How to install a waste wood boiler with a water circuit on your own

Are you thinking about how to reduce the energy use and environmental impact of your house? One excellent option might be to install a waste wood boiler connected to a water circuit. By using renewable resources, it not only offers a sustainable method of heating your house but also aids in lowering your carbon footprint. With the help of this guide, you will be able to install a waste wood boiler with a water circuit on your own and take charge of the heating system in your house.

It’s crucial to comprehend how a waste wood boiler operates before beginning the installation process. In essence, it’s a kind of biomass boiler that produces heat by burning wood waste, like sawdust or wood chips. The heat is subsequently converted to water, producing steam or hot water that can be used to heat your house. Not only can you minimize the quantity of wood waste that ends up in landfills by using waste wood as fuel, but you can also take advantage of a renewable energy source.

Identifying the right boiler size and type for your home’s heating needs is one of the first steps in installing a waste wood boiler with a water circuit. This choice will be influenced by various factors, including the size of your home, the amount of insulation, and the climate. Selecting a boiler that can maximize energy efficiency and provide sufficient heating for your home is crucial.

After deciding which boiler best suits your needs, the installation site needs to be ready. This could entail making any required adjustments to your home’s heating system, as well as making space for the boiler and making sure there is enough ventilation. During this process, safety is of the utmost importance, so make careful to adhere to all manufacturer instructions and local building codes.

Now that the location has been ready, install the waste wood boiler and link it to the water circuit in your house. Mounting the boiler, connecting it to the heating system and water supply, and checking it for leaks or other problems are usually involved in this process. Even though the procedure could seem overwhelming, a lot of manufacturers offer thorough guidance and assistance to get you through each step.

Working principle

Boilers that run on recycled fuel follow the same general principle. It is the process of oil evaporating and the vapor from it burning.

The vaporization principle of oil

But this technology has a few subtleties. Numerous heavy metals, additives, and other substances are present in all used oils. The goal is to construct a unit that permits heat to build up internally rather than releasing all of these components into the chimney at once. Only when the boiler reaches its maximum temperature of 600 0 C does full oxidation of all elements take place.

In this instance, the temperature indicator is a crucial component. Without delving into lengthy explanations of chemical processes, we can sum up by saying that fuel can only burn and vaporize safely at temperatures of 600 degrees Celsius. A 200 degree deviation in either direction will cause the release of extremely dangerous and toxic substances.

Water circuit-equipped waste oil boiler

The design of a homemade waste oil boiler consists of two metal containers that are connected by a pipe but are situated at different heights. There is a chimney on the upper tank, and it needs to be at least one meter long.

The bottom tank receives the poured waste oil. Vapor is produced in the evaporation chamber when the upper layer of oil is heated. As it rises, it exits through the hole in the pipe, connects with the air, travels to the upper tank, and burns. Additionally, the combustion products themselves are released through the chimney via a pipe.

As a result, the room heats up but doesn’t release any hazardous waste that could endanger human health. This information promptly addresses the primary query that many people have before constructing a unit of this type: "How harmful is the waste oil boiler?."

The boiler’s waste oil scheme

The waste fuel boiler does not endanger public health when it is designed properly and all technical requirements are met. However, you must understand that this unit is only meant to be used for heating residential spaces and that you must strictly abide by the operating conditions. Such a device cannot be utilized to heat the house. It uses waste fuel, which is hard to categorize as clean fuel, after all.

In order to operate such a unit, one must have a thorough understanding of the oil vaporization technology and operating principle. Here, the oil’s vapors burn instead of the oil itself. It is possible to break down such burning fuel into lighter elements because the waste fuel is heated and starts to vaporize even before combustion begins.

Where are these heating units utilized?

  • in the production premises;
  • in animal housing;
  • in workshops and service stations;
  • in greenhouses;
  • In storage rooms and garages.

Almost any oil, including amortization oil, can be used as fuel for a boiler like this.

