As soon as the missus finishes teaching and retires next spring we're going to be living in our 78 31' Excella year round, both on property in NE Washington and traveling. I'm refurbishing the tin can and am putting in a new water heater. I'm leaning towards the Girard tankless but am concerned as to quality and ability to survive boondocking and off-the-beaten path travel. It seems to run about 650 to 700 bucks most places but I've seen it with the winter kit from RV Parts in Santa Ana, CA. for 512 bucks. That vendor, though, has not satisfaction rating and I'm wondering if it's a scam. Your feedback is appreciated.