What is a parapet boiler: selection and installation

There are a number of options to think about when it comes to efficiently heating our homes. One option that is becoming more and more popular is the parapet boiler system. What is a parapet boiler, though, and how is it different from other types of heating systems? This post will go over everything there is to know about parapet boilers, including how to choose and install them.

A wall-hung boiler, sometimes referred to as a parapet boiler, is a kind of heating system in which the boiler unit is mounted on the wall as opposed to the floor. This design is a desirable choice for both new construction and retrofitting existing homes because it saves space and allows for placement flexibility. Residential spaces are frequently heated by perimeter boilers, which effectively provide warmth and comfort.

There are a few things to consider when choosing a parapet boiler for your house. The size of your house and its heating needs are important factors to take into account. Finding the right boiler size and capacity to efficiently heat your space while maintaining energy efficiency can be aided by a professional assessment.

An additional crucial factor to take into account is the boiler’s efficiency rating. Boilers with higher efficiency levels contribute to lower energy consumption and, over time, lower utility bills. A boiler’s ability to convert fuel into heat is measured by its Annual Fuel Utilization Efficiency (AFUE) rating; look for models with high AFUE ratings.

After choosing the ideal parapet boiler for your house, installation must be done correctly to guarantee maximum efficiency and security. Hiring a licensed heating specialist is strongly advised in order to ensure proper boiler installation. To make sure everything is set up in compliance with local building codes and manufacturer specifications, they will evaluate the location, ventilation needs, and piping requirements.

What is a parapet boiler

The boiler body is composed of 3 mm thick steel and is protected from mechanical and corrosive effects by a unique fireproof anti-corrosion spray coating.

The boiler’s principal components are:

  • closed type firebox;
  • gas burner with igniter;
  • coaxial chimney;
  • two heating circuits with independent boilers made of copper and steel.

Control unit: thermometers, thermocouples, pressure and draft sensors; they guard against boiler overheating. The boiler starts to overheat the water as soon as the draught in the furnace drops to 0 mm.в.st. When the temperature rises above 65C, a signal from the plate reaches the cut-off valve, which then shuts off the gas and stops combustion.

The heat from the gas flame causes the thermocouple to produce a tiny voltage that operates the gas valve. When there is no combustion and the voltage falls to 0 V, the valve immediately shuts off the boiler’s gas supply.

Operating principle of the parapet gas appliance

  1. The burner is ignited by a wick or a pilot light.
  2. The gas burns and gives off heat, which heats the boiler.
  3. Mains water with the help of circulation pump or with natural circulation, heated, leaves the boiler and goes to the heating devices placed in residential, public or industrial premises.
  4. The process of burning gas will run until the water in the heating circuit is not heated to a preset level, after which it will be automatically shut off by a gas valve installed in front of the boiler.
  5. The wick continues to function and will reignite the burner if the temperature of the mains water drops.

Arguments for and against parapet boilers

  1. Possibility of operation in premises.
  2. Reasonable prices.
  3. Small geometrical dimensions of the unit.
  4. Speed and simplicity of installation works.
  5. Possibility of use without installation of additional radiators.
  6. Large range of capacity.

Energy dependence is one drawback.

In the world of home heating and insulation, understanding what a parapet boiler is and how to select and install one can make a big difference in keeping your house warm efficiently. A parapet boiler is a type of heating system that"s installed on the outside wall of a building, usually at roof level. It"s a compact and space-saving option, perfect for homes with limited indoor space. When choosing a parapet boiler, factors like size, fuel type, and efficiency ratings are essential to consider. Installation requires careful planning to ensure proper venting and connection to the home"s heating system. With the right choice and installation, a parapet boiler can efficiently heat your home, providing comfort and cost savings throughout the colder months.

Types and prices

These boilers have the benefit of a large selection of models with various mounting options, including wall-mounted and floor-standing models. Consider the actual connection conditions when selecting a boiler.

Construction equipment from China, Russia, the CIS, and European plants is quite prevalent on the market. It is evident that boilers from the EU are of a higher caliber than those from China, but they also cost a lot more.

