Metal box above water heater

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP





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Morning ! Does anyone know what this is? It’s above the water heater in our garage and I just noticed it has a black mark that looks like it was left by smoke. Thank you all!










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    down vote

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    enter image description here



    Morning ! Does anyone know what this is? It’s above the water heater in our garage and I just noticed it has a black mark that looks like it was left by smoke. Thank you all!










    share|improve this question







    New contributor




    PamT is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.





















      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      enter image description here



      Morning ! Does anyone know what this is? It’s above the water heater in our garage and I just noticed it has a black mark that looks like it was left by smoke. Thank you all!










      share|improve this question







      New contributor




      PamT is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      enter image description here



      Morning ! Does anyone know what this is? It’s above the water heater in our garage and I just noticed it has a black mark that looks like it was left by smoke. Thank you all!







      electrical






      share|improve this question







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      PamT is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question







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      PamT is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question






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      PamT is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      asked 4 hours ago









      PamT

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      New contributor





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      Check out our Code of Conduct.






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          1 Answer
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          up vote
          3
          down vote













          That device shown in your picture is a small transformer mounted on an electrical box cover. Inside the electrical box the input side of the transformer is connected to the AC mains lines. The output side of the transformer provides a safe low voltage of 24VAC that connects to those small gauge wires that look to be brown and white/brown in color.



          The most likely usage is that this 24VAC feeds power to a door bell setup. There are also other usages for a 24VAC transformer such as this. This could include a special thermostat setup, a security camera setup, a sprinkler control system or even a low voltage lighting application.






          share|improve this answer




















          • Thank you so much, Michael for your time and your answer. Should we be concerned about the light black mark coming from it that is going up the wall?
            – PamT
            3 hours ago










          • @PamT - It is hard to tell just what that slight discoloration really is. If it just washes off easily with a damp rag it could just be dust/dirt accumulation that has resulted from circulating air flowing around the transformer.
            – Michael Karas♦
            3 hours ago











          • Awesome!!! Thank you again!! You’ve been super helpful!
            – PamT
            2 hours ago










          • Hi, PamT, and welcome to Stack Exchange. I agree with MichaelK. The faint "soot" is likely from dust-laden air rising from the warm transformer, and isn't a concern. (If Michael answered you well, please mark it as the correct answer by checking the big checkmark icon.)
            – Daniel Griscom
            2 hours ago










          Your Answer








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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          3
          down vote













          That device shown in your picture is a small transformer mounted on an electrical box cover. Inside the electrical box the input side of the transformer is connected to the AC mains lines. The output side of the transformer provides a safe low voltage of 24VAC that connects to those small gauge wires that look to be brown and white/brown in color.



          The most likely usage is that this 24VAC feeds power to a door bell setup. There are also other usages for a 24VAC transformer such as this. This could include a special thermostat setup, a security camera setup, a sprinkler control system or even a low voltage lighting application.






          share|improve this answer




















          • Thank you so much, Michael for your time and your answer. Should we be concerned about the light black mark coming from it that is going up the wall?
            – PamT
            3 hours ago










          • @PamT - It is hard to tell just what that slight discoloration really is. If it just washes off easily with a damp rag it could just be dust/dirt accumulation that has resulted from circulating air flowing around the transformer.
            – Michael Karas♦
            3 hours ago











          • Awesome!!! Thank you again!! You’ve been super helpful!
            – PamT
            2 hours ago










          • Hi, PamT, and welcome to Stack Exchange. I agree with MichaelK. The faint "soot" is likely from dust-laden air rising from the warm transformer, and isn't a concern. (If Michael answered you well, please mark it as the correct answer by checking the big checkmark icon.)
            – Daniel Griscom
            2 hours ago














          up vote
          3
          down vote













          That device shown in your picture is a small transformer mounted on an electrical box cover. Inside the electrical box the input side of the transformer is connected to the AC mains lines. The output side of the transformer provides a safe low voltage of 24VAC that connects to those small gauge wires that look to be brown and white/brown in color.



          The most likely usage is that this 24VAC feeds power to a door bell setup. There are also other usages for a 24VAC transformer such as this. This could include a special thermostat setup, a security camera setup, a sprinkler control system or even a low voltage lighting application.






          share|improve this answer




















          • Thank you so much, Michael for your time and your answer. Should we be concerned about the light black mark coming from it that is going up the wall?
            – PamT
            3 hours ago










          • @PamT - It is hard to tell just what that slight discoloration really is. If it just washes off easily with a damp rag it could just be dust/dirt accumulation that has resulted from circulating air flowing around the transformer.
            – Michael Karas♦
            3 hours ago











          • Awesome!!! Thank you again!! You’ve been super helpful!
            – PamT
            2 hours ago










          • Hi, PamT, and welcome to Stack Exchange. I agree with MichaelK. The faint "soot" is likely from dust-laden air rising from the warm transformer, and isn't a concern. (If Michael answered you well, please mark it as the correct answer by checking the big checkmark icon.)
            – Daniel Griscom
            2 hours ago












          up vote
          3
          down vote










          up vote
          3
          down vote









          That device shown in your picture is a small transformer mounted on an electrical box cover. Inside the electrical box the input side of the transformer is connected to the AC mains lines. The output side of the transformer provides a safe low voltage of 24VAC that connects to those small gauge wires that look to be brown and white/brown in color.



