If you're not really careful, it could get very expensive. I took my '94 Terry in for exactly that repair. Left with my 2010 Rockwood. Way more than I allotted for the water heater repair.
SKP 115048
2016 Winnebago View 24M
2015 Harley Heritage Softail as toad
Retired:
2007 Titan LE with the Big Tow Package
2010 Rockwood 8315BSS
2008 Suzuki GZ 250-Response to 3/4 Life Crisis :C