Typical parapet boilers:

  1. TERMOMAX-C -energy-independent compact boilers for individual heating of single-storey and multi-storey houses equipped with a system of flue gas emission through a coaxial duct horizontally embedded in the external wall.
    Constructed as one and two-circuit version with marking E and EB and heat output from 7 to 16 kW. For heating systems with a high hydraulic resistance, a circulation pump is provided. Control, protection and start-up via EuroSit 630 gas valve. The burner is started by piezo ignition. TermoMax C 16EB has an efficiency of 90% and is able to heat rooms of 120 m2, the cost of the unit – 20100 rubles.
  2. Another Russian model of parapet boiler – Lemax Patriot 20 with a closed furnace. Steel heat exchanger treated with inhibiting composition and covered with enamel coating to resist corrosion processes. By type of installation – wall-mounted. Lemax boilers heat load range from 6 to 20 kW. Gas burner equipment from the Italian concern "SIT" with injection flare burner "POLIDORO". Special holes on the front panel to create convection effect and increase heat transfer in the room. Features include: removable cladding elements, igniter, coaxial smoke removal system, energy-independent installation option. Cost of the unit – 25820 rubles.
  3. Two-circuit boiler "Slim 2.300 Fi", produced by the brand Baxi with a heat load from 14.9 to 29.7 kW, capable of heating objects with a size of 140 -160 m2. The boiler is made of quality materials, with a price from 120.0 to 140.0 th. rub.
  4. EcoCompact VSC D INT 306/4-5 190L, the boiler of the German brand Vaillant – a highly efficient unit, can heat 160-180 m2, the price of 240.0 thousand.rub.
  5. Parapet boiler Danko, capacity from 7 to 18 kW, is equipped with a cast iron boiler with a wall thickness of 3 mm and a closed furnace chamber. Universal design allows for two-way connection of utilities, the control unit is located on the working panel of the boiler. The units are equipped with gas automatics "Honeywell", piezoelectric ignition and micro flame burner, heating area up to 160 m2, the price – 21 thousand.rub.
  6. Eurotherm KT TSY (P2) for individual heat supply in systems with natural and forced circulation of the heating circuit, with water heating temperature up to 90 C, heat output 10 kW, gas consumption 1.13 m3/hour, efficiency 92%, weight 59 kg, warranty period 24 months., heating area 100 m2, price – 24kys. rub. Steel boilers are equipped with a copper recovery system with a bypass channel. Copper coil of special design is placed in the water cavity, to produce DHW. Design features: heat recovery system with receiving tank, casing, control and protection unit, air duct, gas duct, wind protection cover. The design allows the unit to be installed at floor level near the wall. The DHW connection pipelines are made on one side. Air intake channel passes through the outer wall thickness from 200 – 500 mm. Not allowed to be mounted on the walls in a wooden house, without fire protection measures.
What is a parapet boiler? Selection and installation
A parapet boiler is a compact heating system that is installed on the outer wall of a building, often on the roof or balcony. When selecting a parapet boiler, consider factors like the size of your home, your heating needs, and energy efficiency ratings.
Installation of a parapet boiler involves securely mounting it to the exterior wall, connecting it to the heating system, and ensuring proper ventilation. Professional installation is recommended to ensure safety and efficiency.

Boilers with a parapet design provide a cost-effective way to heat your house while making the most of available space. These boilers are especially useful for homes with limited interior space because they save valuable space by being mounted on the outside wall of your home. For homeowners wishing to upgrade their heating systems, they are a popular option because of their small size and simple installation process.

It’s important to take a number of things into account when choosing a parapet boiler to make sure it will suit your needs. To ensure ideal warmth without wasting energy, the boiler’s heating capacity should be appropriate for the size of your house. To reduce your heating expenses and the boiler’s environmental effect over time, you should also evaluate the energy efficiency ratings of the boiler. Get advice from a licensed heating technician to choose the right model for your house.

For a parapet boiler to operate effectively and last a long time, proper installation is essential. Make sure the boiler is mounted firmly on the external wall by qualified experts in accordance with the manufacturer’s instructions. In order to stop heat loss and keep the boiler operating at its best, especially in the winter, proper insulation and ventilation around the boiler are necessary. Your parapet boiler will last longer with routine maintenance checks and prompt repairs, providing dependable heating for many years to come.

To sum up, parapet boilers provide a useful heating option for homeowners looking for dependable warmth and effective space utilization. You can have comfortable interior temperatures while consuming the least amount of energy and money by choosing the appropriate boiler size and guaranteeing expert installation and maintenance. To choose the ideal parapet boiler for your house and take advantage of year-round, cost-effective heating, speak with heating specialists.

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Parapet gas boiler ATON.Leak or condensate!!!???


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Sergey Ivanov

I like to help people create comfort and comfort in their homes. I share my experience and knowledge in articles so that you can make the right choice of a heating and insulation system for your home.

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