My girlfriend and I are going camping this weekend and she bought the Coleman Black Cat catalytic heater for a 3-5 person tent with only two people in it. Will it be enough? I am manly and of course do not need a heater when camping but just in case it were to get to cold is there any cheats to keeping the tent warmer, other than the obvious. <img src="/images/graemlins/grin.gif" alt="" />