Geyser on liquefied gas features

If a gas pipeline has not yet been connected to your country house, you can create domestic comfort in your home using a gas water heater from bottled gas. Compared to electric water heaters, this is a more economical option. Rough calculations show that one 50-liter cylinder is enough to provide food for 2-3 people for one month. But not every dispenser can run on liquefied gas, so when purchasing, you should first of all be interested in this parameter. You should also find out what kind of gas your local company supplies in containers and make your choice according to that product.

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Important! If you purchased a water heater that is not designed to operate with bottled gas, it can be converted, but the work must be carried out by a qualified technician with approvals. The date of reconfiguration is indicated on the equipment, and no inspection services will be able to make claims against you. It should be understood that the stable operation of the equipment is guaranteed only half by its quality, the remaining 50% depends on competent professional installation.
Photo: Rating of gas heaters

Today, many manufacturers offer universal water heaters that operate from both natural and liquefied gas. Products from European brands Ariston, Bosch and the Russian manufacturer Neva are in high demand. A gas instantaneous water heater from a cylinder can be equipped with any type of combustion chamber: both open and closed. Let's look at the most popular models.

Important! The gas cylinder must not be placed or stored near heating devices or in direct sunlight. This rule also applies to the hose through which fuel is supplied to the dispenser. You should also prevent access to the equipment by unauthorized persons and children. And under no circumstances use the cylinder if it is damaged.

If the buyer chooses the design of a geyser for bottled gas, depending on the interior, then the technical characteristics must correspond to the needs for hot water in the house, water supply pressure and gas pressure.

Manufacturers

Manufacturer	Characteristic
Vektor JSD 20-W (Russia)	Power - 20 kW. Water consumption when heating 25 °C - 10 l/min. Weight - 10.5 kg. Dimensions (HWD) - 580330208 mm. Automatic independent electric ignition, powered by batteries. To start, just open the mixer tap. Operates at water pressure from 0.2 to 7.5 atm. Multi-level security system. The automatic protection and safety system turns off the water heater when: - there is no sufficient draft in the chimney; — the flame on the burner goes out; - reducing water flow; - overheating of the heat exchanger. The presence of a digital display that displays the temperature of hot water at the outlet of the water heater. The presence of a “Winter-Summer” mode, which allows you to save gas up to 40% in the warm season. Instability of operation when water pressure changes, auto-ignition failures and heat exchanger leaks due to thin walls. The problem is likely to occur after a year of operation. Low price - about 4,500-4,800 rubles.
Neva 4510-M (Russia)	Affordable price and excellent functionality. Work on natural and liquefied gas. Power - 17.9 kW. Productivity - 10 l/min. Possibility of connecting several points of consumption. Bottom gas supply. Quiet operation. The presence of a thermometer and electric ignition on batteries. Works at a water pressure of 0.1 atm. There are problems with the quality of materials used and reliability.
Bosch WR 10-2P (Germany)	Power - 17.4 kW. Productivity - 10 l/min. Heating water up to 60 °C. Convenient mechanical rotary switches for temperature adjustment. Two versions of the dispenser are available - P23 for natural gas and P31 for liquefied gas from a cylinder. Work at pressure from 0.1 to 12 atm. The combustion chamber is open type, requiring the installation of an air vent. Easy to operate and install, small dimensions, quiet operation. Installation is vertical, on the wall. Bottom gas supply. Presence of piezo ignition. Thermometer for monitoring water temperature. The model is sensitive to water quality. Relatively high price.
Electrolux GWH 265 ERN Nano Plus (Sweden)	Power - 20 kW. Capacity is 10 l/min, which allows you to shower comfortably. Average cost of the model. Work at water pressure from 0.15 to 10 atm. Convenient controls. Installation - vertical, on the wall. Communications connections are from below. Availability of electric ignition. The presence of a “gas control” function that prevents any leakage of flammable substances. Fine temperature regulation and high sensitivity to pressure.

