My dwarf Satsuma Mandarins are planted in 17" Rubbermaid plastic pots. They are about 42" tall and about 34" spread [canopy].
He says will be 8-15 ft for me...Is that still dwarf?
Yes, dwarf at 8-10ft. and semi-dwarf up to 15ft.
My plant is 4 yrs old and has fruited once I was told.I've decided to plant at corner of house so if temps DO go below 18 I can at least cover it some to protect it some and is also a warmer spot in the yard (climate pocket I call it)
Your Satsuma Setu will begin full production at 7-8 years. Mandarin oranges will tolerate 22*F-23*F, but active growth will take place starting at 55*F; temp. range of 70*F-90*F will be the ideal range. My Satsuma Mandarins are against concrete walls so they get reflected heat as well.
There are differing "micro-climate" locations [climate pocket as you call it] in the garden or yard; you just need to locate the best micro-climate for a given plant.
how far out from house do you recomend?????????
Considering that your tree will be planted directly in the ground and the height range from dwarf to semi-dwarf, and allowing for the spread [canopy]; in my opinion the tree should be located away from the house between 5-10ft.
For more info about Growing Citrus in the Ground, please see the link below.
http://fourwindsgrowers.com/growing/inground.html