heater
The heating principle of an electric heater, also known as a hot air blower, is a type of HVAC terminal device that uses various heat media (hot water, steam, electricity) as the medium. The D-type heating heater used in coal mines can quickly heat indoor air or outdoor fresh air, enhancing air circulation. Warm air blowers have already appeared abroad, but at that time, due to high prices, energy shortages, and other reasons, they were not yet very popular, and manufacturers mainly supplied them to some large enterprises. But in the 21st century, this product exploded in popularity, with a large supply of D-type heating air heaters used in coal mines From factory production, engineering construction, to agricultural heating, various industries and fields have rapidly occupied the market, replacing many clumsy and restrictive products such as boilers, heaters, and heaters. D20 electric heater is
