Craft beer heating methods are generally divided into direct fire heating, electric heating and steam heating.
 
Steam heating way of beer equipment in a brewery
Steam is produced by the combustion of electricity, natural gas, fuel oil and bio-pellets. Where powered three-phase electricity is available, localised electric steam generators are mostly used. It has a low failure rate, low routine maintenance, is relatively trouble-free and complies with national environmental policies. Regular regeneration of the demineralised water system and descaling of the electric heaters is required, otherwise they may burn out and leak.
Gas boilers, whether LNG or LPG, are faced with gas safety issues. Otherwise, problems with ignition can sometimes and not always occur. Routine maintenance is required every season, LPG burners face problems with replacing and transporting gas tanks, and exhaust gases can affect the surrounding environment. Despite these problems, it can solve the problem of having only single-phase electricity on site or insufficient current-carrying capacity in the electrical wiring, and it can replace electrical energy with gas chemical energy, reducing much of the need for electrical energy. Oil fired boilers do not have burners that are as easy to use as gas fired boilers. Diesel additions, volatile odours, winter waxing and impurities clogging the oil circuit can occur, but it can solve the problem of no gas and insufficient electricity.
 
Electric heating way of beer equipment in a brewery
Electric heating is most commonly used, especially in the leaching mash I process in brewing equipment and rarely in the mash pot. The heat that accumulates on the surface of the electric heating tube is very high and difficult to conduct out in a short time, which can cause problems with burning material. In addition, the surfaces are difficult to clean and the use of the equipment is decreasing. In some countries there are electric heaters, electric heaters and heat transfer oil because there are strict regulations on boilers and problems in this area are not expected. Electric heaters are the most effective in terms of direct heating and then by transferring heat can solve the problems of combustion and difficult cleaning. However, it has to face the new problem of inaccurate temperature control and must have an empirical value to stop early.
 
Direct burner heating way of beer equipment in a brewery
The burner is taken out of the boiler and installed in the bottom of the heating pot. The combustion chamber is insulated with refractory material in addition to the bottom of the pan and is also very efficient. The chimney can be fitted with a casing for the discharge of heat recovery and reused water. This also avoids legal and regulatory restrictions and saves space in the boiler, which is much better than an electric heater. Direct fire heating units are much more expensive than steam heating so this needs to be taken into account.
 
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