In this guide, we"ll walk you through the steps to set up a waste wood boiler with a water circuit for your home heating system. By repurposing wood waste, you can both reduce your environmental impact and save on heating costs. First, ensure you have the necessary tools and materials, including the boiler unit, piping, fittings, and insulation. Next, find an appropriate location for the boiler, preferably near the wood supply and with access to water and electricity. Then, follow the manufacturer"s instructions to assemble and install the boiler, connecting it to the water circuit of your home"s heating system. Make sure all connections are secure and sealed properly to prevent leaks. Once installed, test the boiler to ensure it functions correctly and adjust the settings as needed for optimal performance. Regular maintenance and inspection are essential to keep the boiler running smoothly and efficiently. With a little effort and know-how, you can enjoy the benefits of sustainable heating with your own waste wood boiler.

Technology of oil vaporization in the waste oil boiler

There are two methods for fuel combustion and oil vaporization to happen:

  1. Ignition of a liquid substance. In this case, the vapor will be released, which will burn out in a special chamber.
  2. Casting liquid on a heated surface, which will result in the formation of vapor.

Using a metal bowl that is hot and emits waste oil is a straightforward method of putting this technology to use.

The fuel dripping principle

The key is that the fuel is sharply vaporized rather than heated when it comes into contact with the red-hot metal. The vapor diffuses into the air that is pumped into the tank. Heat is produced as a result of the vapors flash and burn.

Making sure the burning mixture stays in the combustion chamber for a long time is essential to maximizing the efficiency of such a unit. Installing a fixed impeller in the chimney’s mouth will help achieve this by assisting in the formation of the required vortices in the combustion chamber.

You can heat a sizable space with a homemade boiler that doesn’t have a water circuit. Its power is sufficient to heat a garage, a greenhouse, or a small workshop measuring 30 to 40 square meters.

Large rooms may require heating, in which case a boiler with a water circuit should be used. In addition, the fuel usage is extremely economical, ranging from 0.5 to 1 liter per hour.

One or two circuits may be added to such a homemade device, depending on the requirements and preferences of the owners of the residential property. One circuit will suffice if the only thing being done is heating the space.

It is required to create two circuits if hot water is required for household uses. In the upper tank, a heat exchanger serves these functions.

Even with their exceptional efficiency, fuel-universal usage, and great economy, foreign boilers seldom operate according to this principle. However, these units are frequently produced by domestic manufacturers and are extensively utilized in households.

The process of heating the bowl that the oil drips onto is the most challenging in the autonomous execution of such a construction. When making one by hand, the process is as simple as putting a gasoline-soaked wick inside the tank and lighting it on fire. Just turn on the oil supply once the bowl reaches the proper temperature.

Waste oil boiler

A consistent oil drip feeding is the second item to which attention must be given. Ensuring the ideal degree of spent fuel filtration is imperative.

This can be accomplished by simply attaching an automotive oil filter to one end of a tube that is lowered into a waste fuel tank. A minimum of one filter change should occur each month. More frequently if the fuel is contaminated.

Fuel pumps, which should provide the appropriate amount of oil to the tank, may also be the source of an issue. After putting together a design with two tees, a nipple, and fittings, you can milk "protection" against fuel overflow. A portion of the oil that is put in this assembly will be in the hose.

The remainder will just return to the tank. A similar plan is implemented, and the boiler’s factory design incorporates automatic overflow protection.

A portion of an everyday medical drip tip can also be used to drip fuel. This component is installed on the bottom fitting, and the frequency of drops is calculated using the regulator wheel.

To ensure that the fuel burns evenly without smoldering, the precise amount that drips onto the bowl must be used. Every time the fuel is changed, the frequency of drops needs to be adjusted again.

A good, contemporary waste oil boiler needs to have safety features to prevent fuel overflow and boiling of the oil. Make sure there is less oil in the tank than there is in the stove to prevent a fire.

It only takes the arrangement of a water jacket around the furnace’s body to operate a boiler with a water circuit. Additionally, you are free to use this circuit however you see fit, for example, to heat water or to supply heat for a large room.

A water circulation pump is required to connect the pipes that lead to the heating system to the tank.

Waste oil boilers appear to be reliable, affordable, and simple to use. However, how can we make sure that it burns for a very long time?

A means of extending combustion

Oil cannot be added while it is operating because doing so would be hazardous. It is not convenient to wait for complete combustion. Of course, a large fuel tank could be constructed, but that would prevent a lot of oil from heating to the necessary temperature.

An extra tank will be added, into which the primary fuel supply will be poured, to address this issue. The lower body will be linked to it through the concept of communicating vessels.

