How to choose a long burning boiler up to 7 days + step -by -step installation instructions

Comfort and energy efficiency can differ significantly depending on the boiler you choose for your house. You can have warmth for longer periods of time without having to constantly refuel with a long-burning boiler. We’ll lead you through the process of choosing a long-burning boiler in this guide, which can provide up to seven days of warm water for your home.

It’s important to comprehend what a long-burning boiler is and how it differs from traditional boilers before beginning the selection process. Multi-fuel boilers, commonly referred to as long-burning boilers, are made to burn a variety of fuels effectively over a long period of time. Because of its adaptability, homeowners can select from a variety of fuels, such as biomass, coal, or wood pellets, based on their preferences and availability.

A number of considerations must be made when choosing a long-burning boiler to guarantee best performance and fit for your house. A number of factors are important, including fuel type, size, efficiency, and compatibility with your heating system. You can select a boiler that satisfies your heating requirements while optimizing energy efficiency by closely examining these factors.

To ensure safe and effective operation, installing a long-burning boiler requires meticulous planning and attention to detail. We’ll walk you through the installation procedure step-by-step in the sections that follow. We’ll go over every crucial step to ensure a successful installation, from setting up the installation site to connecting the boiler to your heating system.

The principle of operation of a long burning boiler

Solid fuel boilers were first introduced not too long ago, but regardless of the brand and model, they all had a major flaw. It burned so I had to keep adding fuel. It wasn’t economical and wasn’t effective. This state of affairs persisted precisely until 2000, at which point Stropuva discovered a solution to end the issue. We owe the engineer Edmuntas Stropaitis credit for creating the long-burning boiler.

It is currently the most useful and effective heating system available for a private home or cottage, with performance levels up to 70% and occasionally 100%. However, in contrast to traditional pyrolysis boilers, which also vary in their high efficiency, these systems can run on a single fuel batch for seven days!

What are the primary technical characteristics that make this device so efficient and cost-effective?

Long-burning boiler apparatus

A long-burning solid fuel boiler operates on a similar principle to pyrolysis units. Gasification of solid fuel produces the majority of the heat, not coal or firewood combustion. Wood gas is released from the combustion process through a special telescopic pipe, which takes place in a closed space.

Subsequently, the gas is directed towards the window of the heating pads, where it is absorbed and mixed with secondary air through the upholstered fan. As a result, the process will continue until the firewood or coals are fully burned. In this instance, the temperature of combustion can occasionally rise to 1200 degrees.

Long-term burning boiler installed internally

The reason this principle works so well is because solid fuel is used very gradually when needed, which greatly boosts the effectiveness of the heating device in question. However, this design’s benefit goes beyond just great performance.

Vital. Long-burning solid fuel (pyrolysis) boilers are far more efficient than those with traditional designs. 95% of it is.

Generally speaking, the key to long-playing combustion is that only the top layer of the coal or firewood burns at a time rather than the entire stack. Because the air is supplied from above rather than below, fuel burns more slowly in the upper layer.

The extended combustion principle

The air supply is turned on when this layer burns, and only enough is used to combat the upper layer. This offers a combustion duration of that kind along with process control.

It should be mentioned that this particular version of the heating device is only appropriate to use as a heating system. You should consider other options if you need to consider a water heating system for your home.

Such a device is a great substitute for electric and gas devices if it is chosen especially for heating a large house.

Choosing the correct long-burning boiler is essential if you want to keep your house warm and comfortable while saving money on energy bills. We break down all the important factors to take into account, from fuel type to efficiency, in our guide on choosing a boiler that can burn for up to seven days. We’ll take you step-by-step through the installation process, so even a novice can easily configure their own heating system. This guide will help you make educated decisions and keep your home comfortably heated for days on end, regardless of whether you’re looking to install a new boiler or upgrade your existing one.

The peculiarity of the design of the TT boiler prolonged combustion

Usually, the consumer is already aware that the entire device is contained within a sizable volume of the boot chamber due to its design and size. Here, however, slow winging—rather than a large volume of resources—determines the duration of combustion.

The TT boiler’s design

Special techniques are used to ensure the duration of combustion. These days, these kinds of devices use one of two primary long-burning systems. This is the Baltic Strip and Bulerian systems used in Canada.

The second system has many more technical parameters and is more expensive than other systems in our nation. However, the Boillean system is essential to the manufacture of the long-burning boilers that are available on the market today.

It’s a compact furnace made up of two cameras. Solid fuel is burned in the first (lower) chamber, producing gas as a byproduct. Moving above the first camera, he enters the second one. This is where the hot gas and air mix and continue to burn. Pipes that run up the circumference of the boiler cylinder from bottom to top provide excellent air circulation and high heat transfer.

