Bests & Worsts Reviews from Amazon

I have two of these in an insulated garage. The garage is large (3 car) and has windows in the west facing garage doors which allows the sun to help warm it in the winter. I only had one 15 amp circuit servicing the wall outlets in the garage so tapped into an outlet on the opposite interior wall that was on a separate 15 amp circuit and installed an additional outlet. That lets me run two units in the garage. I tell Alexa to turn them on about a half hour before I want to go out and work in the garage and by the time I go out the temperature is up to 66 or 67. We've had temperatures in the upper teens at night but our garage never gets below 50. I do not leave these units on all the time. I just turn them on if I'm going to be working in the garage.