Especially my daughter who went to Alaska where the temperature drops to 50 below zero.

A savvy investor buying in the winter also checks the date to see if the water was weatherized before freezing temperatures or not.

We use the solar to preheat into a large (100usg) storage tank, then each unit has an in-line water heater to raise the temperature (if needed) on the way to the unit.  

What kind of temperature and environment are you dealing with for most part of the year?

Austin is hot temperature wise and real estate too.

Would tenants control the thermostat or do I set a base temperature?

Nationwide averages are about as useful to me as the average national temperature.

Joshua:I live in Wallingford, Ct.I work Part-time for a Limousine Service.Some of the slowest months in a Limo business, are January and February.The reason is, people do NOT want to deal with the weather.Canceled flights, missed connections, delays, etc.As a daily visitor to this site, I know that a lot of people live in areas, where the weather could cause problems with travel to the Denver area.I just looked at the month of February in the Denver Area, and the temperatures are from 17-49.Raymond

Dishwashers can sterilize items because the water temp and drying heat is so much higher than the water temperature used to hand-wash. 

No clue but i would like to live somewhere with an avg yearly summer temperature of 80 degrees, a beach, mountains and good food