Hey guys I just set up the 75 last night and tonight I am going to put the trimac in tonight, I put the heater from the 29 in the tank and the water seems to be about the same temp as the 29 was with the heater in it. The heater is a 100w and it works extremely well I have had it for about 8 years now. But my question is should I just keep this one in the 75 just to add a little more heat? My house stays an average of about 73-75 degrees all year around. I know some people keep heaters off or barely ever use them during the summer but I was just wondering if this could work for the winter as well? If not thats fine too but I felt that I might as well ask before i go a buy another one