Long-burning TT boiler

Of course, the need to load a lot of fuel determines how long the boiler will burn, sometimes for several days. For this reason, the loading chamber door is situated in the boiler’s upper section rather than at its base. The fuel is filled with the entire lower part.

Long-lasting burning is provided by a large loading chamber.

The boiler, which is attached to the chimney, is housed in the upper section. Additionally, you can see ash in the lower section, which is required for ash collection and methodical access for cleaning.

If the ash-free ash in traditional furnaces serves as Pluna by supplying a certain amount of oxygen, then the ash-containing ash solely serves to collect combustion residues, which is why its door is sealed. From where does the air originate? An air chamber located at the top of the boiler serves as both a recuperator and a heat source for the walls due to the smoke gases inside. In other words, heated air from the air chamber enters.

A damper located at the top of the camera controls how much air is supplied to the fuel. An air distributor, which is connected to an air chamber by a long telescopic pipe, is found in the boiler and allows oxygen to enter the chamber.

The distributor falls along with the top layer of burning raw materials when the fuel fights, supplying oxygen continuously. Pulling the cable with the ring up is all that is needed to get the distributor back in place. By the way, the position of the cable indicates how much fuel is left in the chamber.

Manufacturers are able to attain performance (efficiency) of up to 85% and adjustable power from 50% to 100% due to this design.

Video. The principle of operation TT boiler long burning.

Boilers with prolonged combustion have a high environmental friendliness, which can be explained by this design principle. There is a very small amount of carbon dioxide emitted into the atmosphere.

Most often, raw materials protrude from coal, peat briquettes, firewood, and coke. But any waste from the woodworking industry can be used in addition to regular firewood. These waste materials are ground into a finely divided powder and then formed into pellet-like granules. Depending on the model, fuel can be mixed.

The boiler TT’s overall efficiency is greatly increased by the large loading chamber volume and the inadequate oxygen flow into the combustion chamber. Considering these factors, the decay process can take up to 7 days to complete. Boilers that use pyrolysis are also excellent, but the quality and moisture content of the starting fuel must meet strict requirements. Yes, wet wood will cause the performance to drop here as well, but not to the same extent as in a pyrolysis boiler.

Numerous models operate using bulk wood materials (chips, sawdust), peat briquettes, or woody sections and pieces.

Different types of fuel for the boiler

Because only small amounts of oxygen are allowed to enter the chamber, the processing happens very slowly. However, the boiler is fully loaded with sufficient resources to produce generator gas with high thermal conductivity indicators. It rushes into the main combustion chamber through a ceramic nozzle, where active combustion is carried out. In this instance, more air is used to force and sustain the process, creating a fan.

The flame itself is created by combining gas and air, and fans are used to intensify the flame.

Owing to their volumetric dimensions and intricate design, these units are primarily utilized for heating expansive rooms in suburban mansions. Buying a boiler of this type is just not financially justified for a small cottage or one-story house. These kinds of units perform too well.

Large-room TT boiler

The effective placement of the heat exchanger, a water shirt, contributes to the high performance of prolonged burning boilers. The unit’s design contributes to the water circuit’s uniform warming around the edge. The gases that are released have a temperature between 130 and 150 degrees. The coolant warms up as effectively as possible thanks to heat released in the boiler.

When selecting a long-burning boiler for the home, let’s review its key features and weigh the benefits and drawbacks.


  • Long burning boilers that can ensure performance up to 7 days, mainly work on peat briquettes or wood chips. There are universal devices that allow you to work with different fuel, but its length should not exceed 40 cm. Otherwise, you will have to engage in independent harvesting firewood.
  • The higher the moisture content of the starting raw materials, the less the performance of the heating device will be. Therefore, for combustion, manufacturers recommend using fuel with a moisture content of not more than 20%.
  • 1 boiler load on average provides up to 7 days of continuous burning.

The typical firewood moisture content

  • High performance. Perhaps this is one of the main and significant advantages of such bulky units. The average efficiency of the efficiency is at least 90%.
  • Environmental friendliness. Current gas entering the chimney is used as the main source of combustion gas formation.
  • Relative availability and inexpensive price of solid fuel.
  • Automatic work process. Some models are equipped with a remote control that allows you to set the desired temperature regime.
  • Savings of time and resources.
  • Autonomy of work. Can be used as the main heating device.
  • High fire safety. Prolonged combustion boilers are equipped with an alarm sensor, which works in any emergency situation.
  • High reliability of the structure. With proper operation of the equipment, the boiler will last more than a dozen years.

However, these boilers have certain drawbacks despite their effectiveness, economy, and productivity.

  • Big dimensions.
  • High price.
  • Need for regular cleaning.

Security measures

Simple guidelines for using a long-burning solid fuel boiler should be followed in order for it to provide long service and prevent burns or accidents inside the home.

