(b) Boilers used in the power plants of self-propelled vehicles designed primarily for the transportation of persons or property upon a highway, except vehicles used exclusively upon stationary rails or tracks.
(c) Boilers used solely for agricultural purposes.
(d) Steam or vapor boilers carrying a pressure of not more than 15 p.s.i.g., which are located in a private residence or in an apartment building with a capacity of less than 6 families.
(e) Hot water boilers operated at a pressure not exceeding 160 p.s.i.g. or a temperature not exceeding 250 degrees Fahrenheit that are located in a private residence or in an apartment building with a capacity of less than 6 families.
(b) Boilers used in the power plants of self-propelled vehicles designed primarily for the transportation of persons or property upon a highway, except vehicles used exclusively upon stationary rails or tracks.
(c) Boilers used solely for agricultural purposes.
(d) Steam or vapor boilers carrying a pressure of not more than 15 p.s.i.g., which are located in a private residence or in an apartment building with a capacity of less than 6 families.
(e) Hot water boilers operated at a pressure not exceeding 160 p.s.i.g. or a temperature not exceeding 250 degrees Fahrenheit that are located in a private residence or in an apartment building with a capacity of less than 6 families.
(b) Boilers used in the power plants of self-propelled vehicles designed primarily for the transportation of persons or property upon a highway, except vehicles used exclusively upon stationary rails or tracks.
(c) Boilers used solely for agricultural purposes.
(d) Steam or vapor boilers carrying a pressure of not more than 15 p.s.i.g., which are located in a private residence or in an apartment building with a capacity of less than 6 families.
(e) Hot water boilers operated at a pressure not exceeding 160 p.s.i.g. or a temperature not exceeding 250 degrees Fahrenheit that are located in a private residence or in an apartment building with a capacity of less than 6 families.
