[Ryland]

Originally Posted by Daox

I'm curious where you read this? The energy star list for on demand gas water heaters has tons of them with 80+% efficiency.

I read it in one of the bits of paper work that was talking about incentives for new water heaters and how they were not covering on demand water heaters because they were not efficient enough and their payback was sometimes as long as the life of the water heater.
But I did just look at the Energy Star list and am a bit confused now, as I do agree that there are a handful of good on demand water heaters out there.