A motor operates a craneIf the power supplied to the motor is 6.5 kW, with what constant speed does the crane lift a 395 kg crate of machine parts?
Turn off the water to the garage and blow out the pipes with air pressureThere is no way to keep pipes from freezing in this caseInsulation just slows the pain.
Power Speed ForceSpeed Power / Force 6.5 kW / (395 kg 9.81 m/s^2) 6500 W / 3874.95 N 1.677 m/sThe speed would be actually lower depending on the efficiency.
Change out the light in the garage with a heat resistant porcelain socket and put in a 150 or 200 watt (per bay) light bulb or heat lampThe heat will stay near the ceiling and should be enough to prevent freezingVery cheap and easyI do it with a 100 watt bulb in my pump house.
Protecting the pipes with insulation will helpA heat tape is also a good idea.
In a unheated garage in Northern Michigan in the winter time, the pipes will get cold enough to freeze unless you either heat them or keep the water running so it can bring in additional heatThe only other choice is to heat tracing them or drain them Even 20 degs F for several months can get them cold enough to freeze.
