Unfortunately it is entirely different in practice.
How big of garage door opener do i need.
The garage door springs will provide most of the power in opening it but you will still need more power to ensure the garage door opener can do its job properly.
Follow the opener manufacturer s instructions for testing the unit s safety features.
Single garage door openers generally do fine with smaller openers while double doors may need a little more horsepower.
Since garage door openers is basically a motor it is rated with hp horsepower.
For example a wooden door is going to be heavier than a steel door so you ll need to plan accordingly.
If the garage is the main entrance to your home or you have a one piece door or a heavy oversized garage door you ll probably need one with the lifting power of a 3 4 to 1 1 4 horsepower opener.
The horsepower needed for your garage door opener is dependent on whether or not you want a long lasting opener verses replacing it every few cycles or the size of the door.
All in all the size garage door opener you need depends on your preference.
Garage door openers also feature a mechanism that reverses a closing door when the door contacts an obstacle.
The overwhelming majority of garage door openers we install are 1 2hp and in almost every instance we use those powered by dc motors to insure quiet performance.
For example if you would like to lift a double garage door one might suggest using a 1 2 horsepower because the door is heavier and larger.
Remotes transmit a unique code to activate the opener.
Hopefully now you feel better informed to purchase a garage door opener.
A 3 4hp motor has the additional power to compensate for these changes and the settings on the motor itself will not need seasonal adjustment.
Doors that are 10 feet wide by 8 feet tall are single car garage doors.
Garage door size and frequency of use.
1 2 horsepower garage door openers work well with standard aluminum doors in a residential garage.
In theory a garage door opener rated with 1 2 hp should lift about 185 pounds 84 kg while a 3 4 hp opener should lift more than 370 pounds 168 kg.
Newer garage door openers can also improve security.