My first brew here... doing the Brewer's Best DBL IPA kit. Been in primary for 12 days now, had some good bubbling in the airlock for a few days, long since settled down. Ambient air temps may not be optimal since I just have one propane heater and turn it way down when I'm at work, and a bit at night... initially my temps were pretty consistent in mid 60s but lately my recent temps have been in the low, low 60s even less, one accidental spike to 86. Anyway, to my question, since I am not going to do secondary and my temps are pretty low, I was going to do 3 weeks in primary, then bottle... so is it okay to do such a long fermentation on dry hops, which were added after day 3?