Due diligence; I found these on the internet and have no real experience with them. They sound good and I pass it on!
Biomass Rocket stoves; not for electricity, for cooking and heat. I do have a small one for emergencies that I hope never to use.
I do not know if these would work in a Mobil home, but you could always add an addition and put it there! They have a cooking stove/water heater combination that might be useful for off grid living.
http://www.silverfire.us/stoves
And your wife will definitely not want one of these in your trailer!
http://www.richsoil.com/rocket-stove-mass-heater.jsp
and;
http://www.ernieanderica.info/rocketstoves
Good luck, keep warm!
Rocket stove roundup
http://www.freerepublic.com/focus/chat/2938364/posts
Weekly Preppers Ping (With some detailed pictures of my Rocket Stove)
http://www.freerepublic.com/focus/bloggers/2863465/posts
My Ammo Can Rocket Stove
http://www.freerepublic.com/focus/chat/2914240/posts