The units are fairly easy to install and work well when required in the summer. However, after being turned off during the fall and winter the fan became very noisy when started in the summer. In the second unit it wouldn't even start. I had to open the unit and turn the fan by hand to get it going again. I suspect that the fan assembly (motor bearings?) is not designed to withstand very cold weather like the one in Canada. I would NOT recommend  the unit for the Canadian climate.