How to choose and install a smoke car for a solid fuel boiler or fireplace

A solid fuel boiler or fireplace can be an excellent option for keeping your house warm and comfortable during the winter. They not only heat a space effectively, but they also give it a lovely atmosphere. However, installing a smoke car correctly is necessary to guarantee the safe and efficient operation of your solid fuel heating system. We’ll walk you through the process of selecting and installing the ideal smoke car for your solid fuel boiler or fireplace in this guide.

Let’s define a smoke car first things first. In essence, a smoke car—also referred to as a chimney or flue—is the opening that allows smoke and other combustion byproducts to exit your house. Safely redirecting these potentially harmful emissions outside is essential to maintaining good indoor air quality. Selecting the appropriate smoke car is essential for solid fuel heating systems in order to ensure both efficiency and safety.

There are several important factors to take into account when choosing a smoke car for your fireplace or solid fuel boiler. The first thing you must do is choose the kind of fuel you want to use. Different fuels, such as wood, coal, pellets, or another kind of solid fuel, produce different kinds and quantities of combustion byproducts. With the aid of this information, you can select a smoke car that fits properly and is made to withstand the unique requirements of your heating system.

Furthermore, where your house is located and how it is laid out will affect which smoke car you choose. The best location and setup for your smoke car depend on a number of factors, including the height of your roof, how close your buildings are to one another, and local building codes. To make sure your smoke car complies with all safety requirements and operates properly, it is imperative that you speak with a qualified installer or chimney sweep.

Installation comes next after you’ve chosen the ideal smoke car for your solid fuel heating system. Ensuring the safety and efficiency of your heating system depends on proper installation. The components of the smoke car must be carefully assembled and fastened, connected to the boiler or fireplace, and any gaps or joints must be sealed to stop leaks. It is best to leave this work to seasoned experts who have the know-how and abilities to finish it both safely and successfully.

To sum up, selecting and installing a smoke car for your fireplace or solid fuel boiler is essential to keeping your heating system effective and safe. Your smoke car can be made to comply with all rules and regulations by taking into account things like fuel type, home design, and local laws. To ensure the best outcomes, don’t forget to enlist the assistance of trained professionals during the installation process. You can feel secure and content while utilizing your solid fuel heating system when you have the proper smoke car in place.

Design and principle of action

The following components are part of the exhaust smoke car for the factory-manufacturing boiler (the device is depicted in the diagram; its position matches the points):

  1. Metal heat -resistant impeller with shoulder blades bent under 90 ° relative to the working wheel.
  2. Fixing plate.
  3. Low performance electric motor (20 … 50 W).
  4. The power cable connector.
  5. Remote control and control bodies.
  6. Sausage and capillary tube of a temperature sensor connected to an emergency thermostat.
  7. Network wire with a fork.

Note: Kalvis Kalvis Kalvis boiler smoke pile is one example. Other fan designs have different case shapes, such as a box, hemispherical landing site, or snail. The component set is comparable.

The unit is fastened to a unique box that is situated next to the chimney pipe on the back panel of a residential TT boiler. The remote control is placed separately and the temperature sensor flask is inserted into the water shirt’s submersible sleeve.

The forced release of hot gases from the boiler heat-tube heat exchanger into the chimney is the fundamental mechanism behind the operation of the smoke exhaust system. This is how the algorithm appears:

  1. The fuel is filled with firewood, a rod is made.
  2. The loading door is locked, the blowing door is opened. The fan is turned on the key on the remote control, then the performance is configured.
  3. Когда отопительная установка и дымовая труба прогреется, скорость крыльчатки вручную снижается до минимума. If the heat generator has enough natural traction, it is recommended to turn off the smoke carcass.
  4. When the coolant is heated to a critical temperature of 100 ° C or more on the command of the sensor, an emergency thermostat is triggered, turning off the fan automatically.

Reference: The ash door on TT vehicles that have automatic traction regulators doesn’t need to be opened. The air supply will be opened by the thermostat to the necessary angle via a chain.

The quality of the solid fuel, the combustion mode, and the degree of chimney warming all affect how big or small the traction fan performs. Preventing smoke from building up and seeping into the space is crucial.

Furthermore, it is impossible to go too fast because the pipe will retain the lion’s share of the heat. It is best to accelerate the rotation to its maximum speed before opening the door and moving forward.

Varieties of traction fans

There are various kinds of smokers available for wood fireplaces and solid fuel boilers:

  • boiler (design is considered above);
  • centrifugal channel;
  • overhead;
  • fireplace / stove (aka – roof).

Smoke exhausters are not the source of various nozzles that increase natural traction, such as rotating weathercocks, deflectors, and round rotating elements. The wind speed, which varies with the weather, determines how effective these caps are.