Advantages and disadvantages of the waste oil boiler

The waste oil boiler has benefits and drawbacks like any other heating device. We recommend that you become thoroughly acquainted with this list before deciding to execute it manually.

  • low cost of resources;
  • simple design and understandable principle of operation of the boiler;
  • the possibility of using the boiler for heating water (when building a water circuit);
  • rapid heating of the liquid;
  • possibility of manufacturing with your own hands;
  • compactness
  • high efficiency.

The benefits of such a boiler may be credited with its relative environmental safety, but it must be stressed that this safety can only be attained by rigorous adherence to all the operational and constructional details.

Make a boiler by hand

Even in the most severe frost, you can heat the workshop, greenhouse, and garage with the boiler "at the output" setting of 95 degrees.

You can incorporate a small cooking surface into the design to make it simple to reheat dinner or heat a kettle.

  • the need for regular cleaning;
  • Lack of support for this unit at the legislative level;
  • unattractive appearance.

As you can see, there are far more benefits than drawbacks to such a design for heating. Thus, we provide you with detailed instructions that even a novice can follow if you choose to construct your own waste water boiler using a water circuit.

Fire safety measures

It should be known that building something of this nature at home necessitates careful adherence to accepted fire safety codes.

It’s also advised to follow these guidelines to prevent a fire in the room:

  • The diameter of the chimney should be at least 100 mm. Ideally, use sandwich pipes, on the surface of which the minimum amount of soot is formed.
  • It is forbidden to store flammable objects (fuel tanks) in the immediate vicinity of the tanks.
  • All joints must be airtight.
  • The thickness of the walls of the tanks where fuel combustion takes place should be at least 4 mm.
  • In order to ensure the inflow of fresh air into the room and to avoid smoke, it is necessary to equip the boiler room with a forced circulation system. The norm of air exchange per 1 cubic meter of area is 180 m 3 / hour.

How to make a waste-water boiler with a water circuit with your own hands

To carry out this unit on your own, you will need to keep the following supplies on hand:

Diagram of the boiler using a water circuit for waste oil

  • sheet metal for the tank (thickness 4 mm);
  • sheet metal for the lid (thickness 6 mm);
  • pipe for the chimney;
  • oil pump;
  • fan;
  • steel adapters;
  • heat resistant sealant;
  • metal angles for supports.
  • A bolgarka with a wheel for cutting metal;
  • pencil and construction tape measure;
  • drill with a metal drill bit;
  • hammer and a set of keys;
  • welding with electrodes.

You can use prefabricated oxygen or propane drums to make the boiler’s operation easier.

Waste oil scheme boiler

The unit’s assembly layout will resemble this:

    The boiler body should be divided into 2 parts. In the upper part it will be necessary to mount the water jacket, and the lower part will be connected to the heating radiators. The lower part must necessarily be separated from the upper part, to which the pressure pipe is connected.

Dividing something

Holes in a pipe

It is essential to choose the location for the boiler before beginning any work. It is essential to ensure that nothing readily combustible is in the immediate vicinity and that the boiler body itself does not obstruct or interfere with work.

Boiler’s numerical parameters

Step 1. Preparing the base and walls

  • It is best to make a concrete screed under the waste water boiler with a water circuit. It is also possible to tile the floor and the wall to which the boiler structure adjoins.

Non-combustible material must be used to construct the walls.

Step 2. Manufacturing of the main boiler tank (internal)

This body consists of a tank with a water jacket, an oxygen supply channel, and a tube that allows oil to flow into the bowl.

A door must be made in the bottom of this body in order to remove the bowl and light the oil.

  1. Draw the scheme of the boiler.
  2. Measure the dimensions of the tank on the sheet metal and cut out with a bolt cutter.
  3. Cut out the bottom of the tank.
  4. Join the sheet of metal so that a 60 cm diameter pipe is formed.
  5. Attach the bottom.

Securely weld the base.

Join the rings together.


Step 3. Making the outer casing of the pipe

  • The length of the outer tube should be 5 mm less than the height of the outer tube.
  • Cut out a hole for the chimney, door, supply pipes (at the top of the pipe) and a hole for the return of the coolant (at the bottom) using a bolgar.
  • Put the outer part of the pipe on the inner part of the pipe and weld the bases tightly together.