As a result, the operation of an instantaneous water heater using liquefied gas will allow you to autonomously supply your house or cottage with hot water.

Criterias of choice

To make the right choice of model, you need to study the device parameters and take into account important installation nuances:

First, they decide on the place where the water heater will be installed. Based on the location in the room, it is easier to determine the dimensions of the device, as well as calculate the cost of purchasing additional materials for installation, such as pipes for exhaust and water.
Burner power is the first parameter that requires attention when choosing a column. For domestic use, models with an average rating are suitable, capable of providing hot water to 1–2 points. If analysis is carried out simultaneously from 3-4 points, you will need a device with a higher power burner.
The performance of a gas water heater is determined by the consumption of hot water. The optimal rate is in the range of 10–11 l/min.
The automatic water heater has a threshold for maximum and minimum water pressure in the water supply. If these values do not match, the column simply will not turn on.
Most water heaters are designed to be connected to a centralized mains, but there are water heaters that run on bottled liquefied gas.
They choose a speaker not because of the popularity of the manufacturer, but by the availability of spare parts and their cost. There is no such water heater that will constantly work without repair.

Connecting equipment to the cylinder

Before you start connecting the equipment yourself, make sure that the model is really suitable.

Other brands of acceptable equipment: , (almost all the latest models). The instructions for the Bosch speakers indicate that a 50-liter cylinder will be enough for 10 hours of stable operation at a power of 25 kW. A conversion kit for Bosch speakers can be purchased from an authorized service center.

If it is necessary to carry out work on reconfiguring equipment, replacing collector nozzles and assessing the tightness of joints, they must be done strictly according to the rules. The nozzles must be smaller in diameter: as in gas stoves, the pressure produced by liquefied gas reducers is 2–3 times higher than when natural gas is supplied through pipes. At the same time, the calorific value of liquid fuel is 1.5 times greater than that of natural gas.

The equipment must be marked with a refurbishment date - day, month and year. The type of gas suitable for use is also indicated.

The connection diagram of the cylinder to the main valve requires it to have a reducer with pressure stabilization of 300 mm of water. Art. and a minimum steam phase productivity of one cubic meter per hour.

Parameters of the hose connecting gas equipment to the fuel tank:

250 cm - minimum length;
1.2 cm is the least permissible inner diameter of the tube.

Please note that on online forums there is information of the following nature: if you reconfigure the column correctly and carry out the work without flaws, problems with water pressure may arise and the column will not start. Then you will need to additionally install a pressure pump

When installing a shut-off valve, remember that it must be easy to access so that in the event of an emergency the user can quickly turn it off.

After completing the installation work, check the tightness of the connections and conduct a test run of the equipment.

Instructions. Conversion of the Neva 4511 gas water heater to liquefied gas

The gas column has jets with a diameter of 1.28 mm. This set of nozzles is installed in the burner ramp for operation on natural gas with a pressure of 130 mm. water Art. (130 mbar). The ramp at the Neva 4511 gas water heater is ten-sectional, i.e. The ramp includes 10 nozzles.

The set of liquefied gas nozzles we offer contains 10 nozzles with a diameter of 0.75 mm.

The offered kit is only suitable for this model,

because, for example, the Neva 4510 gas water heater has a ramp that is simply of a different design. Moreover, this model of Neva 4511 has been studied quite well by us. It is easy to install, repair and maintain. When converted to liquefied gas, the dispenser consumes about a kilogram of gas per hour of operation. Now you will see for yourself that altering the ramp will not take much time. To move the column we need a Phillips screwdriver and an adjustable wrench (38 mm). The column itself does not need to be dismantled at all.

Begin

First you need to separate the ramp. An ignition electrode (candle) and a flame presence (ionization) sensor are attached to the ramp. Separate them by unscrewing two screws.

In the photo they are indicated by number No. 1. After separating the sensor and spark plug from the ramp, you need to remove four self-tapping screws (No. 2), which secure the burner ramp.

