: : I'm in search of a water heating tank extension as I need 80 gallons of capacity for family of 4 with jacuzzi. Do I need an extension or simply a new water heater? Any product recommendations? Stainless steel or cast iron? what will installation cost be?

: : Thank you kindly

I was told that I need additional capacity and that I should purchase a stainless steel tank or a stone lined tank. I was also told I need this set up on a separate heating zone. Does this sound familiar and which tank will be more efficient? What do you feel should be the cost?