Installation of the parapet gas boiler with your own hands
Boilers of parapet type are installed only in non-residential and non-domestic premises, t. е. They should not be installed in living rooms and offices, but they can be placed in kitchens, halls, corridors, etc. auxiliary rooms. Gas boilers of this type do not require permanent supervision.
Parapet gas boilers are installed on the outer wall of the building only so no flammable structural elements are located near the place of their installation. If the wall includes combustible elements, the distance from the pipe to such elements must be at least 20 cm and the elements themselves must be protected with a fireproof material on the pipe and gas boiler sides. On the facade itself there must not be combustible elements closer than 30 cm to the pipe. If such elements are present, they are either removed or protected with a fireproof material.
The pipe must not extend into the loggia, balcony, shed or even further into the staircase or archway. It is worth taking care that the pipe does not interfere with passers-by, if the boiler is installed at a low height relative to the ground, and does not throw the products of combustion into the window of the neighbors.
Diagram of the parapet boiler arrangement.
For boilers with power up to 7 kW allowed to install the pipe 25 cm from the window in any direction and 50 cm to the side if the boiler power is higher. If the boiler is located on the first floor, the height of the pipe must not be less than 0.5 m above the ground if there is no human passage in the area of the pipe outlet, but if there is human passage and the boiler output exceeds 7kW, the height of the pipe location must be at least 2.2 m. Also, the pipe may not extend under the air intake closer than 2.5 m or near it than 0.6 m for boilers with power of 7 kW and not closer than 1.5 m. if the power of the boiler is greater than 7 kW. Under balconies and other elements, projecting more than 0.4 m, it is allowed to locate the pipe of parapet type boiler not closer than 2 m (if the power of gas boiler over 7 kW. 3 m), cornices and other elements, projecting less than 0.4 m. not closer than 0.3 m (if the power of gas boiler over 7 kW. 1.5 m).
Since the coaxial tube requires periodic control and maintenance, then choose the place of installation of the gas boiler should be such that it is possible to organize access to the pipe.
No flammable elements of interior (curtains, draperies) shall be placed close to the gas boiler room furniture and electrical appliances should not be placed close to it or within 30 cm.
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Control devices of the gas boiler itself, regulating and shut-off valves of the pipelines connected to the boiler must be accessible for inspection and control. For this purpose, there must be an at least 1 m wide aisle in front of the front panel.
What is a parapet gas boiler
A parapet boiler is a device used for heating residential and public buildings. Such equipment is popular due to its environmental friendliness. For performance, there is no need to mount a chimney on the roof, through which the soot and carbon black will be removed. Instead, install a coaxial device. this is a special pipe-in-pipe system, where through one hole the waste goes, and through the other. oxygen is supplied.
Not so long ago, units were used as a replacement for wall-mounted models. Requirements for installation are not so strict, and functioning of the whole system is stable. Asking yourself what is a parapet gas boiler, the answer is that it is a symbiosis between a gas plant and a convector.
This is a highly efficient equipment, where the layout of the device does not affect the power indicator. Because of this, such equipment is suitable for heating different objects. However, the parapet boiler is best suited for a small room. It can be:
Despite the high efficiency of up to 90%, these are fairly compact units that do not imply high power.
Preparing for installation
Before you install a gas boiler in a private home, you need to prepare for work. The procedure consists of these steps:
- Signing the contract with a company-supplier of fuel.
- Development of a project and coordination of technical conditions of installation and operation of the heating system with the gas service. For this purpose, the body is provided with a technical passport of the equipment, sanitary certificate, instructions for use of the device, the conclusion of the examination, which states that the device complies with all technical norms.
- Preparing the place for installing the device.
You must also gather all the necessary materials and tools.
Installation of floor and parapet boilers
Ease of installation and delivery is provided by special feet or transportation wheels. Thus, they do not cause difficulties. over, such models are sold in assembled form, which facilitates the task of specialists. Parapet unit. the best alternative to floor and wall models. It has an energy-independent heat generator, which allows providing independent heating for two-room apartments.
