I am completely renovating our house(Kitchen,Bathroom,New On-suit and Laundry room)and installing a new gas power vent water heater. I am also completely replacing all the old copper line with new Pex 3/4" and 1/2" with manifolds. That allows me to position my gas water heater were ever it would be the most practical. I have a unfinished crawl space which is approx 6' high so room is no issue and I have access to all the old plumbing which runs under and some along inside the floor joists. My question is if you had the opportunity to place your water heater where ever you wanted where would up place it, closest to the kitchen (we entertain a lot and my wife does a lot of cooking) we have 2 sinks and a dishwasher, or closest to the 2 bathrooms which are back to back. I am thinking of hot water supply to each area and which would be the best.