Eternal Hybrid Water Heaters
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 20 year residential and 10 year commercial Heat Exchanger warranty
Models and Features
GU145 (S) 
- Up to 14.5 GPM of unrestricted flow
- 145,000 BTU's Max Input
- Great for up to 3 simultaneous residential applications
- Copper internal piping connections
- Available S Option Factory Installed 316L Stainless Steel internal piping connections
GU195 (S,M) 
- Up to 19.5 GPM of unrestricted flow
- 199,000 BTU's Max Input
- Great for heavy residential or light commercial up to 5 simultaneous applications
- 316L Stainless Steel internal piping connections
- Available M Option Factory Installed Multi Control Unit module for up to 8 x GU195M in network for heavy commercial
| Attachment | Size |
|---|---|
| Download the spec sheet for details | 1.82 MB |