are electric tankless water heaters more efficient than propane or natural gas?

2 Comments

1. y- man says:

   July 19, 2010 at 3:27 pm

   Are you talking about a on demand system? If so, they are, it won’t give you very hot water fast, but it’ll get there, the difference is that it doesn’t have to keep like 40 gal of water at 120 degrees, so it only runs when you need it. They also make a natural gas, and LP system that will give you hot water almost as soon as you turn on the faucet.
2. cliff b says:

   July 19, 2010 at 3:27 pm

   from what i have read in the long run no . u can go 2 newsday.com(a local news paper)look 4 home & gardens. he wrote an artical months back