燃油、燃气、电加热型蒸汽锅炉; 燃油、燃气、电加热型热水锅炉; 燃油、燃气、电加热型开水锅炉; 燃油、燃气、电加热型三用锅炉; 导热油炉; 燃煤锅炉;