Same coil dimensions and threading... yes it fits for both Nautilus and Nautilus mini.
The bigger question is why are your coils burning fast as I doubt BVC will really last longer; it will definitely give more taste, though. Define "burn easily": a week or less? A coil should be able to go through a 30mL bottle on average at the very least (still recommendable to change them every 30mL for max vapor and taste). Mileage will vary depending on juice composition. VG is harder on coils than PG. Darker juices also tend to gunk up coils faster, but that is not standard. Have you tried juices from different vendors?
I've had bdc coils last as long as 6 weeks and as little as one week. Never killed one in a matter of a couple days.
What exactly are you running these heads on? What voltage?
maybe you're just cooking them by running them too hard?
Ask about the ratios, they should know or else they know squat. Do you really mean a smoke shop or a vape shop? I wouldn't trust a smoke shop with e-juice at this point...
Not too sure how I feel about the BVCs on the nautilus ... after reading how great the flavor is, this last time when I started running low on the BDCs, I placed an order for BVCs. I do not find a flavor difference between the two ... but the BVCs "spit" hot juice up the drip tip on frequent occasions. Never had a BDC spit at me! I'm running 1.8 BVC coil at 4.2 on a Provari. Guess I'll just run through this pack of 5 replacement BVCs and go back to the BDCs.
Thank you, Alto! I had forgotten I used to vape at about 4.6 or so when I was a "carto girl", and then had to turn it down when I switched to the BDCs!
I have advice for you if you use bvcs, they're great but have each coil dedicated to one flavor, inside the atomizer where the juice is stored it is very thick so it prevents dry burns but also if you wash it water gets like stuck in it and ruins the flavor of the ejuices you put it in it, id suggest have 1 atomizer= 1 flavor, never wash just dry burn