Garage heater wiring question

[jjscott]

I’m planning to install a Reznor natural gas garage heater with a dedicated circuit and I have a few questions. The on-line manual says the “full load amps” is 2.4. It also says the “Maximum Over Current Protection” is 15. It requires a minimum temperature rise rating of 60C. What it doesn’t say in the manual is the wire size and type. It says the minimum wire size will be listed on the unit, which I don’t have yet, but I want to start pulling wire to get a little ahead of the game.

My question is what size wire & breaker do I need? I’m guessing the Maximum Over Current Protection value dictates the breaker size. Is this correct? If so, would 14/2 with ground work for the wire?

The wire will be run from my breaker panel in the basement, through an adjoining wall between my garage & family room, and then terminating in the garage. Do I need any special wire since it will be run in the basement and out in the garage? Not sure if there is a moisture requirement for potentially damp environments.

 

[Norcal]

14 AWG wire is fine. On a phone so hard to comment further.

 

[naturalgas]

14/2 15amp dedicated circuit


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[Bert_]

Over current protection is a breaker or fuse...

 

[wyliesdiesels]

Since this is a gas heater, I cant imagine the manu. requiring a dedicated circuit for a 2.4a load.

Do you have a 15a lighting circuit that is lightly loaded?

#14 is the smallest building wire available and @ 60c temp rating, the ampacity is 15a...

 

[mrramsey]

I’m planning to install a Reznor natural gas garage heater with a dedicated circuit and I have a few questions. The on-line manual says the “full load amps” is 2.4. It also says the “Maximum Over Current Protection” is 15. It requires a minimum temperature rise rating of 60C. What it doesn’t say in the manual is the wire size and type. It says the minimum wire size will be listed on the unit, which I don’t have yet, but I want to start pulling wire to get a little ahead of the game.

My question is what size wire & breaker do I need? I’m guessing the Maximum Over Current Protection value dictates the breaker size. Is this correct? If so, would 14/2 with ground work for the wire?

The wire will be run from my breaker panel in the basement, through an adjoining wall between my garage & family room, and then terminating in the garage. Do I need any special wire since it will be run in the basement and out in the garage? Not sure if there is a moisture requirement for potentially damp environments.

15 amp breaker in the panel, 14/2 w ground for the wire. You will need to add a switch (standard single pole light switch) at the unit. If the wire in the garage is behind drywall romex is fine. If it is exposed run conduit. Here is mine just waiting for the heater. I ran a dedicated line for it because I will likely add an outlet for a new door opener.

 

[BlackJackJim]

I’m planning to install a Reznor natural gas garage heater with a dedicated circuit and I have a few questions. The on-line manual says the “full load amps” is 2.4. It also says the “Maximum Over Current Protection” is 15. It requires a minimum temperature rise rating of 60C. What it doesn’t say in the manual is the wire size and type. It says the minimum wire size will be listed on the unit, which I don’t have yet, but I want to start pulling wire to get a little ahead of the game.

My question is what size wire & breaker do I need? I’m guessing the Maximum Over Current Protection value dictates the breaker size. Is this correct? If so, would 14/2 with ground work for the wire?

The wire will be run from my breaker panel in the basement, through an adjoining wall between my garage & family room, and then terminating in the garage. Do I need any special wire since it will be run in the basement and out in the garage? Not sure if there is a moisture requirement for potentially damp environments.

A 15A breaker is fine, as well as 14 AWG size conductors. You could argue that the cable involves a damp or wet space, and you would be safe using something like THWN in conduit. I like PVC conduit since it is simple to cut and use. Those are nice heaters and I have been thinking of getting one.

 

[Norcal]

A 15A breaker is fine, as well as 14 AWG size conductors. You could argue that the cable involves a damp or wet space, and you would be safe using something like THWN in conduit. I like PVC conduit since it is simple to cut and use. Those are nice heaters and I have been thinking of getting one.

A 15A overcurrent device is required since 15A is the maximum allowed although standard circuit breakers are available in 10A they are not stocked everywhere.

 

[zmaxmotorsports]

Id mount an ssu or ssy and a box close to the heater for a,disconnect.
Then install a 15a fuse adapter and 15a fuse.

 

[D45]

Install a plug and use an outlet