is it possible to replace a suburban water heater with an atwood?

[Bocephus]

my 6 gallon sub. water heater is giving me nothing but trouble. i have stuck 200 dollars into it and it still doesnt work right. if i would have known this from day one i would have just got a new one... well, a 6 gallon atwood for sale about 70 miles from me. the guy has no way of sending me pics, but he took measurements and it seems like it would fit with little modification. instead of fitting in a 14x14 hole it would have to be cut to a 14x17 hole. does anyone know the adaptability of water and gas fittings? are they all the same? i just want to make sure im not getting myself into a mess by swapping brands.

[NWJeeper]

Water and gas fittings are universal among RVs. If you have the room to enlarge the opening then there should be no issue. I feel your pain though, I went through the same thing with a furnace on our old rig, finally gave up and bought a new one.

One question though, what is the old one doing (or not doing). Do you have very hard or mineralized water or has it ever been subjected to mineralized water for a long period of time?

[Bocephus]

it was missing parts and the gas valve was bad. i bought a new gas valve and other numerous parts that totally about $200. i still cant get it to work like it should. if i would have done my homework and saw how much a new one costs, i would have just gotten a new one from the word go.