A pair of annexes or nozzles on the fan’s body define the channel fan. The apparatus is set up either horizontally or vertically in the chimney channel breakdown. The mechanism and operation of the device are comparable to that of the boiler smoke smoke detector.

The home boiler’s overhead smoke car is furnished with fixers—workers—and a semicircular platform. Installation is done on the chimney’s vertical (unleased) section:

  1. The opening is cut through the paper template in the pipe.
  2. The working wheel of the traction machine is inserted into the hole, the site with an electric motor is pressed to the surface with fixers.
  3. The connection is compacted by an asbestos cord glued to the inside of the mounting site of the smoke exhaust.

Note: The diameter of the gas pipe determines which overhead element is used. The video walks viewers through the installation process.

Fireplace electric hoods are installed on top of brick chimneys and fastened with spacer bolts. After passing through the pipe, the power cable is inserted into the room adjacent to the house.

Three criteria must be considered in order to select a traction machine:

  • The power of the heat generator, models of smoke exhausters are designed for boilers performance up to 20, 30, 50 and 100 kW;
  • Installation point – on the boiler itself, a pipe or a head of the head;
  • For overhead models – the diameter.

When you need a smoke exhaust

Due to the increased resistance of the heat exchanger, where the gases repeatedly change the direction of movement along the frying pipes, manufacturers of heating equipment finish their products with traction fans. The objective is to maximize the heat produced by combustion products and improve boiler installation efficiency.

Nuance: An electronic unit regulates the smoke exhaust system in the factory-configured boiler in accordance with the combustion process. Such consistency is not possible when installing a fan unit on a "brainless" heater; instead, you must purchase an automation unit or manually change the revolutions.

The following scenarios demonstrate how the use of smoke carcasses can enhance the operation and upkeep of solid fuel heat generators:

  • Problems with traction – wind blowing, air traffic jams in the gas, many turns, restoration of the diameter;
  • Due to the features of the design, the boiler smokes into the room when the door is opened;
  • The height of the chimney is insufficient or the cut of the pipe hit the wind support area behind the roof ridge or another building;
  • Cracks appeared in the brick pipe, from where the smoke seeps.

A crucial aspect. If there is no influx of air from the street into the boiler room, no fan will save the day. The shoulder blades will mix the air in place after the working impeller creates a slight vacuum initially. Product ventilation is necessary for any heater to function normally.

Certain wood boiler designs, like the mine type, have a tendency to release smoke through an open loading hatch. Heat generators featuring a three-way heat-tube heat exchanger with higher resistance exhibit a similar picture. Installing a traction or diet machine that is managed by the controller is the solution to the issue.

There is a flip side to using smoke exhaust to strengthen natural traction. You can dispose of the unit if, upon warming up the pipe, the natural hood has not been restored and it is not possible to turn it off. Imagine for a moment that the fan has stopped and the electricity supply has cut off in the middle of the night. Smoke will fill the boiler room while the chain thermostat covers the damper.

Suggestion made. The charred remains shouldn’t turn into a miracle cure. Make sure you take action to get traction back by fixing or renovating the gas station in accordance with the guidelines provided in the boiler’s instructions.

Which is better – smoke exhaust or supercharger?

These kinds of questions don’t come up when a manufacturer incorporates a traction turbine into a heat generator. Adding an exhaust fan to a standard direct-burning boiler is another matter. It is important to realize that in this instance, the smoke carcass only helps to strengthen traction and create a vacuum in the firebox. There are several bad moments ahead of us:

  1. Without an electronic control unit, performance will have to be adjusted manually. Automatic maintenance of the temperature of the coolant is excluded.
  2. When air is supplied through the open door of the ash chamber, the fan will force the boiler to work at the maximum. Setting up long -term burning mode will not be easy.
  3. In the case of an emergency stop of the impeller, the fuel combustion will not stop, since the gases freely pass through the snail or the smoke exhaust hull. Air penetrates the furnace, the probability of overheating increases.
  4. The working wheel and the inner surfaces of the unit are covered with soot, which must be removed. The speed of sticking depends on the moisture and resinchiness of the wood.

Remark: We fail to address the fan’s electricity consumption. Since the consumption is minimal, it won’t significantly affect the overall cost of heating.

To eliminate the shortcomings mentioned in paragraphs 1 and 2, replace the smoke exhaust with a controller that regulates the water shirt’s temperature and the impeller. The cost of electronic blocks ranges from $50 to $100 at. e.

Since Ducheus machines and the controller always cooperate, the following issues don’t exist:

  • The supercharger changes productivity and turns off at the command of the control unit, the coolant heats up to a given temperature;
  • In the process of combustion, the ash door is hermetically closed, the air is supplied through a separate channel;
  • When electricity is turned off, the air channel is automatically overlapped with a gravitational damper;
  • The impeller blades do not come in contact with hot smoke and soot.

Reference: Because the operation of this kind of heater is dependent on forced air injection, boilers are always utilized in pyrolysis boilers.

