This is tricky. Most houses in the US haves 120/240 volts. The 240 volts is done by getting 120 volts from each leg of the panel. (The three wires going in to the panel are 120-A, 120-B, and neutral. 120-a is "black", 120-b is "red" The 120Volts on each leg is compared to the neutral leg. The 240 volts is gotten from leg to leg. Putting a breaker in the panel and running the wire is not something you should do by your self if you are asking this question.
If you short something in the main panel, you could kill yourself and ruin your panel.
The panel is replaceable.
Before you hire an electrician or a handy man, ask them if they are familiar with NFPA 70.
If they have a sense of self preservation and some basic training, they will say something like there is no reason to work on your panel hot.
Good luck
yes
Four size D torch cells are needed for a 6-volt torch. Each size D torch cell typically provides 1.5 volts, so combining four of them will give a total voltage of 6 volts.
AWG # 10 wire on 30 amp circuit.
Add 25% so it comes to 42 amps
Your electric bill is computed in kilowatt-hours. This is a measure of power over a period of time, which is a combination of volts and amps. Amperage at 240v would be half that of 120v, but obviously the voltage is double. So the net watts are the same. As a result, your net kilowatt-hours will be the same whether you use 120v or 240v.
A 220 volt window air conditioner typically requires around 1,500 to 2,000 watts of power to operate efficiently.
15000btu is the largest and that's a 115 volt basically the same ,you just need a higher breaker is all
If it is a 240 volt conditioner it will stop. If it is a 120 volt conditioner it will stop if it is on the leg that has been lost.
For a 240-volt circuit that requires a 50 amp breaker, the appropriate size of the breaker needed is 50 amps.
12 V
no
The generator should be about ¾ hp.
If you are about to purchase a window unit, the answer depends on a few factors: 110/115/120 volt units are generally not available in the larger cooling capacity sizes. If you need to cool one average sized bedroom and have a 110 outlet near a window, this should do the trick, and you won't need an electrician to install new wires. If you need to cool an entire house, then you are going to need a 220/240 volt unit or multiple 110 volt units. If you are talking about a central system, then the furnas, or indoor section will most likely be 110 volt and the outdoor unit 220 and you will need to have it professionally installed anyway.
yes
Four size D torch cells are needed for a 6-volt torch. Each size D torch cell typically provides 1.5 volts, so combining four of them will give a total voltage of 6 volts.
if the nameplate says 120 volt, then yes. but might trip breaker if the circuit is overloaded and or only 15 amps
The wire size depends on how much current it will conduct.