This water heater seems to be more than enough to run our household. I have it turned down to the lowest settings for temp and water demand, and it is still very hot water coming out. Granted, there are no teenage girls running luxurious showers in this house. Our shower head barely triggers the units demand valve. I watched the flames sizes, as I moved the adjustment from low to high, and it is on very low. Not sure what we would do if it was higher... just melt the faucet or something. Used so little propane in 2 weeks I was amazed.
good price and nice prouduct. instal was a little involved, but that was because I was converting from a tank heater. Otherwise, High quality build and all parts included, except the plumbing I had to change of course.