Lochinvar EnergyRite ERN-852 100-Gallon High-Recovery Commercial Gas Water Heater

Model ERN-852
4.2/5 from 40 ratings
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Price as of May 2026
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Btu
850000
Venting
Atmospheric
Fuel Type
Natural Gas
Tank Type
Commercial
Energy Factor
0.81
Warranty Years
5

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.

Full Specifications

Brand
Lochinvar
Model Number
ERN-852
Btu
850000
Venting
Atmospheric
Fuel Type
Natural Gas
Tank Type
Commercial
Energy Factor
0.81
Warranty Years
5
Capacity Gallons
100

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