Hot tub on 100amp service


Old 03-24-09, 04:22 PM
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Hot tub on 100amp service

I have been offered a hot tub from my parents. I have 100amp service, here is a list of what I run in my 1080sqf house:

1. Fridge
2. Washer/Dryer
3. Dishwasher
4. A/C
5. TV, Computers etc.
6. Microwave

My heat, stove and water heater are gas.

Im looking for opinions on my ability to add a hot tub to the load? I know if I run my AC, dryer, hot tub (heat and jets) and dishwasher Im sure I would trip the breaker. Im looking for 'probable usage'. Could I run the tub with the AC on and a few lights in the house? Upgrading to 200amp service is expensive and would turn my free tub into an expensive investment. Does anyone have a similar setup? opinions?
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Old 03-24-09, 04:44 PM
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As long as your cognizant of the possibilities, I say go for it.

If everything is protected properly, you should be ok.

Is it a 50, 60 amp circuit?
Old 03-24-09, 05:20 PM
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50 amp tub.......................
Old 03-24-09, 05:26 PM
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Just to note...the tub probably requires a 50 amp circuit...but it won't draw that much normally.

On initial fire up of all pumps, blowers, heater..etc..a lot yes, but not 50. Once the motors have started, it will drop a bunch. And the recirc filter function if it has one, will be on low speed only.

Of the things you mentioned, the dryer and A/C are the biggest draws..just don't run the dryer when yer soaking.
Old 03-24-09, 06:06 PM
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And if your dryer ever needs replacing go with gas.
Old 03-24-09, 07:54 PM
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I have the same setup as you without issues. The main thing is if you have the room in your breaker panel.

If you are attempting this DIY, read up on the codes and requirements.
Old 03-24-09, 09:56 PM
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Sounds to me like it should be okay. If you decide to do the wiring for the tub yourself, please read up on how to do it safely. The hot tub is no place for mistakes.

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