I'm just using the pipes it came with. I did buy an intake pipe so I could pull from air inside the tent thinking it would be more efficient intaking already warmed air but after testing it I don't think it'll be necessary.
If this thing works as intended I'll be super happy. I just had it plugged into a tiny NinjaBatt similar to a Jackery but way smaller and it pulled 13w to 25w the whole time but unfortunately didn't watch it on startup.
I just did 9 days archery hunting with mine out of a Kodiak 10x14 flexbow. Only used it for morning and nights to get changed and relax. Best purchase I’ve made in a while. The remote is so nice not having to get out of my bag to turn on some heat.