<img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=209258409501153&amp;ev=PageView&amp;noscript=1">
Web-Banner-HOT50.jpg

50 Eco-Friendly Products Selected by Green Builder's Editors

 

Noritz-NRC661_web

This condensing type water heater captures heat from the exhaust gas, and uses it to preheat incoming cold water as it passes through the secondary heat exchanger. It operates with an Energy Factor of 0.91 for natural gas, and 0.93 for LP—ratings nearly ten points higher than a comparably sized, conventional tankless unit, and approximately 30 points higher than a standard, tank-type gas-fired water heater. The NRC661 uses recyclable components and replaceable parts, and the heat exchanger comes with a 12-year warranty.

Noritz NRC661 tankless water heater

View Project



Navien_NPE_web

Water heaters in this series have an energy factor of 0.98, and use approximately 40 percent less energy than a 0.60 EF storage type water heater. A secondary, stainless-steel heat exchanger traps and uses condensation created from incoming cold water, which cools the hot gases inside the unit. This condensation would normally escape through the vents in a conventional tankless water heater. NPE-S Series water heaters have a maximum input of 150,000 to 199,900 BTUs per hour, and meet Ultra-Low NOx requirements.

Navien NPE-S Series tankless water heaters

View Project