i own smal laundromat 15 top loaders,4 30lbs front loaders i,m considering to instal tankless hot water units i,ve got allready estimate on units TAKAGI AND RENITE they advaise me to install 6 units i live in 40degre zone but my water pipe run inside of my landry to my egsiting hot water unit and storyge tank im cnfused about will be worth it my investmet,any owners operators there who got those units instaled i would like to hear from them.my e-mail kaz.1197@hotmail.com