How much does a Navien Tankless Water Heater Cost?

I didn't know that the yellow csst flex connectors were rated for 199K BTU's what brand is it? If that's the 240 model
Plus you have to bond the gas line at that point so it adds to the difficulty. Hard piping looks so much more professional in my opinion.
Glad to see you supporting Navien. Great product

Its a water heater, not an investment.

Only 15 years? Lol