I have a question on figuring out how many appliances you can run on a 100 amp service.
I have an electric water heater, a newly installed washer and electric dryer, a fridge, microwave and toaster oven, coffee brewer and 2 5000 BTU air conditioners running on a 100 amp service.
From what I have read, this is ok. Some sites suggest that if you had an electric range and central air, that you would want to move up to a 200 amp service, but that often 200 amps is overkill.
A water heater though, uses a 30 amp breaker. It has two 5600 watt heating elements in it, which is 11,200 watts. At 220 volts, this is 50 amps! And yet the unit only has a 30 amp breaker, does only 1 heating element work at a time? Even if this is true, this means the water heater uses 25 amps. The electric dryer uses a 30 amp breaker. An electric washer apparently uses about 15 amps. This is 70 amps, without the toaster, microwave, coffee brewer, refrigerator or the air conditioners. NOt to mention a tv, computer etc etc.
And yet I have had an electrician tell me this is fine, have read online that this amount of load is fine, and my fathers house has similar appliances PLUS more/larger air conditioners and a dish washer, and he has no problems.
How can I be sure my service is enough? I also had an electrician tell me that 'each bus bar has 100 amps', and read it on another electrician forum I found, but that seems impossible. There is a 100 amp breaker on the main service, I dont see how you can put 100 amps of draw on each bus bar/side of the breaker box.
Anyway, i am trying to understand this, as it seems MANY people do not, and I know lots of people like to give out advice with no idea of what they are talking about (I have an uncle who does electrical work who told me "220 volt appliances are better because they are so cheap to run - they use half the amps, so they cost half as much to run!"
Any help is appreciated.