More Information Would Be Helpful
Are you having trouble with the electric or propane heating or both?
When you say a power surge fried your converter, what do you mean? Normally, the converter has nothing to do with the H2O heater.
If it's just the wind keeping the propane from igniting, create a wind shield with the materials at hand.
Good luck. You deserve a shower!
2007 Classic Limited 30
2007Chevy Silverado 2500 HD Duramax/Allison
Four Corners Unit WBCCI #8654, Affiliate NM Unit