After separating them, take an adjustable wrench and unscrew the ramp nut from the gas column assembly.

The ramp is in our hands. After the ramp is in our hands, it is best to turn out the jets with a 7 mm socket so as not to damage the splines when tightening the new nozzles with pliers or an open-end wrench (the wrench is the same as the 7 mm socket). As you can see, replacing the nozzles requires almost nothing from your brain.

Now we will understand the principle of operation of an instantaneous gas water heater using liquefied gas (also known as bottled gas). Let's see what advantages such boilers have and how to install them (install). Finally, let's look at the rating of manufacturers who produce the best models on the market.

You can find out the price and buy heating equipment and related products from us. Write, call and come to one of the stores in your city. Delivery throughout the Russian Federation and CIS countries.

Owners of private houses and summer cottages are constantly selecting the best option for supplying users with hot water. One such option is an instantaneous water heater operating on.

Instantaneous water heater Vektor JSD

Propane use

The substance has the formula C3H8 and belongs to the low-toxic category with a specific odor.
Air becomes explosive if it contains a concentration of butane vapor of 1.8 - 9.1%, propane - 2.3 - 9.5%, the pressure is 0.1 MPa at a temperature of +15 to + 20 ° C. Propane ignites spontaneously at +470°C, butane – +405°C. Chemical and physical properties of propane:

molecular weight – 44.097 kg/kmol, molecular volume – 21.997 m3/kmol;
liquefied gas consumption per 1 kW of heat is 0.16 dm3 (liter);
gas density at 0°C – 2.0037 kg/m3, at +20° – 1.87 kg/m3;
density in the liquid phase – 528 kg/m3;
the volume of air required for combustion of 1 cubic meter is 23.8 m3.

Despite the higher cost, liquefied gas fuel is more convenient to use. It turns into a liquid state and can be stored that way. To save natural methane, it is required to compress it under a pressure of 200-250 atm, and transportation in a liquefied form is possible only at cryogenic temperatures (below 120 K).

Centralized gas pipeline

The gas pipeline supplies natural gas.
The construction of a centralized pipeline requires certain costs, so methane is used by residents of densely populated regions and areas with large volumes of consumption. The suburban population does not always have access to a gas pipeline and fuel is delivered to them in cylinders. The main line is built from steel pipes with a diameter of up to 1.42 m and is designed for pressure up to 10 MPa. The pipelines carry about 55–60 billion cubic meters of gas per year. Highways are laid underground or on the surface. The comprehensive service includes compressor points, cleaning and drying stations, and gas distribution points.

Gas tanks

Gas tanks
For continuous supply of LPG, underground and above-ground gas tanks are used, which are installed in a multi-storey sector or on the territory of a private housing estate. From the tank, fuel is supplied to apartments and houses and used to heat the room.

Gas tanks have a monitoring system and record the filling of the sump. The sensor determines the gas reserve and transmits a signal to the service when the fuel level in the tank decreases to 30%. The operator sends a tanker to fill the tank.

Liquid that has not turned into a gaseous state constantly accumulates at the bottom of the gas tank; the tank requires cleaning. The storage facilities are convenient to use because they provide a continuous supply of fuel.

Cylinders

Bottled gas is used for home heating if residents do not regularly visit their country house in winter.
Propane or its mixture with butane is supplied in containers. The downside is the increase in fuel costs when moving away from the product supplier. A standard propane tank holds 22 kg of gas and weighs 19 kg. Composite containers are used, they are lighter, but more expensive. Gas cylinder parameters:

unit length 28 – 95 cm;
diameter – 20 – 30 cm;
wall thickness – 3 – 4 mm;
weight – 4 – 22 kg.

Using statistics, you can calculate how much gas is needed to heat 80 square meters of home. In mild cold weather, heating such an area requires 2 forty-liter cylinders when using antifreeze in the heating system. This is 25–30% higher than gas costs with centralized supplies. It is allowed to combine cylinders of 15 pieces in a closed metal cabinet.

