It does get cold in Colorado from time to time. This has been installed for 2 years going on its 3rd winter season coming up and haven't had any issues. We check the heat tape and the auto valves on the pm to verify operation. The heater will also fire for a few seconds so the exchanger won't crack, a feature from Rinnai
The electrical meter was existing when the owner bought the home. He wanted the water heater to match that finish, so that is what was done. We cut the existing stucco and some rock then finished back around the unit.