which reefer unit?

Only thing I will add is - stay away from the Carrier units if you'd like to enjoy your sleep...

 

Previous company had mostly old Reefers.
Mix of TK and Carriers.
I can tell you the Carriers weren't any louder than the TKs.

As long as you're not running junk doubt there is a big difference.

 

I don't believe you lose 5% efficiency a year or that floor only last 7 years. I pull a 1995 Great Dane with a TK SB3 Max unit and it will pull to -10 on an 80 degree day no problem. Wabash are junk from day one if not a Dane or Utility run

 

many shippers won't load a trailer that is 10 years old or older

 

There is a btu difference in the Units, the 200/210/230 are slightly less btu the. 300/310/330, they are all all the same engine and compressor but the 330/ get the higher btu from a higher rpm, my 200 will do 0 to -5 pretty easy, it will pull -10 but you can tell its working harder, I wouldn’t try -20 ice cream with it (which is usually insulated different anyways) but for your basic frozen stuff they work just fine, I have heard of some headgaskets issues on the 3xx models because of the higher rpms as well but who knows of that was maintenance or what

 

May want to keep in mind which unit to buy if hauling in n out of California! As per typical with this states money makers, they want the unit no older than 7 years and or retro fitted with Carb Compliant filter. TKS600 and S700 are lifetime carb compliant. Carrier has improved, but still my preference is TK.