Hi All, It's time to replace the water heater in my 321. It has an Atwood ehm6 (6gal) currently. I am looking at replacing it with a Force 10 406011 6 gal. They have the same dimensions, however, I am concerned about the exchanger and in/out connections. I believe they are both located on the same side (which is needed). Anyone out there using the Force 10 water heaters with exchangers? Should I just bite, and spend a little more $$$ for Atwood replacement?