Are there turbocharged models?

To heat water, you can use a turbocharged water heater. Such devices do not require a traditional vertical chimney; combustion products are discharged through a coaxial pipe led through the wall. It also supplies air to the closed firebox to maintain the combustion process. Turbocharged speakers have disadvantages: you need to make a hole in the pipe, ask the consent of neighbors above to install the equipment, the device is noisy due to the operation of the turbine. Plus, when working on propane-butane, you will also need to place a cylinder in the room. An important advantage of turbocharged versions is versatility; they can be placed in any room, since a chimney is not needed

The second important advantage is that they do not “eat up” the home air.

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.

Gas consumption

The average user is interested in how much fuel his dispenser consumes. If the device operates from a centralized gas supply, you need to know how many cubic meters are consumed per unit of time; If it's propane, I wonder how long one tank will last? Costs depend on various characteristics and, above all, on thermal power. An example of calculating propane-butane consumption. Initial data:

specific heat of combustion - 14 kW/h;
Efficiency - about 92%;
burning 1 kg of propane-butane mixture gives 12.9 kW/h.

Let us have a heater that produces 5 liters of hot water per minute, and fuel consumption is 1.5 kg per hour. A 50 liter cylinder contains 42 liters or 23 kg of propane-butane. By making simple mathematical calculations, you can find out that one cylinder is enough to heat 4,600 liters of water. Translated into hours, this is a little over 15 hours of continuous heating. If you use hot water for 2 hours a day, you will need 4 cylinders per month.

How to choose

Instantaneous water heaters operating on gas - natural or liquefied - have almost the same design. Differences in nuances - materials, control method, degree of automation. Important parameters when choosing a gas water heater:

Ignition method. Older versions were lit by hand using matches and lighters. Today, manufacturers offer three ignition options - piezo, electric and from a hydrogenerator.
Heat exchanger material. The service life of the device depends on the quality of this part. If you buy a cheap Chinese device, the heat exchanger in it may turn out to be tin. Such water heaters do not last longer than three years.
The inner diameter of the tubes in the heat exchanger. Wide tubes do not need to be descaled as often as narrow tubes.
Water block. Metal is preferable. A cheaper alternative is plastic.
Performance. When choosing this parameter, you need to take into account the volume of water flowing from the tap per unit time. The easiest way is to note the time and look at the result on the water meter. If the flow is less than 10 l/min, why buy a model with a capacity of 15 or more l/min?

Temperature control - manual or automatic. The first ones are cheaper. The adjustment is made by valves. In versions with power modulation, the temperature is maintained at a given level automatically.
Removal of combustion products. It is safer to output through a coaxial chimney. Along with the power of the device, the diameter of the pipe increases. The second option is output through a traditional chimney. The third one has no chimney. The latter cannot be installed in a confined space and without ventilation. These are usually mini-speakers - devices with low power.
Oxygen supply. In cheap versions, air is supplied through vents. Minus - combustion products penetrate back into the room. Expensive devices are equipped with a pipe leading from the bottom of the device. The housing is additionally closed with lids - from below and from above, so that combustion products do not penetrate into the room.
Power. Mini-heaters of 17–19 kW are suitable for systems with low pressure and one water intake point. Powerful devices should be taken for a pressure of more than 10 l/min and with several water intake points. Versions for 21–31 kW are not installed in apartments, these are options for country houses.

Floor-standing

With an internal tank volume of 200 liters or more, the device is floor-mounted, since the load on the wall may be excessive. Gas floor-mounted storage water heaters are located in a special technical room, operate fully automatically and do not require frequent maintenance. Built-in safety systems protect equipment from overheating, loss of traction and other unpleasant situations.

It is worth noting. That gas equipment always carries danger, so when choosing, you should pay attention to recognized manufacturers. Products from brands such as BAXI, Bradford White and, of course, the founder of gas equipment for hot water supply, the German company VAILLANT, will be the best and most reliable choice.