Bowl with a welded base

Connect the plug

Building the water bath assembly

Boiler installation

Step 4. Making the air channel

  • Measure a pipe with a diameter of 6-8 cm on the sheet metal and cut it out with the help of a bolgar. The length of the pipe exceeds the total construction by 10-15 cm.
  • Measure 50 cm from one end and make a hole.
  • Now we make a channel for oil supply, which will be located inside the air supply pipe. To do this, we take a piece of pipe 8 cm long (d=1 cm) and weld it to the other end of the pipe of the same diameter but 50 cm long at an angle 130-150 0 .
  • Carefully install the oil supply pipe into the air supply pipe.
  • Make a cut-out for the compressor on the side of the pipe. Connect the fuel supply pump and circulation pump.
  • Placing the bowl into the boiler.
  • Fix the door.

Step 5. Installing the chimney

Install the chimney, which should be between 3.5 and 4 meters long, after the boiler has been firmly fixed to the base.

Put together the chimney using sandwich pipes.

Try to create a vertical pipe in this situation without any horizontal sections.

  • Connect the boiler outlet pipe with the chimney pipe.
  • Depending on what scheme of the chimney outlet: through the wall or roof, make markings. If through the wall, run the pipe through the slab.

Passing the chimney via the wall

The chimney pipe’s external fixing

Vent for the chimney above the roof

Step 6. Connecting the water circuit

A large room’s entire network of radiators needs to be routed around it before the boiler can be used as a radiator connection to heat it.

A 43 mm-diameter pipe is used to link the boiler and radiator.

    We take a small metal container (water tank) with thick walls, and securely fix it to the boiler with bolts. You can use welding as a fastener.

Linking the boiler to the infrastructure

Installing the pipe

Video. Boiler on waste wood with your own hands

In conclusion, installing a waste water boiler with a water circuit is a cost-effective substitute for heating residential spaces. With proper assembly, this system can provide warmth to a 30- to 40-square-meter room during the coldest winter months.

We provide you with access to a thorough video that demonstrates how the furnace operates using waste water and a water circuit.

Step Description
1 Choose a suitable location for the boiler, ensuring it meets safety regulations and has proper ventilation.
2 Install the flue pipe to safely exhaust gases outside, following manufacturer"s instructions.
3 Connect the water circuit to your existing heating system, ensuring proper insulation to prevent heat loss.
4 Mount the boiler securely, ensuring it"s level and stable.
5 Connect the boiler to a power source, following electrical safety guidelines.
6 Fill the boiler with water and bleed air from the system to ensure proper circulation.
7 Test the boiler for leaks and functionality before regular use.

For homeowners who want to lessen their energy expenses and environmental impact, installing a waste wood boiler with a water circuit can be a rewarding project. You can effectively heat your house and even generate hot water by using the heat from waste wood. But doing this project yourself calls for careful planning, familiarity with your heating system, and observance of safety guidelines.

First and foremost, it’s crucial to determine whether your house is suitable for a waste wood boiler before starting the installation process. Take into account elements like the boiler’s space requirements, the boiler’s closeness to an exhaust flue or chimney, and the circuit’s availability of water. Additionally, make sure that installing such systems is permitted by local regulations and obtain any required permits.

Choose a waste wood boiler model based on your heating requirements and financial constraints. Considerations include boiler capacity, energy ratings, and suitability for your current heating system. To ensure you make an informed choice, look into reliable brands and, if necessary, speak with heating experts.

The act of installation itself calls for accuracy and focus. Start by making sure the boiler’s location is properly ventilated and free of combustible materials. The boiler should be assembled carefully and connected to the water circuit in accordance with the manufacturer’s instructions. Following safety procedures strictly is essential if you want to keep your system functioning for a long time and avoid accidents.

Once the installation is finished, give your waste wood boiler routine maintenance to keep it operating at peak performance. This include cleaning the flue and boiler, keeping an eye out for wear and damage, and taking quick action to fix any problems that arise. In order to further minimize heating expenses and optimize energy efficiency, you should also think about making an insulation investment for your house.

To sum up, setting up a waste wood boiler with a water circuit can be a practical and green way to heat your house. You can take advantage of renewable heat sources, lessen your carbon footprint, and save money on energy costs by carefully planning, installing them, and maintaining them on a regular basis.

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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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