the diaphragm is connected to the stem, which, while moving, opens the gas valve (no. 7) and closes the contacts of the microswitch (no. 9);
gas is supplied to the burner (no. 4), and an electric current is supplied to the ignition electrode (no. 11) from the batteries (batteries), as a result of which gas breakdown and ignition occurs;
the flame sensor (no. 12) transmits a signal to the controller (no. 8), after which the electric circuit is opened and the column goes into normal operation;
when the water tap is closed, the membrane returns to its original position, thereby closing the gas supply valve, - the column is finished.

The device of the water and gas units of the gas column

Gas instantaneous water heaters of the "Neva" brand are produced in different types and may differ in the following characteristics:

by power and method of ignition;
by the type of combustion chamber and chimney design;
on the availability of control and safety systems;
by type and number of additional functions.

Main technical characteristics of gas columns "Neva"

The main determining condition for the use of a particular technical means is its technical characteristics, which fully applies to gas flowing water heaters.

Model "Neva 4510"

The main technical characteristics declared by manufacturers in the manufacture of such products are:

Performance. This indicator informs about how much water the unit can heat up per unit of time, which is expressed in liters per minute or kilowatts (kW). Knowing the number of tapping points connected to the water heater, it is possible to determine the capacity required for it in order to ensure normal operation at maximum load.

Maximum and minimum working pressure. The mode of using the geyser and, in general, the possibility of its operation depends on the pressure of the water in the supply water pipe. This is due to the fact that at low pressure the column will not start up, because the pressure of water will not be able to act on the diaphragm with the required force, and as a result, the gas valve will not open. With an excessively high pressure, the gas column may fail, which will lead to an accident on the gas equipment, which is unacceptable.

Model "Neva Lux 5514"

Power. This indicator can be changed, modulated during the use of an instantaneous water heater. This is done using a regulator located on the front panel of the housing, by means of which the amount of gas supplied to the burner, and as a consequence the temperature of the heated water, changes. The power of the units is measured in kilowatts (kW).

Ignition type.

Different models may have three options for the ignition device:

manual - when the supplied gas is ignited at the ignition electrode by means of a match brought by the user;
piezo ignition - carried out by a piezoelectric element at the moment the user presses a special button located on the front panel of the device case;
electric (electronic) - occurs automatically when the gas valve is opened, can be performed from autonomous power sources (batteries) or from the electrical network.

Model "Neva 4511"

Heat exchanger type.

The performance of the model depends on the type of heat exchanger, because this structural element can be made of various materials with different thermal conductivity:

steel - distinctive features are: durability and low cost;
highly purified copper - the most optimal option for such products, characterized by good thermal conductivity and strength;
ordinary copper - is the least durable and reliable material prone to destruction.

Type of removal of combustion products. According to this indicator, gas water heaters are classified as with a chimney device serving as a channel for removing combustion products and without it.

Availability of security systems. Different models are equipped with different security systems, which ultimately affects their cost, so when choosing a gas water heater, you need to pay special attention to this indicator.

Model "Neva 4513"

Modern models can be equipped with the following safety devices:

ionization detector and combustion sensor - provide control of the presence of a flame on a gas burner;
emergency pressure relief valve - relieves excess water pressure, if any, occurs in the supply water supply;
water flow rate control detector - automatically turns on the burner when the water tap is opened (in models equipped with electric ignition);
draft detector - switches off the unit if there is insufficient draft in chimney (in models with a chimney device);
low water pressure detector;
the hot water temperature sensor informs with a digital display about the hot water temperature and turns off the column if the set parameters are exceeded, set using another control element on the outer panel.

Model "Neva 3208"

Related article:

Storage water heater: which company is better? A separate publication provides an overview of popular brands and models with prices and device characteristics.

Lineup of gas water heaters "Neva"

Currently, in the line of flowing gas water heaters of the Neva brand, manufactured by the company BaltGaz, several models are presented, the most popular of which are summarized in the following table, where their main technical characteristics are indicated.

Index	"Neva 4510"	"Neva Lux 5514"	"Neva 4511"	"Neva 4513"	"Neva 3208"	"Neva Transit"
Thermal power, kW	17	28	21	25	23,2	21
Productivity, kW	15	24	18	21	19	18,5
Water consumption, l / min	8,5	14	11	13	6,45	10
Water pressure, atm.	0,3-6	0,3-10	0,3-6	0,1-10	0,15-6	0,2-10
Ignition type	electronic	electronic	piezo	electronic	electronic	electronic
Overall dimensions, mm	650350239	650350239	565290221	665390260	730390280	615340175
Weight, kg	10,4	12,5	9,5	13,5	19,5	9,5

The data on water consumption are given at its temperature of + 25˚С, and the overall dimensions in accordance with - height × width × depth.

Model "Neva Transit"

How to choose a gas water heater

When choosing a model of a gas flow heater, the main criteria that influence this choice will be the following indicators:

Power is the main selection criterion, because the number of draw-off points that can be turned on simultaneously when using the unit depends on it.
The presence and number of security systems.
The level of automation of the unit.
The material from which the heat exchanger is made.
Exhaust gas outlet design.
Dimensions and weight.
Model cost.