A short overview video about Bradford White water heaters:

If there is no centralized gas supply, you have to heat water and cook food using gas water heaters and stoves that can run on a gas cylinder.

Switching to alternative fuel

Most dispensers can be converted to an alternative type of gas - from natural to liquefied and vice versa. The changeover must be carried out by a service department that has the appropriate certificate. You must use parts kits from the manufacturer. When reconfiguring, the manifold jets are replaced: you need to install nozzles with a diameter suitable for the type of fuel used and its pressure. When performing work, turn off the device and turn off the gas valve. After completion of work, check the tightness of the connections. On the device itself and in its instructions it is written what it is used for, the date of completion of the work, and the organization of the performer of the work.

Temperature

High ambient temperature (ambient temperature) affects gas pressure, which consequently affects flow rate. The higher the OS temperature, the more the liquefied gas expands, the pressure in the cylinder increases, which is why cylinders cannot be filled to capacity. And it is for this reason that there is a multi-valve that cuts off the gas supply to the cylinder if the cylinder is filled to the required level. Also, in order to prevent an explosion, there is an emergency valve, which, when critical pressure is reached, makes an emergency release.

Vector

"" - budget speakers assembled from Chinese components. Many consider them to be a thing of the past, but our consumers value them for their simplicity and low cost - the model range consists of devices whose price does not exceed 4,000 rubles.

Despite its cheapness, this equipment works properly, providing homes and apartments with hot water. All models have a stylish design; they can even become a decorative element. A distinctive feature is compactness. Chinese spare parts, if necessary, are easy to find in any market.

Controls - knobs for adjusting the gas and water passing through the heat exchanger. Some versions are equipped with a mode switch - winter and summer. The disadvantage is accelerated wear of spare parts. For example, the walls of the heat exchanger are made of copper, but this layer is so thin that they fade over time. There is no flame control module.

Vector JSD 20

Like all representatives of the Vector model range, the speaker is cheap - it costs about 4,000 rubles. Compact, fits in the cramped kitchen. There is a digital display and auto ignition. Color - white, gold and silver. Closed chamber. Electric ignition.

Vektor JSD 11-N

Compact version for small spaces. There is an automatic fire extinguishing sensor and overheating protection. Heats up 5 l/min. It weighs only 4.5 kg, but is designed for only one water intake point. Options:

Vektor Lux Eco 20-3

This new product from Vector has improved protection that reduces the risk of overheating. The closed firebox is cooled with water. Selecting and setting the temperature mode. There is a digital display. Case with mirror panel. The model was developed taking into account changes in pressure in water pipes. The average cost is 8,000 rubles.

Owners of private houses and summer cottages are constantly selecting the best option for supplying users with hot water. One such option is an instantaneous water heater operating on.

Instantaneous water heater Vektor JSD

Principle of operation

The main function of geysers is to heat water in the shortest possible time. It looks like a housing in which the combustion chamber is located.

In a column powered by liquefied gas, water is heated as it flows through a heat exchanger, which in turn is heated by the burner. In addition, the device contains such elements as: a water cooling system, a control unit, temperature, pressure and draft sensors. Thanks to the electronic security system, the operation of the column is monitored throughout its entire operation.

Water heater Electrolux GWH 265 ERN NanoPlus

The best storage gas water heaters

Such devices have a capacious body with an internal tank. The latter is equipped with a heating element heated by a flame from a gas burner.

The device operates without a network connection. Some models also operate on liquefied gas. Thermal insulation of the housing ensures that the temperature of the heated liquid is maintained.

Ariston SGA 200 R - with a huge tank

This is the best gas storage water heater for a large family or for arranging a shower in the gym, in a locker room at work, because the tank capacity is 195 liters. At the bottom of the structure there is a small combustion chamber with a submersible heating element and controls.

