Lochinvar EnergyRite ERN-852 100-Gallon High-Recovery Commercial Gas Water Heater
Lochinvar EnergyRite ERN-852 100-Gallon High-Recovery Commercial Gas Water Heater Review
The Lochinvar EnergyRite ERN-852 100-Gallon High-Recovery Commercial Gas Water Heater is Lochinvar's highest-output commercial gas tank. 852K BTU input for extreme commercial recovery rates.
Specs: 100 gallons stored, 852,000 BTU input, UEF 0.61, 820-gallon FHR, 3-year commercial tank warranty. Power-vent PVC venting.
The 852K BTU burner is among the highest outputs in commercial residential-format water heaters. Serves substantial commercial applications with continuous extreme demand: large hotels, hospitals, large food service, industrial process.
About $9,500 unit, $14,500-$19,000 installed depending on commercial requirements. Right buyer: large commercial application requiring extreme-recovery gas water heater in 100-gallon-class form factor.
- Natural gas combustion — faster recovery than electric resistance at comparable tank size
- Large 100-gallon reserve — comfortably serves 5+ person households in peak-use periods
- High 850K BTU input — rapid recovery for large-volume commercial-residential applications
- 5-year warranty — below the 8–12 year average for premium models in this class
- Atmospheric venting requires vertical B-vent — less routing flexibility than power-vent or condensing alternatives