Quote:
Originally Posted by Exeric
This is true. But your ROI has to include how many days there are in a year where really low temperatures exist. A lot of people use the principle of using the least expensive technology available that will cover 90 to 95 percent of their needs before going to a much more expensive technology that will cover 100 percent of their needs. I'm not one to decide which is best but I think both philosophies have merit.
How long you stay in your present house will enter into that equation.
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Since I'll be 68 this month, I don't plan on living in this house more than another 10 or 15 years..
This is just a freak cold spell. Right now, temperatures are normal in Greenland.
Record Cold Temperatures Are Projected to Hit Much of the U.S. | TIME.com
While the U.S. as a whole has warmed by about 1.3º F (0.71º C)over the past 100 years, winter has seen the fastest warming. Winter nights across the country have warmed about 30% faster than nights over the whole year. Since 1912, the coldest states have warmed nearly twice as fast as the rest of the country. In a warming world, winter loses its sting.
This kind of cold snap should be a rarity, in the coming decades.
If my ASHP Sanyos wear out, I'll buy more of the same.