    Do not allow the system overheating. Given the high inertia of the boiler, it cools extremely slowly. Therefore, it is important to monitor the control temperature mark. This is especially true for pipes made of metalloplasty or plastic. If the output temperature is 110-115 degrees, this will lead to sad consequences. Pipes can simply melt. To do this, when installing the heating system, use cooling heat exchangers and switching valves.

Ventilation system in the room

Safety precautions

Will the boiler really work all 7 days for 1 fuel load?

When selecting a solid fuel boiler, owners of private residences and cottages are primarily concerned with factors like cost, output, and length of combustion from a single fuel load.

Long-burning TT boiler

In order to ascertain which of the devices will be the most successful, let’s include a comparative characteristic and stick to these fundamental standards.

  • Type of fuel. The effectiveness of the device largely depends on this. Not all raw materials are intended for long burning. Firewood, for example, is given maximum performance with rapid combustion. But peat briquettes can give heat for a long time, maintaining the optimum temperature. An excellent solution would be a universal model that works on several options at once.
  • Boiler material. It also depends on raw materials. When using coal, it is better to give preference to the choice of a steel boiler, but for firewood, cast -iron structures are more suitable.

Steel-based TT boiler

  • The power of the boiler. This parameter depends on the volume of the loading chamber. The larger it is, the longer the boiler can burn with one load.
  • The weight of the structure determines the material. The cast iron apparatus is almost 20% heavier.
  • Product price. This is a very conditional parameter. But if the boiler is acquired for the purpose of the main source of heating, then you should not save, because the productivity of the device and a comfortable microclimate in the house depend on it.

In any case, even if the seller claims that the boiler can run for seven days on a single fuel load, you should still check the technical passport because, despite his extolling the virtues of the apparatus, it is the passport that will specify the boiler’s typical burning time.

The chosen model is not the only factor that affects combustion time. This parameter is influenced by the kind and caliber of fuel, the room’s size, the ceiling height, and the efficiency of the home’s heating system.

Combustion duration based on fuel type

Correct installation of the boiler: step -by -step instructions

After purchasing a solid fuel boiler and anticipating that it would burn raw materials for as long as seven days as stated, many customers become aware that the device does not operate as efficiently as claimed. Furthermore, the mistakes made during connection—rather than the boiler’s poor quality or marriage—are the real issue here.

Installing TT on your own

Naturally, many people entrust the installation of the TT boiler for long burning to the masters, given the intricacy of the design and the responsibility of this event. However, if you follow our thorough, step-by-step instructions, you can install the boiler on your own, without assistance from others. Although the device weighs at least 50 kg, you cannot operate without assistance.

While doing the preliminary work, you should consider the boiler’s installation location right away. Of course, having a separate boiler room would be ideal.

A private home’s boiler room

Such a heating system ought to be produced in a separate non-residential room because solid fuel still produces a certain amount of dirt. But, you can easily zone the main room and the "boiler room" apart if the boiler’s power is modest, not more than thirty to thirty-five kW.

System of ventilation in the boiler room

A ventilation system must be installed in the boiler room in order to prevent respiratory issues for those who produce boilers and their ignition. The street should provide clean air.

Assemble the following equipment:

  1. Locksmith (divorce, lacture, uniform keys).
  2. Building level.
  3. Circular Saw.
  4. Screwdriver and set of nozzles.
  5. Marker.
  6. Pistol for sealant.

Lockslide tool set

Buying supplies to connect the solid fuel boiler to the heating system will also be required in addition to the boiler itself.

  • Steel coupling (3 pieces).
  • Ball crane with a slope (2 pcs) with a diameter of 50 mm.
  • Metal pipe for connecting a boiler.
  • Sealant (refractory).
  • Plumbing winding.

Stage 1. Preparation and protection of the premises.

It is important to address the topic of fire safety responsibly.

    We determine the place where the boiler will be located. If the house is replaced by an outdated model with a more modern and productive, then the place along with the chimney has already been prepared. If the heating system is constructed from scratch, then you should immediately consider the gas outlet system and the location of the boiler in the room. Place for installing the boiler should provide convenient operation and direct access. The room where a solid fuel boiler is installed should be non -residential.

Location of the boiler

Boiler installation on a metal sheet

Boiler installation on a black concrete screed is permitted when installing a low-power unit.

Make sure to measure the foundation’s inclination. It ought to be exactly level. If the floor is uneven and it is necessary, a brick foundation should be laid.

  1. Draw a marker or chalk on the floor, where you will install the boiler and carefully double -check all the distances. Observe the distance from the walls (regulated by SNIP). From the furnace door to the wall, the distance should be at least 125 cm. The distance between the side parts and the back of the boiler and the wall should be at least 700 mm.

Defend the wall behind the boiler.

Video. How to correctly install a long burning boiler in the house.

Stage 2. The cauldron of the boiler.

This is one of the hardest phases. It will directly affect the system’s security.

