Let's start with a typical 110 VAC service. You probably have 20 amp breakers in the service in the garage, and with at least 2 breakers, we have some idea of the theoretical electrical consumption.
Remember, Volts X Amps = WATTS, so 110VAC X (2 breakers X 20AMPs) = 110 X 2 X 20 =
2200 WATTS
Garage door openers have a "starting watts" and "running watts" ratings. A 1/4 horsepower generally has a starting watts rating of 1,100 and running of 550 watts. A 1/2 horsepower opener uses 1,400 starting watts and 725 running watts. These are general ratings and to be more precise you would need to know the brand, model and other information on a specific opener.
Garage door openers have a "starting watts" and "running watts" ratings. A 1/4 horsepower generally has a starting watts rating of 1,100 and running of 550 watts. A 1/2 horsepower opener uses 1,400 starting watts and 725 running watts. These are general ratings and to be more precise you would need to know the brand, model and other information on a specific opener.
45 watts
Hoovers use 1000 - 2000 watts
Abut 20 watts.
650 watts
About 10 watts
189 watts
25 watts.
it may use 15 to 25 watts
Usually about 1200 to 1500 watts.
250 Watts.