hmm.. would this be more appropriate? heater 2500 / 240 = 10.4 AMPS. x 1.25 for continuous load = 13. since 15AMP breaker is max 12AMP at 80% load. Isn't #12 the more correct choice since it can handle up to 16 amp?
btw: I should probably thank you guys for going thru a couple of these with me, and tolerating the side tracking at times.