          The most likely usage is that this 24VAC feeds power to a door bell setup. There are also other usages for a 24VAC transformer such as this. This could include a special thermostat setup, a security camera setup, a sprinkler control system or even a low voltage lighting application.






          share|improve this answer












          That device shown in your picture is a small transformer mounted on an electrical box cover. Inside the electrical box the input side of the transformer is connected to the AC mains lines. The output side of the transformer provides a safe low voltage of 24VAC that connects to those small gauge wires that look to be brown and white/brown in color.



          The most likely usage is that this 24VAC feeds power to a door bell setup. There are also other usages for a 24VAC transformer such as this. This could include a special thermostat setup, a security camera setup, a sprinkler control system or even a low voltage lighting application.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 4 hours ago









          Michael Karas♦

          42.5k43480




          42.5k43480











          • Thank you so much, Michael for your time and your answer. Should we be concerned about the light black mark coming from it that is going up the wall?
            – PamT
            3 hours ago










          • @PamT - It is hard to tell just what that slight discoloration really is. If it just washes off easily with a damp rag it could just be dust/dirt accumulation that has resulted from circulating air flowing around the transformer.
            – Michael Karas♦
            3 hours ago











          • Awesome!!! Thank you again!! You’ve been super helpful!
            – PamT
            2 hours ago










          • Hi, PamT, and welcome to Stack Exchange. I agree with MichaelK. The faint "soot" is likely from dust-laden air rising from the warm transformer, and isn't a concern. (If Michael answered you well, please mark it as the correct answer by checking the big checkmark icon.)
            – Daniel Griscom
            2 hours ago
















          • Thank you so much, Michael for your time and your answer. Should we be concerned about the light black mark coming from it that is going up the wall?
            – PamT
            3 hours ago










          • @PamT - It is hard to tell just what that slight discoloration really is. If it just washes off easily with a damp rag it could just be dust/dirt accumulation that has resulted from circulating air flowing around the transformer.
            – Michael Karas♦
            3 hours ago











          • Awesome!!! Thank you again!! You’ve been super helpful!
            – PamT
            2 hours ago










          • Hi, PamT, and welcome to Stack Exchange. I agree with MichaelK. The faint "soot" is likely from dust-laden air rising from the warm transformer, and isn't a concern. (If Michael answered you well, please mark it as the correct answer by checking the big checkmark icon.)
            – Daniel Griscom
            2 hours ago















          Thank you so much, Michael for your time and your answer. Should we be concerned about the light black mark coming from it that is going up the wall?
          – PamT
          3 hours ago




          Thank you so much, Michael for your time and your answer. Should we be concerned about the light black mark coming from it that is going up the wall?
          – PamT
          3 hours ago












          @PamT - It is hard to tell just what that slight discoloration really is. If it just washes off easily with a damp rag it could just be dust/dirt accumulation that has resulted from circulating air flowing around the transformer.
          – Michael Karas♦
          3 hours ago





          @PamT - It is hard to tell just what that slight discoloration really is. If it just washes off easily with a damp rag it could just be dust/dirt accumulation that has resulted from circulating air flowing around the transformer.
          – Michael Karas♦
          3 hours ago













          Awesome!!! Thank you again!! You’ve been super helpful!
          – PamT
          2 hours ago




          Awesome!!! Thank you again!! You’ve been super helpful!
          – PamT
          2 hours ago












          Hi, PamT, and welcome to Stack Exchange. I agree with MichaelK. The faint "soot" is likely from dust-laden air rising from the warm transformer, and isn't a concern. (If Michael answered you well, please mark it as the correct answer by checking the big checkmark icon.)
          – Daniel Griscom
          2 hours ago




          Hi, PamT, and welcome to Stack Exchange. I agree with MichaelK. The faint "soot" is likely from dust-laden air rising from the warm transformer, and isn't a concern. (If Michael answered you well, please mark it as the correct answer by checking the big checkmark icon.)
          – Daniel Griscom
          2 hours ago










          PamT is a new contributor. Be nice, and check out our Code of Conduct.









           

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