Do-it-yourself gas burner for a sauna stove: how to make a home-made device
The key element of the heating gas unit is the nozzle-burner. It creates a mixture of fuel and air that supports combustion. If you made a gas burner for a bath stove with your own hands, this fact gives confidence in the reliability of the design. And this, you must admit, is a fairly weighty argument in favor of our own manufacture.
You can make a nozzle for a bath stove from improvised materials. Empty gas cylinders, scraps of metal pipes, parts from old equipment will be used. Before commissioning, the finished product is checked by specialists of Rostekhnadzor.
We will tell you how to do it right. Let’s show you how to get a certificate of suitability for a homemade gas burner. It confirms the safety of the device and allows the connection to the heating system of the bath.
The content of the article:
- The principle of operation and differences of gas equipment
- Design features and types of burners
- Preparation for the manufacturing process
- Description of the stages of work
- Modernization of heating equipment
- Protective automation system
- Gas supply to the bath
- Supervisory Requirements
- Conclusions and useful video on the topic
The principle of operation and differences of gas equipment
You cannot objectively judge the quality of the nozzle you purchased. Do not disassemble the finished product in search of possible defects. So there is a chance to damage rather than check an expensive device.
Collecting each element of the burner yourself, you will receive not only pleasant satisfaction from the work done, but also savings. At the same time, the operation and repair of the gas equipment of the bathhouse will become safe and conscious.
The gas heating unit is a housing bath stove with a gas supply device disposed therein. Here are the main elements of the control mechanism by which the fuel supply is regulated.
Particular attention in a heating furnace with a gas nozzle requires a chimney, which must be periodically cleaned.
The advantages of heating water and a bath stone with a gas burner include:
- Ease of workflow. To heat it, just turn the valve and ignite the gas in the burner. After an hour, the steam room of the bath will be sufficiently heated.
- Environmental friendliness. During the operation of the gas device, harmful emissions from gas combustion have the smallest volume compared to other types of fuel.
- Ease of maintenance of the burner and the furnace itself. No need to deal with the soot walls and remove waste, like coal or firewood.
The furnace can be equipped with special sensors that operate at a critically low drawing speed. In this case, the gas supply is automatically turned off.
Such a disadvantage of a home-made burner, as the additional design of permissive technical documents, pays off due to high productivity. Using a gas nozzle will save up to 30% in costs compared to solid fuels. Heating the bath with gas is two times cheaper than using an electric boiler.
Design features and types of burners
Important parameters of a homemade gas burner are safety, ease of manufacture, suitability for work in specific conditions, profitability. There are a lot of options for choosing modifications to the gas mixture supplying device. They are used for heating homes, heating water boilers, even for hiking.
Need to navigate this variety types of devices, in order to make a high-quality burner for a bath with your own hands.
By the way air enters the burner, they are conditionally divided into two types:
- Atmospheric, with natural air supply to the combustion zone.
- Fan, with forced air blowing by an integrated fan. They are blast and supercharged.
For do-it-yourself making, atmospheric-type burners are more popular with craftsmen. The simple nozzle design can be enhanced with additional options. For example, equip the burner with a thermostat, draft sensors, flame control, gas shut-off valve.
All these functions will increase the reliability and safety of work, but at the same time they will increase the cost of your product. How expedient the additional equipment you decide for yourself, based on the financial capabilities and frequency of operation of the burner.
Such burners are one or more metal hollow tubes through which gas fuel is supplied under pressure. Ignition is performed using a piezo lighter. Atmospheric nozzles are the cheapest and easiest to manufacture.
The main drawback of atmospheric gas burners is considered to be the need for a constant high-quality air flow. It will have to be equipped in the bathhouse additionally. Typically, an ash pan or an air duct connected to it is used.
Effective ventilation pipe with air intake from a neighboring room. At low draft levels, most badly burned fuel goes into the chimney. This poses a risk of gas leakage if there are microcracks in the brick massif.
Therefore, a brick stove with such a burner needs constant inspection and monitoring of the state of both the furnace array with smoke circuits and the chimney.
Complete set of blowing devices
Fan burners are a unit with a fan, sensors and controllers.The intake and injection of air from the street is automatic, the operation of the equipment is controlled by automation. The burning power in the blower can be adjusted to suit your needs.
Forced uninterrupted air supply allows you to increase the efficiency of the heating device, due to high-quality gas burnout. Accordingly, fuel consumption for heating the bath furnace is reduced.
The cost of equipment is affected by the connection of the burner to electricity. In case of possible power outages, it is necessary to have an alternative source, for example, a diesel generator or battery.
Both types of gas burners can be transferred from liquefied gas to main and vice versa. For the translation, the nozzles are replaced, due to which the volume of the gas mixture injected into the combustion chamber changes. Nozzles for replacement are selected in accordance with the manufacturer's recommendations, more precisely with the dimensions indicated by them.
Design Option Criteria
Each type of burner has its own parameters of power and gas consumption. An energy-dependent inflatable burner with more expensive components is used for a large volume bathhouse heating boiler.
To heat small and rarely used rooms, the installation of an atmospheric burner is recommended. A modest-sized sauna is enough for a model with a flow rate of 1.5-4.5 m3 in hour.
To maintain a comfortable temperature in the bath, a burner with a uniform distribution of flame is needed. All sorts of distribution tubes or torch dividers solve this problem. Usually they are round holes. But sometimes the format is changed to narrow slots, such nozzles are called slotted.
For any type of burner selected, it is preferable to make a long elongated tap. This will accelerate the heating of the furnace by increasing the area of the flame. After all, gas heating is allowed to be used only from a room adjacent to the steam room.
