Hi, I have been using a tankless water heater for eight years in my 24 ft. Colorado Yurt. I live in the yurt full time. I bought a Bosch and I have no complaints. I bought a smaller unit (I can use two locations at once). I live alone and I do my laundry on cold only so I never use two faucets at once. It has met my needs and has saved me money and helped out the planet all at the same time.