It should be remembered that among the various boilers there are exceptions: models that do not always fit the parameters. Also the requirements and specifications do not always provide for the possibility of heating a wooden room.
This cost involves installation, delivery, purchase of parts, pouring water into the system, checking all parameters and safety precautions and start-up.
History of the parapet gas boiler
Floor standing turbine boiler has a closed combustion chamber, so it is safe, does not require a separate room The product was created in the early nineties of the last century, when mass private construction began and people refused central heating. The universal furnaces used at that time could run on any fuel, but they had an open-type burner. Since domestic enterprises were closing down en masse, and foreign products were not available, it was decided to develop and put into production a boiler of its own production, which meets all the requirements for capacity and safety.
Works were carried out in Ukraine and “Luch” Russia. In 1996, the first double-circuit models with a compact size, output of 10 kW, an efficiency of 0.92 and a closed combustion chamber were available for sale. These boilers were the prototypes of the units that are still manufactured today.
Despite the availability and low cost of fuel, such boilers have the following differences and advantages
- They are energy-independent units.
- Combustion chamber design. closed type. Thanks to this, the “waste” is completely removed outside the room in which the parapet unit is located. This eliminated the need for a separate room for the installation of the appliance. In addition, the oxygen in the room is not burned. a big plus for small areas with poor ventilation. This structure of the chamber improves the combustion of fuel and thereby increases the efficiency of the entire heating system.
- Since the combustion chamber is closed, the need for installation of volumetric gas ducts disappears. For those who don’t have a way to build these structures, this is great.
- By the parameters and structure, the parapet boilers are similar to the mounted boilers. But despite the demand, the latter are rather “fastidious” in their use. For such a hinged unit to work for a long time, it requires the best quality gas, stable pressure in the circulation mode, soft water and other nuances. Parapet boilers are not as “capricious” and are easier to operate, although they are multifunctional. Although, of course, all the requirements prescribed in the documents of the unit will have to meet.
- In the very body of the boiler are convection holes, created precisely to provide space heating and without installing auxiliary radiators.
- According to the functions, such boilers can be divided into single-circuit and double-circuit. But this will be discussed below.
- These boilers can run on natural gas as well as from a gas cylinder with propane butane.
The heating device has a small size, which makes it possible to install it in the kitchen, bathroom or basement level. The presence of convection openings in the housing allows the unit to be used as a stove, thus eliminating the need to install piping and batteries in the room.
- solid body, covered with heat-resistant enamel;
- closed combustion chamber;
- gas burner;
- Heat exchangers (copper or brass coils);
- chimney with windbreak.
Automatic control and monitoring devices are part of the product. This includes a thermocouple, air draft sensor and thermometer.
The first start of the boiler
Absolutely all modern imported and domestic boilers are equipped with automatic start system, fuel supply and emergency stop system.
Emergency shutdown system: this system is triggered in case of a sharp drop in fuel pressure, which is fixed on the electronic manometers. Rapid drop in pressure indicates a gas leakage which in itself is dangerous and requires an emergency shutdown of the “receiver”, ie the consumer boiler.
Automated start: this function allows you to set the start of the boiler on a timer, as well as set the frequency of supply. This operation is much easier and saves fuel when the boiler works “by segments” of 15-20 minutes and turns off for an hour or two, while maintaining a constant temperature regime.
Automatic fuel supply allows keeping the combustion regime constant at all times.
For the first start-up of the boiler, it is necessary to observe all these parameters, using the setting data, which are given for each boiler separately in the manual. The first start-up should be made with a minimum efficiency and increase it gradually at regular intervals, this will “warm up” the boiler and check the main operating parameters.
Why Gas Boilers Are Still The Most Popular Choice
Parapet boilers are a great combination of quality, relatively low cost and unsurpassed functionality. Parapet boilers. the choice of thousands and thousands of homeowners.