Phil, I guess the referral of the Quantam furnace was by a shop that sells them? Have you looked into servicing or repairing the Hurricane? How much working room do you have where the Hurricane is now? If you must replace you should check into the Vehicle Systems,
Aqua Hot using a model compatible with the system configuration you have now. Good luck and keep us posted.
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Mike, Certified Master RV Technician
Amy, RV Merchandiser; Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser w/ Banks & 2 toads