Hello, new here. I am starting to look at stoves. So far I am leaning towards the Harman P38+. I am also wanting to buy pellets soon at the good prices. My ? is can I leave them outside Uncovered, or maybe with a tarp? Most topics i have found regarding outside storage tend to be about suppliers. I have no real inside or covered storage. So is leaving them on the pallets with a tarp thru rain and summer humidity ok?