Modern models of gas water heaters fit quite organically into the interior of the kitchen space

Related article:

Flat storage water heater 50 liters. Advantages and disadvantages, device, connection, review of brands and models, expert recommendations - in our publication.

The main problems and repair of gas water heaters "Neva"

As with any technical device, gas water heaters periodically break down, which causes certain difficulties for the user of such equipment.As a rule, to repair gas equipment, it is necessary to call a specialist from the gas service or a company that maintains a specific type of equipment, but sometimes with minor breakdowns they can be eliminated even with your own hands.

Even an unqualified specialist can perform simple repairs; for this, the ability to work with a locksmith's tool is enough

The following table lists some of the problems that may arise when using gas columns of the "Neva" brand and tells what to do in such situations.

Malfunction	Cause of malfunction	Remedy
The column does not light up	Combustion sensor triggered due to flame extinction.	Replacing the thermocouple.
The column does not light up	The batteries are discharged or there is no voltage in the electrical network.	Replace batteries, check mains connection.
The column does not work, but the fuse is on	Thrust detector triggering.	Check the draft in the chimney.
	Insufficient pressure in the cold water line.	Install an additional pressure boosting pump.
	Leaks in the water unit.	Stretch the places of threaded connections, replace the failed gaskets.

Gearbox design (frogs) - main elements

Where to find spare parts for gas water heaters "Neva"

Spare parts for gas equipment, including instantaneous water heaters, are sold in specialized stores and trade organizations working with similar equipment. In light of the fact that in case of serious breakdowns, repairs are carried out in special workshops, there is no need for an ordinary consumer to purchase such spare parts, but in the case of minor malfunctions that can be eliminated on their own, spare parts will be required. The following spare parts are most in demand for minor repairs:

reducer (frog) and membrane for it;
gaskets for threaded connections and technical flax (tape or thread FUM);
batteries (batteries).

All of these spare parts can be purchased at regular hardware stores and retail chains, as well as organizations specializing in building materials and hand tools.

A variety of models, differing in technical characteristics, allows you to choose an instantaneous water heater of the "Neva" brand for various operating conditions

Related article:

Boiler for water heating. Application, device and principle of operation, selection criteria, an overview of manufacturers and models, average prices, subtleties of installation on their own - read in our publication.

Reviews of real consumers about Neva gas water heaters

Due to their reliability and good technical characteristics, at a fairly low cost, Neva gas water heaters are in stable demand in trade organizations, which is explained by their popularity among users, as evidenced by their feedback on specific models. Here are some of these comments left on the Internet by real consumers about the models discussed in this article.

Feedback on the Neva 4510 model:
Read more on otzovik: https://otzovik.com/review_3051937.html

Another tip about the Neva 4510 model:
Read more on otzovik: https://otzovik.com/review_3037378.html

Another tip about the Neva 4510 model:
Read more on otzovik:https://otzovik.com/review_6402368.html

Feedback on the model "Neva Lux 5514":
Read more on otzovik: http://otzovik.com/review_475784.html

Another review about the Neva Lux 5514 model:
Read more on otzovik: http://otzovik.com/review_504193.html

Another review about the Neva Lux 5514 model:
Read more on otzovik: https://otzovik.com/review_5793167.html

Feedback on the Neva 4511 model:
Read more on otzovik: http://otzovik.com/review_112367.html

Another tip about the Neva 4511 model:
Read more on otzovik: http://otzovik.com/review_392509.html

Another tip about the Neva 4511 model:
Read more on otzovik: https://otzovik.com/review_5235170.html

Feedback on the Neva 4513 model:
Read more on otzovik: https://otzovik.com/review_4494536.html

Feedback on the model "Neva 3208":
Read more on otzovik: http://otzovik.com/review_921748.html

Another review about the Neva 3208 model:
Read more on otzovik: http://otzovik.com/review_824824.html

Feedback on the Neva Transit model:
Read more on otzovik: http://otzovik.com/review_318910.html

Another tip about the Neva Transit model:
Read more on otzovik: http://otzovik.com/review_2766158.html

At what price can you buy a gas water heater "Neva"

Instantaneous water heaters are sold in specialized organizations engaged in the sale and repair of gas equipment, as well as in stores and retail chains of household appliances, however, here their choice is somewhat limited. In order to buy a Neva gas water heater, you can contact the dealer of the manufacturer's company, or go to his website on the Internet, and already there you can solve the issue of purchasing a specific model.

In specialized organizations, as a rule, a wide range of gas equipment is presented, allowing you to choose a model in accordance with the selection criteria and personal preferences of the user.

The following table shows the cost for the models discussed in this article, when they are sold through trade organizations and Internet resources, as of the II quarter of 2018.

Models	Picture	Average cost (as of May 2018), rubles
"Neva 4510"		6100
"Neva Lux 5514"		11000
"Neva 4511"		8400
"Neva 4513"		10500
"Neva Transit"		5500

The gas water heater can be installed not only in the kitchen, the bathroom is also ideal for this

In different trade organizations, the cost may vary slightly, but in general, all the models considered are in the specified price range. A wide network of dealers of the manufacturer's company allows not only to purchase the model you like, but also to conclude an agreement for post-warranty service, and, if necessary, perform warranty repairs of a failed unit.