Sorry to add what seems to be an opposing opinion, but, then, as said, other attendant systems have a great affect on the outcome.

We have a small house w/ forced hotwater bsbd. The tankless sytem that was here when we bought was tied into the furnace/heat system. When the heat was on in the house, both the pressure and the delivery of hot water were compromised.

We switched to (elec) hot water 3 years ago (60gal).

We've been much happier. Or, since the comparative is disappearing, "more happy."

Always call the place you live a house. When you're old, everyone else will call it a home.