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    cnacowboy's Avatar
    cnacowboy Posts: 6, Reputation: 1
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    #1

    Nov 21, 2007, 10:34 AM
    Baseboard heaters
    I am getting ready to put in 4 baseboard heaters 3 of them will be in one room upstairs and the other downstairs.

    I need help wiring them all. Let me clarify, the 3 baseboard heaters need to be wired together on one breaker and the other will be on its own breaker.

    Help.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #2

    Nov 21, 2007, 10:40 AM
    OK we need to know the wattage of each baseboard heater.
    cnacowboy's Avatar
    cnacowboy Posts: 6, Reputation: 1
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    #3

    Nov 21, 2007, 03:07 PM
    Quote Originally Posted by cnacowboy
    I am getting ready to put in 4 baseboard heaters 3 of them will be in one room upstairs and the other downstairs.

    I need help wiring them all. Let me clarify, the 3 baseboard heaters need to be wired together on one breaker and the other will be on its own breaker.

    Help.
    OK I can run 2 basebourd heaters off one breaker the breaker is 15 amp and the heaters are like 6.3 amps each I want to run one heater upstairs and one down stairs but want to put a thermostate on each one also is this doable and can you give me directions?
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
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    #4

    Nov 21, 2007, 04:10 PM
    What is the wattage of each individual heater? Are these 220 or 110 volts?
    cnacowboy's Avatar
    cnacowboy Posts: 6, Reputation: 1
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    #5

    Nov 21, 2007, 07:20 PM
    Quote Originally Posted by ballengerb1
    What is the wattage of each individual heater? Are these 220 or 110 volts?
    220 each
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #6

    Nov 21, 2007, 07:23 PM
    Please provide the make and model number of the heaters.
    cnacowboy's Avatar
    cnacowboy Posts: 6, Reputation: 1
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    #7

    Nov 21, 2007, 08:10 PM
    Quote Originally Posted by tkrussell
    Please provide the make and model number of the heaters.
    Ferenfite basebourd heater both model no.s are f25408

    Thermostates are fta2ac I'm going to run 12-2 wire also
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #8

    Nov 22, 2007, 05:52 AM
    I am assuming the ferenfite is a typo for the actual brand name of "Fahrenheit", which is marketed by Lowe's.

    Each of these heaters are 2500 watts, and at 240 volts each draws 10.41 amps.

    The maximum current allowed on a 20 amp 240 volt heating circuit is 16 amps, so you cannot have more than one heater on a 20 amp circuit, let alone 3 or 4 units.

    A 30 amp 240 volt heating circuit can have a max of 24 amps, so you can connect 2 of the 2500 watt heaters on one 30 amp circuit.

    A 30 amp circuit will need all #10-2 cable.

    You can either run each heater on it's own 20 amp circuit with the #12-2 cable, each with it's own thermostat, or run two 30 amp circuits with all #10-2 cable.

    How would you like to proceed from here?

    I assure you if you do connect all these 4 heaters on a 20 amp circuit, you will have serious problems, unless you don't mind seeing fire apparatus parked on your front lawn.
    cnacowboy's Avatar
    cnacowboy Posts: 6, Reputation: 1
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    #9

    Nov 22, 2007, 06:30 AM
    OK it would be cheaper to run one breaker per unit so that's what I want to do


    Quote Originally Posted by tkrussell
    I am assuming the ferenfite is a typo for the actual brand name of "Fahrenheit", which is marketed by Lowe's.

    Each of these heaters are 2500 watts, and at 240 volts each draws 10.41 amps.

    The maximum current allowed on a 20 amp 240 volt heating circuit is 16 amps, so you cannot have more than one heater on a 20 amp circuit, let alone 3 or 4 units.

    A 30 amp 240 volt heating circuit can have a max of 24 amps, so you can connect 2 of the 2500 watt heaters on one 30 amp circuit.

    A 30 amp circuit will need all #10-2 cable.

    You can either run each heater on it's own 20 amp circuit with the #12-2 cable, each with it's own thermostat, or run two 30 amp circuits with all #10-2 cable.

    How would you like to proceed from here?

    I assure you if you do connect all these 4 heaters on a 20 amp circuit, you will have serious problems, unless you don't mind seeing fire apparatus parked on your front lawn.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #10

    Nov 22, 2007, 06:40 AM
    I think it would be cheaper to run all #10-2 cable, which would only require 2- 30 amp 2 pole circuit breakers.

    You will need to compare the cost of using #10-2 cable and 2 breakers to using all #12-2 cable and four 20 amp 2 pole breakers.

    Using four 20 amp circuits would probably be simpler, each circuit will consist of one 2 pole 20 amp breaker, #12-2 cable from each breaker to thermostat, then #12-2 cable from stat to heater.

    Using four 2 pole breakers will use up 8 breaker slots in your panel so your panel will need at least that many empty slots.

    While we are on the subject, are you sure your service can handle the added load of 10,000 watts, or 41 amps?
    cnacowboy's Avatar
    cnacowboy Posts: 6, Reputation: 1
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    #11

    Nov 22, 2007, 08:26 AM
    OK ill do the resurch
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #12

    Nov 22, 2007, 08:29 AM
    OK good luck, get back with what you decide and we can help further to connect the heaters.

    How will you determine if the service can handle the added load?
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