電熱水燃氣鍋爐是一種燃燒清潔能源天然氣產出熱水的工業鍋爐，隨著國家燃煤整改政策的相繼實施，這種鍋爐的使用及推廣力度逐漸加大。由于鍋爐是特種設備，因此為了防止使用中出現安全事故，需要在設計的時候設計安全保護系統。燃氣熱水鍋爐設計有超溫、超壓、缺水、檢漏、熄火等多種保護功能，鍋爐運行安全可靠。
1、超溫報警和連鎖保護裝置
超溫報警裝置這個保護裝置一般安裝在熱水熱風爐的出口處，當燃氣熱風爐水溫超過規定的水溫時，自動報警，提醒司爐人員采取措施減弱燃燒。超溫報警和連鎖保護裝置連鎖后，還能在超溫報警的同時，自動切斷燃料的供應和停止鼓、引風，以防止熱風爐發生超溫而導致設備損壞。
Over-temperature protection device alarm device that is usually installed at the exit of hot stove, gas stove when the water temperature exceeds a predetermined temperature, automatic alarm to alert staff to take measures to weaken the burning fireman. After over-temperature alarm and interlock protection device chain, but also at the same temperature alarm automatically cut off the fuel supply and stop the drum, the wind, in order to prevent the occurrence of over-temperature stove caused damage to the equipment.
2、高低水位警報和低水位連鎖保護裝置
當熱風爐內的水位高于最高安全水位或低于最低安全水位時，水位警報器就會自動發出警報，提醒司爐人員采取措施防止事故發生。
When the water level inside the stove higher than the highest safety level or below the minimum safe level, the water level alarm will automatically alerts to remind fireman who take measures to prevent accidents.
3、熄火保護裝置
當燃氣熱風爐爐膛熄火時，熱風鍋爐熄火保護裝置作用，切斷燃料供應，并發出相應信號，提醒操作人員注意。
When the gas stove flame furnace, hot air boiler flameout protection device acts to cut off the fuel supply, and issued a corresponding signal to alert the operator attention.
