Should I know the major technology turnover years in 5Wh AC, insulation, roofs, etc.?
What do you think of these types of maxims I've been hearing directed at people like me who are shopping for a used fifth-wheel?
1) "AC has become far more efficient since 2003 or so. If you buy an RV from before that, replace the AC even if it is working fine because you'll get electricity-savings payback in just a few years."
2) "On anything before 2000, expect a lot of uneven heating/cooling and wide swings in temperatures even if you get a newer thermostat."
3) "Major improvements in wall construction---both in savings on energy costs and in avoiding in-wall condensation and mold----mean that all but the higher-end pre-2000 RVs should be avoided and no lower and middle tier RVs before 2005."
4) "At 15 years old, count on a lot of appliances failing soon. At 20 years, consider them shot and needing replacement before you take the RV home from the dealer/reseller."
Yes, generalizations have a lot of drawbacks and what sort of useful concepts might be found within them?
Or do you have any maxims and general advice of your own? I can certainly afford to go newer and pay more if I wish, but sometimes I wonder if an extra $10,000 upfront only gets me an extra $5,000 in benefits? (And now that I'm retired, the value of my time dealing with mundane problem-solving or repairs is not what it was when I was a busy tech consultant. So I will be able to deal with shopping around for the best solution and even educating myself for a maintenance/repair that I would have hired out in the past without hesitation.)
[If your answers need more details about my situation and needs, see my signature below.]
FT'er,38' 5W/ToyHauler but no toys; rural eastern Texas 140mi.from Houston coastline.[On-grid gray/black-water code-compliant.] Interested in feedback re: climate/mold issues, vermin/pests/coyotes, energy-conservation tech & experiments, passive solar, RV security.