According to this story you lead the nation in the job market. Yahoo StoryThanks be to fracking.Nothing like a few jobs to drive housing. @Mark Ferguson this should make your empire all that more valuable.

If you have older, upright washers, which could use 10 usg per load, a 40 usg gas tank would be sufficient and a 40 usg electric would be fine provided it has sufficient recovery (i.e. both elements are working)Just think ... in a typical home, folks often take a shower (2.5 usg / minute on most shower heads) and then do a load of laundry without exhausting a 40usg tank.If you put in a larger (60 or 80 usg) tank you will be incurring larger stand-by losses keeping the additional volume of water at temperature.

But the temperature has not been below freezing here yet. 

The plan would be to install it so you can mix cold water into the hot water line coming out of the hot water heater to reduce the temperature of the water going to your fixtures in the house from the 150 degrees coming out of the hot water heater. 

This higher temperature could weaken the roofing material(it could disrupt the cross-linking of the molecules that make up parts of the roof,) thus causing the western exposure to be more susceptible to solar damage- though that's just an educated guess.

.- Climate: I prefer milder climates, as extreme hot or cold temperatures tend to wear the properties more.

I would not shut off the water heater at the gas valve because you would have to relight the pilot later and leaving it on at a reduced temperature will help prevent rust in the combustion chamber and it probably won't use more gas than the minimum charge anyway. 

I'm not familiar with what type of system you have.Generally speaking, the most cost effective way to stay warm in the winter is to dress in layers and set a reasonable room temperature in the high 60s or maybe 70, but some tenants like to sit around in their shorts and t-shirts with the t-stat set on 80, then complain when the heat bill is high. 

Despite the local temperatures in Chicago still regularly hitting 90 plus, the cold winds of winter are barreling toward us like a freight train.

Differing temperatures outside the home and inside, moisture producing factors in the home, and not enough air flow and air exchange, can lead to moisture build up and often can be seen on the inside of windows.5.