Some are Battery Operated (Save on electric bills! Also, if the power goes off, you will still have hot water running, 2 D Cell Batteries, they can last up to a year, average 6 months)
If you don’t want to deal with batteries, we also have Plugins , the gas units listed here will only work on 110V (not 220V or 240V)
On a separate note, our Electric Tankless Units work on 220V or 240V (sorry not Electric Unit available in 110V except ECO 70, ECO 40 and the Power Pak that works on both)

Best Of All, we also now carry the multi-functionality tankless water heater units that work on both (Battery Powered Ignition or Electric Plug-In as Alternative Power Source), also, they can be used either Indoors or Outdoors… no wonder these units are some of our Bestsellers!
We have them all, your choice!

Only Indoors units require venting.
Venting Kits and Parts can be purchased under Parts & Accessories.

Outdoor Units need a Rain/Wind Cap that will protect the chimney against the elements such as debris like leaves, twigs, branches, embers, sparks, water from rain, ice, snow…and even small animals like birds and small mammals…
Your Outdoor Tankless Unit will come with a FREE Stainless Steel Rain/Wind Cap … yes, providing here at no extra cost!