Now, excluding the cost of the controller, let’s compare the prices of the traction and stubborn fans. For TT KOTLOL, a 30 kW smoke car will set you back 90 at. e., Supervisor: 60-65 at. e. The impeller is made of metal (with a boot made of plastic) and the exhaust unit’s design prevents the hot gases from overheating the electric motor, which accounts for the difference.

Regarding installation complexity, the units are roughly equivalent. Cutting or disassembling the pipe is required for the injection snail installation, along with sawing the opening in the door ash and smoke exhaust. It’s easier to install the roof hood, but a long cable needs to be pulled.

In summary, only add smoke exhaust if absolutely necessary. Better yet, fix any mistakes that were made when building the gas. You can add more turbochargers whenever you want; the system will protect and automate the combustion process.

How to make an exhaust unit

The creation of a balanced impeller is the most challenging aspect of building a smoke car by hand; a home craftsman can handle the remaining details with ease. The normal noise of the fan will become a roar due to vibration if the working wheel’s shoulder blades vary in weight.

Apart from the blades, you will require the following items:

  • engine with an electric power up to 150 watts, the maximum speed of the shaft is 1400 rpm;
  • Snail or homemade box shown in the drawing;
  • shaft with ventilation holes or an additional cooling impeller;
  • Studs with nuts M8 and the rest of the fasteners;
  • power cable.

We provide the easiest route for average homeowners to take: purchase a factory-built electric motor with a cooling impeller and a working wheel, cook a box, and pick up an entirely functional channel smoke car for TT Kotla. Watch the video to learn how to do it properly.

Choosing and installing a smoke car for your solid fuel boiler or fireplace is crucial for efficient heating and safety in your home. It"s essential to consider factors like the type of fuel you use, the size of your heating system, and your home"s layout. Proper installation ensures proper ventilation, preventing harmful gases like carbon monoxide from accumulating indoors. Additionally, selecting the right smoke car means considering its compatibility with your heating system and ensuring it meets safety standards. Professional installation is recommended to guarantee proper functioning and minimize the risk of accidents. By choosing and installing a smoke car carefully, you can enhance the efficiency of your heating system and safeguard your home and family.


It is rare to use a smoke car to create artificial vacuum in residential solid fuel boilers. The technical solution raises the structure’s cost and causes issues with operation. Keep in mind the type of fuel you previously used before attaching a traction fan to a chimney. Forget about the boiler’s smoke exhaust if burning wet wood, agricultural waste, or inferior briquettes; you will need to clean the impeller once a week. Installing a supercharger along with a control unit is preferable.

Choosing a Smoke Car Installing a Smoke Car
Consider the size and type of your boiler or fireplace. Ensure proper placement for optimal smoke extraction.
Check for compatibility with your heating system. Follow manufacturer instructions carefully.
Look for durable materials for long-term use. Use appropriate tools and materials for installation.

Making the right choice and installing a smoke car for your solid fuel boiler or fireplace is essential to guaranteeing the heating system in your house operates safely and effectively. Knowing the important variables at play will help you make decisions that will ultimately work out well for you.

First, think about the kind of solid fuel appliance you own and its particular needs. When choosing a smoke car, different boilers and fireplaces may have different requirements. The best smoke car for your setup depends on a number of factors, including the type of fuel, combustion efficiency, and ventilation needs.

Next, put safety first above anything else. A smoke car must be installed correctly to reduce the possibility of smoke leaks or backdrafts, which can cause carbon monoxide poisoning or even fire dangers. Make sure the smoke car is installed by a trained expert who complies with all safety rules and specifications.

Consideration of efficiency is another important factor. Your solid fuel appliance’s heat output can be maximized while fuel consumption and emissions are reduced with the aid of a well-designed smoke car. To maximize performance, look for smoke cars with features like insulated liners, adjustable dampers, and effective airflow designs.

Your smoke car’s continued efficacy and safety also depend on routine maintenance and inspection. The performance of the smoke car can be impacted over time by soot accumulation and wear and tear, which may result in problems like decreased efficiency or a higher risk of chimney fires. To ensure that your smoke car is in excellent condition, schedule routine cleanings and inspections by a trained technician.

In conclusion, there are a number of factors to carefully consider when choosing and installing a smoke car for your solid fuel boiler or fireplace. These include the type of appliance, safety regulations, efficiency considerations, and maintenance requirements. You can benefit from safe, effective, and dependable heating in your house for many years to come by taking the time to make educated decisions and investing in appropriate installation and maintenance.

Video on the topic

The engine smoke car

The modernization of the boiler. Installation of the smoke exhaust.

The work of the smoke car on the TT boiler (fan of the viburnum) 12 volts

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Michael Kuznetsov

I love to create beauty and comfort with my own hands. In my articles I share tips on warming the house and repairing with my own hands.

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