The boiler’s cauldron has multiple circuits, one for forced coolant circulation and another for natural circulation. Furthermore, a heating system that is both open and closed might exist.

Water flows freely through all pipes under pressure when there is a natural circulation system in place. The forced scheme calls for installing the pump that generates this pressure.

Binding TT boiler to allow for longer burning

The number of floors, the location of the boiler, the rooms, and the overall area all influence the choice of connection scheme. Therefore, for one-story houses, it is recommended to use a scheme with natural circulation. However, it won’t work for rooms that are spread out across multiple floors, so it’s best to buy a second pump to force the coolant to circuit.

However, a closed (forced) scheme is the most straightforward and intelligible.

Closed-loop heating system

Two pipes are used in its production. One is linked to the heating network’s supply contour, while the other has its reversed outline.

Crucial! The kit does not include the expansion tank and circulation pump, regardless of the boiler model that you select. All of this needs to be bought and installed separately, depending on the connection system that is selected.

Follow these guidelines to ensure you tie the boiler correctly:

    The pressure should not rise above the norm. You can follow this indicator by manometer.


Since the manometer will regulate the maximum pressure value, installing it is a requirement before strapping the boiler.

  1. We tie out the output of the boiler pipes. After the flax is tightly wound around the output pipe, go well on it with a plumbing sealant.
  2. We take the corner and gently wrap it from above.

The boiler’s cutting diagram

Sealing materials

Stage 3. Pipe connection.

Every solid-fuel boiler needs to have a chimney connection installed. All you have to do is connect a new design to the house’s existing, functional gas withdrawal system.

Choices for chimney installation

Choose between installing the heating system through the wall or the roof if you are installing the chimney and the house’s heating system from the ground up. Ideally, double-circuit pipes should be used when installing a sandwich-style chimney.

  1. The channel between the boiler and the chimney should be at least 1 meter. The performance of the device and the safety of the inhabitants of the house depend on this. Ideally, the chimney should have a minimum number of bends, because each additional turn creates an obstacle to the natural traction of gases, and reduces the productivity of the boiler.

The boiler TT’s connection to the chimney

Regarding the pipe’s inclination, a 45-degree angle is ideal for the horizontal portion that connects the boiler to the chimney’s vertical design. If this is not possible due to technical limitations, then a horizontal area with an angle of 15 to 30 degrees may be placed. It cannot be done even in any case, as it will interfere with normal traction.

Attachment to the chimney

Take note! It is essential to apply sealant to the joints connecting every component of the chimney to every other component. This will lessen the chance of smoke leaks.

  1. We connect the first chimney pipe to the boiler pipe. The type of connection depends on the selected boiler model. A prerequisite is compliance with the diameter of the chimney and the furnace pipe. The diameter of the chimney pipe should be no less than the stupid boiler pipe. If these parameters are not observed, then the capacity of the gas will be reduced at maximum power.

Selecting a long-burning boiler for your house is an important choice that will have a big effect on both your comfort level and energy costs. Making the proper decision will allow you to have steady warmth without having to constantly refuel for up to seven days. We’ve covered important aspects to take into account in this post when choosing a boiler of that kind, making sure that your investment effectively meets your heating requirements.

First and foremost, it’s critical to comprehend the heating needs of your house. Numerous factors are important, including your property’s size, insulation levels, and climate. You can choose the right heating capacity and efficiency rating for your long-burning boiler by evaluating these factors. Boilers that are either too big or too small can operate inefficiently and cost more to heat.

Take into account the kind of fuel that the boiler runs on as well. Certain models are made to work with particular fuels, like wood pellets; others are more versatile and let you use wood, coal, or biomass as your fuel of choice. The performance of the boiler is impacted by the fuel type choice, which also has an impact on ongoing maintenance and operating expenses.

Consider features and technological innovations carefully when comparing various models of long-burning boilers. In order to increase efficiency and convenience, modern boilers frequently have sophisticated combustion controls, automated ignition systems, and programmable thermostats. Choosing a boiler with these characteristics can reduce the need for manual intervention while maximizing heating efficiency.

Ensuring the optimal functioning of your long-burning boiler requires proper installation. It’s advised to hire a trained professional for installation, even though some homeowners may decide to handle it themselves. A qualified installer can safely connect the boiler to your heating system, precisely measure your home’s layout, and guarantee that it complies with building codes.

Through meticulous evaluation of these variables and adherence to the comprehensive installation guidelines furnished, you can with assurance choose and install a long-burning boiler that efficiently satisfies your heating requirements. Your boiler can contribute to a cosy and effective home environment for many years to come with regular servicing and proper maintenance, which will also save energy.

Video on the topic

Long burning boiler "Promot" up to 7 days of combustion.

How to choose a long burning boiler

Long burning boiler – solid fuel. A good example

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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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