A heater for liquid fuels or harmful liquids should not be installed in what area of the boiler?

A heater for liquid fuels or harmful liquids should not be installed in the steam or water space of the boiler because this area is critical for maintaining the integrity and safety of the boiler's operation. The steam or water space is where the primary functions of heat transfer and pressure retention occur. Introducing potentially hazardous liquids or fuels into this space can create a significant risk of contamination, overheating, or even explosive conditions if the liquids were to vaporize under pressure.

Additionally, any leaks or spills within this space could lead to severe safety hazards, not only affecting the boiler system itself but also posing risks to personnel and the surrounding environment. Safety codes and standards are designed to prevent such hazardous conditions, emphasizing that any heating applications for fuels should be located away from sensitive areas, such as the steam or water space, where they can interfere with the boiler's primary function. Thus, this practice is fundamental to ensure operational safety and efficiency in boiler systems.