Firstly, Happy Thanksgiving, hope you all have a great day with friends and family. I am having some issues finding exact NFPA code for a emergency off switch location for a gas fed boiler system. Its in a garage and its shutoff is located within a few feet of the boiler. Is a switch also required at the garage interior door as well? Thanks for any help with this
Google: heat system safety switch requirements
Yep I tried quite a few different ways of wording it. Most code talks directly about oil fed boilers needing a switch at the top of basement stairs. Not too much about gas fed though and nothing about being at the garage entrance door
It’s actually an interesting question. I just had a client ask me on Saturday about having a remote switch. Most of the new builds with gas heating I see only have a switch on or near the appliance. Maybe D. Anderson or E. Munoz will chime in.
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If I’m not mistaken the intent of a doorway mounted switch to oil fired boilers is to be able to stop fuel delivery (pump operation). A switch would not accomplish that on a gas fired boiler so is not required at an entry location (boiler room).
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Except this thread is discussing “Emergency off switch requirements”, not shutoff valves. 
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The emergency shut off switch at the door is only required for commercial applications.
Check out CSD-1 boiler installation requirements.
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An emergency off switch for the building heating system should be found outside of the basement or other boiler or furnace room location and accessible so that an occupant can, in an emergency, turn off heat without having to enter a possibly smoky or dangerous area.
I think you’ll find that it is also a requirement of NFPA-31.
Not always adhered to though.
NFPA 31 for oil burners requires the “emergency switch” to interrupt the BURNER SUPPLY CIRCUIT, not the appliance power circuit. It is NOT the same as the “service switch” on the unit itself. The switch must be located outside of the room where the burner is installed.
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Thanks for the correction.
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Thanks for all the feedback guys