3. TIL it costs less than a dollar to charge your phone all year

TIL it costs less than a dollar to charge your phone all year

Average ovens at medium-high (apx 2400w) is about 25¢ for 30 minutes.

Plus the A/C will need to remove that 2400 W x 0.5 hr = 1.2 kilowatt-hours of heat. A residential heat pump is about twice as efficient as resistance heating, so it'd need around 0.6 kilowatt-hours of electricity or $0.07 to transfer that heat outside, in addition to the normal cooling.

Technically, this applies to everything. So a 60W incandescent light bulb would cause the A/C to pull 25% of that, or 15W, in additional power whenever it's on. Even if the A/C is off during the day, unless the house reaches thermal equilibrium with the outside, the A/C will have to deal with that extra heat eventually.

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