Ok so I got a vogelzang 5790 pellet stove to try and heat my home with i plan on putting in the basement unfortunately I only have 1 spot I can put it so I'm going to have to run a 90 then 4' of straight to a 90° then a foot outside and here's where my problem lies I'm putting it through a basement hopper window (taking it out and putting in the through wall bracket if course" but if I just run it straight i will be about 9inches off the ground is that no good? Just stone underneath or i can put a water trap there or should I run it out and up then have the exhaust in witch case I would think I'd need a 4" pipe correct? seeing as how I'll be over 15evl? I can't find where it says how high it should be off the ground I'm just basically looking for help and the best way safest way to run it