As a fellow Seneca owner I wished for a bigger tank from Jayco. We winter camp regularly and a 40,000 BTU furnace can really draw down the stock tank in no time.
Where did you locate yours and can you ballpark the price? Did you install a remote-read gauge too?
2014 Seneca 37TS
Toads: 2014 Ford Explorer Sport or 2013 Ford Focus ST