Also, manufactures develop lifespans of these components by usage, which in our part of the country, our usage of a furnace is well below their usage calculations.  

I don't care about a college stats in a town where manufacturing is the king pin of the economy.

Have taken a hiatus from investing in real estate over the last 5 years to buy and grow a manufacturing business.

Here's info on Huntsville:Now Alabama’s largest city, Huntsville’s military (Redstone Arsenal), space (NASA), telecommunications (ADTRAN, AT&T), biotechnology (Hudson Alpha), diversified manufacturing (Toyota/Mazda, Polaris) and a variety of emerging specialties provide challenging work (#5 Best Places for Career Opportunities) in delightful surroundings (#3 Best Places to Live in the US).

We have a couple of hospitals that are smaller, but have a large # of travel professionals and we also have a lot of construction projects, manufacturing plants, etc for temporary workers.

Industrial is probably next or even tied with multifamily (think distribution centers and manufacturing). 

“Manufactured”?

Some major manufacturers and retailers -- including Microsoft, Apple and Walmart -- have already warned of disrupted supply chains, and have lowered guidance (or implied it) for 2Q20. 

We own manufacturing and construction companies, and auto repair shop (major lawsuit attraction, especially in our highly litigious region). 

The manufacture sent a repair man out who confirmed the refrigerator had an issue.