Hot tub? Jan 18, 2022 12:46:54 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by esshup on Jan 18, 2022 12:46:54 GMT -5 After going the tankless whole house instant water heater around 2008, I wouldn't switch back. I'll most likely switch the other house over to the tankless system this year.