Preparation for the manufacturing process
Sorted out with gas burner device and having decided on the model, you can go to the next preparatory stage. Make a list of the necessary materials and tools.
As a basis, you can take the following list:
- steel tube 100 mm long and with walls 2 mm thick;
- fuel control valve;
- steel cap, piezoelectric element, rubber for the handle;
- welding machine, grinder.
Do not forget about trifles, such as connecting elements. For example, for a valve type VK-74 you need to stock up with a cap with a tapered thread.
Description of the stages of work
Before starting the assembly of the burner parts, it is better for convenience to have a drawn diagram on hand.
Self-made technology provides the following sequence:
- the base of the device nozzle is made using a grinder;
- the fuel dispenser is assembled from the valve and the steel cap wound around it;
- a cap is welded to the nozzle, then a piezoelectric element is installed.
When installing a burner assembled and tested by specialists, the distance limit must be observed. It should be no more than 5 meters from the gas nozzle to the end of the chimney pipe.
Modernization of heating equipment
Install a homemade atmospheric gas burner for a bath stove under the power of any home master. So, without any special expenses, a solid fuel boiler can be converted into a gas one.
Equipment existing in the bathhouse solid fuel stove A factory-made gas burner unit will require some adjustment. You will encounter the need to refine the dimensions of both the burner and the combustion chamber of a wood-burning stove.
For uniform heating of the furnace chamber, the burner should be placed closer to the bottom of the furnace and strictly in the center. It is unacceptable to place the source high and with an offset in any direction. In this case, the camera will not warm up completely. And the flame from the burner may touch the metal parts or the stove of the sauna stove.
Protective automation system
Unburned fuel in the sauna stove sometimes causes an air-gas mixture to explode. Therefore, it is necessary to control the flame of a working nozzle for your safety. This can be done visually or using automation with modern light-sensitive photocells.
The burner protection system automatically provides the following functions:
- power regulation;
- fuel and air supply;
- completeness of gas combustion.
It is necessary to take into account the increase in the dimensions of the modernized design. Especially with the small size of the bath room. If the size of the device is an important criterion for you, then for compactness all automation can be placed outside.
To control the combustion process, you can use a factory-made automatic plant type SABK-8-50C. It provides a high level of security thanks to four degrees of protection. The operation of the furnace gas equipment with such a device will automatically stop in the event of a dangerous emergency.
Gas supply to the bath
Sauna stoves with gas nozzles have become a technological breakthrough for people living far from forests. Given the low cost of gas fuel compared to firewood, the cost of heating the burner becomes completely negligible.
Steam room lovers can not limit themselves and use such a bath every day. Only, of course, if health allows.
Uninterrupted gas fuel supply to the sauna stove can be ensured from:
- Backbone networklaid to the suburban area and connected to the bath.
- Gas cylinderswhich need to be refilled periodically.
- Gas tankinstalled on a stationary or mobile site suitable for periodic refueling.
The most time-consuming procedure will be cutting into common gas systemsnear a city or rural settlement. It requires the acquisition, installation and registration of gas meters. Still need to issue permits, technical and payment documentation.
Connect ordinary gas bottle also require an invitation from a representative of the gas service and the preparation of technical documentation. Tanks have special placement requirements.
For example, gas cylinders cannot be installed in the bathhouse. They must be located outside in an easily accessible ventilated area. Nearby there must necessarily be fire protection equipment - fire extinguisher, sand.
A self-made sauna stove burner must have a certificate of suitability from Rostekhnadzor. In addition, special permission is required for operation. When using main gas as fuel, it is necessary to draw up such a document at the gas supplying organization.
The following requirements are imposed on the installation of an atmospheric model in a bath:
- minimum bath volume 12 m3;
- good ventilation;
- compliance with fire precautions;
- the top of the pipe is equipped with a spark arrester;
- good adjustable traction;
- the pipe is insulated from the ceiling and roof.
Cylinders can be placed in a special metal cabinet separate from the bathhouse. Gas holders placed in an underground tank at a distance of more than 5 meters from the bath. Connecting pipes must be checked by a specialist for leaks. They are made of steel, copper and other non-combustible materials.
As practice shows, it is better not to install a home-made burner without the permission of the authorized bodies. This is too risky in terms of security.
Having received permission to operate and all the briefings, you should ensure that the normal operation of the homemade burner in the sauna stove is observed. It is necessary to periodically check the joints of the burner and the pipeline for leaks. If necessary, clean the chimney and strengthen the insulation.
To track the dynamics of changes in the state of equipment, create a special log. Record in it the dates and operations performed on the maintenance of the elements of the gas unit. In the process of heating the bath with a homemade nozzle, follow the usual fire safety rules.
With the intricacies of manufacturing a gas burner from a conventional blowtorch will introduce next article, which is worth reading to master craftsmen.
Conclusions and useful video on the topic
Demonstration of the operation of a simple home-made burner in a wood-burning stove using a gas cylinder:
A gas burner with automatic control, which requires the master to manufacture an advanced level:
Factory-made furnace automation of SABK for gas burner devices supplied with fuel from a main or stationary source:
Making the simplest gas burner for a stove in a bathhouse with your own hands, which will last you for many years, is not difficult. Take the time to check the reliability of the design. Follow the rules for installing and storing autonomous gas fuel sources.
Mounting a burner with automation elements to control the combustion process and protective shutdown of abnormal modes will require certain knowledge and skills. If you are not confident in your own abilities, it is better to purchase a finished product.
Have you already made a gas burner and installed it in a bath stove? Do you have practical experience in heating a homemade bath and preparing permits, connecting a burner to a gas main? Share it, tell about important points, post your comment and photo below.