At this writing there wasn’t an enormous amount of information available. We will update this page once there is more information available.
ECOSMART US might not be a household name, but they do offer some quality products which you might consider. Based in Miami, FL they provide radiant heating solutions and spa and pool heating. Starting September 2013 they will be offering 4 gas tankless water heaters.
The only information regarding the gas tankless was for their ECO NGI 28 model. This model comes in both a natural gas and liquid propane option. This model has a max 180,000 BTU with a 0.82 energy factor.