I do my own rehabs - here is the basic tool bucket5 gal bucket w tool holding insert2 construction screwdrivers - they are flat metal back, you can hammer away on, GREAT for taking out painted screwspry barhammer3 pairs vice grips (small needle nose, med reg, and lrg reg)channel locks3 monkey wrenchs (s,m,l)2 chisels .75 & 1.5 inchnail punch setelectrical pen (beeps when live hot)wire strippers (klien)wire crimpers (klien)side cutters (klien)scissors - titaniumutility knife / box cuttertape measureextra razor bladespipe dope / packingglass cutterstud finderspackel kniferespirator- all the power tools i bring as needed- all supplies brought as needed (mud, paint, etc)

In my opinion, what is really valuable and will hold value are energy, water, food, shelter, land, metals (not gold), and anything else that people need to survive.What else determines value?

We operate in locales in Canada (NB, NS, PQ) with colder and longer winters than yours and, while it is necessary to install an auxiliary heating coil in the plenum of the air handler {building code requires it here}, you won't be relying on the coils throughout the heating season ... or even the day during most of the heating season,  Even when the coils are operating {assuming all coils are recruited} and you are at your lowest level of performance, you are functioning at the same efficiency as electric resistance heating or an electric furnace.

On top of that pipe, you are required to put a metallic tape just so they could detect when they wave that utility detector wand 10 years from now, and theres a 90% chance that the technology will outgrow that in 10 years.

The steel siding underneath is very shiny almost like galvanized metal but maybe even more reflection. 

His instructions to a maintenance engineer in a very large building was to use bleach to clean some very contaminated metal pipe fittings.

58 buick special23 bucket T (fiberglass) vette motor-red23 " T (METAL) "72 Lambo Jarama-red74 detomaso Pantera-painted red69 camaro 396 turbo jet69 camaro 302 DZ fully restored(Bought at Kruse and sold at Barrett-Jackson)74 mustang convert72 GTO convert94 Firehawk- still have it2005 Hennessey Viper with Daytona racing front end -convert (still have)Yes, I wish I still had all of them.

Even if it were true that all extraction of earth creates CO2 emissions (whether that’s oil drilling or mining for metals used for battery production), we still must always be pumping for oil that will eventually run out and gets harder and harder to extract because of that.

you mean like the one i have $13K all in invested in that has a newer metal roof, vinyl siding vinyl windows, updated electrical, new Allure flooring and new water heater and a 12 year old High Efficiency furnace, that im getting $725/ mo. for? 

My preference in rentals is traditional coil ranges.