I stay in the northern area of India and have been using different types of heaters for warming a room. The one i feel s the most effective is halogen heater since they don't dehydrate the room like the others, but commercial heaters are ... how should I put this ??? SISSY ... they have only 2 - 3 halogen tubes and they don't heat the room fast enough. I planning to make one with 6 tubes. Any inputs ? any things i need to be careful about ??