Building a new home in TN. 2 story, approx 4100+ ft under air.
Plans call for 2 water heaters. If both are in garage will it take too long for hot water upstairs?
Is it better to place 1 unit upstairs?
Would tankless upstairs be more efficient?
Have friend in the area w/ large house, takes 5-7 minutes for hot water upstairs. His tanks are in basement.