Due to its large weight and size, the boiler is installed on the floor, and the water inlet and outlet connections, as well as the smoke removal channel, are located on top.

Pros:

The heating time of the huge container is only 75 minutes;
you can connect up to 5 taps;
simple floor installation with top connection;
heats water to a temperature of 75 degrees;
operates from a minimum system pressure of 0.2 bar;
the inside surface of the tank is covered with enamel;
the tank is insulated with polyurethane foam;
in the upper part of the case, a dial thermometer always reports the temperature;
ignition of the burner by a piezoelectric element;
control of gas flow without flame;
the anode is made of an anti-corrosion alloy and coated with magnesium;
gas valve with three safety stages;
steel body;
work indicator;
there is a drain valve;
capable of running on liquefied gas.

Minuses:

cost from 43,000 rubles;
large sizes 50x35x170 cm are more difficult to place;
1 year warranty;
the adjustment is located at the bottom, so you have to bend down every time to change the settings;
There is no overheating protection.

Geysers powered by gas cylinders

If there is no centralized gas supply, you have to heat water and cook food using gas water heaters and stoves that can run on a gas cylinder.

The gas cylinder used to heat water contains gases such as propane and butane. They are by-products of oil, gasoline and gas refining. The cylinders may contain only technical butane or a mixture of butane and propane, which is available in summer and winter.

Compression of these gases converts them into a liquid of a smaller volume (and therefore such a gas is called liquefied), and as the pressure decreases, this liquid begins to turn into a vapor state. Since an increase in temperature causes a strong expansion of liquefied gases, the cylinder is usually filled to 85% of its volume, so there is always a layer of vapor gas above the liquid gases.

For a dacha, choosing a heater that uses gas from a cylinder as an energy source is often the only way to get hot water in a dacha. In situations where there is no main gas pipeline connected to the dacha, and there are also problems with the electrical network, a gas water heater of this type will be a real salvation.

When operating a water heater connected to a gas cylinder, on average one gas cylinder with a capacity of 50 liters is enough to provide the minimum daily hot water for two to three people for a month.

First of all, you need to make sure that your gas water heater is configured to use the gas that is present in the cylinder. If required, work is carried out to re-adjust the column by replacing the collector nozzles and assessing the tightness of the connections. In this case, the equipment must be marked with the date of reconfiguration and the type of gas that can be used in the device.

The cylinder that will be connected to the gas water heater must be equipped with a reducer with a stabilization pressure of 300 mm water column, as well as a minimum vapor phase capacity of 1 m³ per hour

They also pay attention to the selection of the hose - its length should be up to two and a half meters, and the internal diameter should be from 12 millimeters

It is important to purchase a hose that can withstand working with a gas cylinder dispenser.

When installing the hose, do not bend or twist it. If the hose has to be installed with a bend, adapters are used for this and the radius of the bend is monitored (it should not be less than 90 mm along its outer line). In addition, the hose must not bend within 50 mm of the ends of the nozzles.

The installation of a gas shut-off valve must be carried out in front of the column so that this valve can be easily reached. After completion of installation work, the hose and other connections should be checked to ensure that leaks are detected in a timely manner. Only after this can the column be used to heat water.

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Installation

Before installing a gas instantaneous water heater using liquefied gas, you need to understand the cylinder. It is important that it meets the following characteristics:

There must be a gearbox on it.
Pressure equal to 300 mm. water Art.
The minimum capacity of the first phase of the cylinder should be 1 m³ per hour.

It is also necessary to purchase a flexible hose with an internal diameter of at least 12 mm and a length of no more than 2.5 m. This hose must withstand the gas, taking into account the required temperature and required pressure.

A gas shut-off valve must be installed in front of the column itself. After you complete the installation, be sure to check all connections and the hose so that if there are any problems, they can be corrected immediately.

If you have experience working with gas equipment, then you can install the gas water heater yourself. If not, you should contact a specialist.