stainless steel tankless
GU100
All the right choices.
No matter which Eternal you choose, you'll get endless hot water, consistent pressure and never a cold water sandwich. When installed in optional recirculation, you'll save water by never waiting for hot water again.
The Future is Here - 98%+ Efficient - Eternal Condensing Hybrid
Clean
- 316L Stainless Steel Heat Exchanger w/built in 2 gallon reserve tank
- Meets NSF Standards for health and cleanliness
- Ultra low emissions (1ppm CO) leaves almost no carbon footprint and is safe
- Patented self-cleaning utilizes turbulent flow to flush sediments out
Clever
- 98%+ Efficiency saves cost, exceeds Energy Star standards, and qualifies for Tax and LEED credits
- Compact chassis can wall or floor mount; standard water connects on top
- Flexible NG / LP / Indoor / Outdoor / Direct Vent / Power Vent conversions in one unit
- 2" PVC up to 35ft or 3" PVC venting up to 100ft
- Dual Core CPU displays error codes and optionally controlled by up to 3 remotes
- Clip-on components can be easily serviced by technicians
Confident
- Full flow design enables high output without water pressure drop
- Thermostat and Flow Activation is compatible with WaterSense fixtures
- Easy integration with recirculation and no startup lag eliminates cold water sandwich
- Meets UL / CSA / ANSI / NSF and UPC standards
- Industry's BEST 15 year residential and 5 year commercial Heat Exchanger warranty
Models and Features
GU100 
- Up to 10 GPM unrestricted flow
- 100,000 BTU's Max Input
- Great for up to 2 simultaneous residential applications
- 1/2" gas line and 2"
and 3" PVC venting - Easy to integrate into existing recirculation systems
- 15 year no leak residential warranty only
