Lochinvar EnergyRite ERN-501 100-Gallon Commercial Gas Water Heater
Model ERN-501
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Price as of May 2026
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Btu
500000
Venting
Atmospheric
Fuel Type
Natural Gas
Tank Type
Commercial
Energy Factor
0.81
Warranty Years
5
Lochinvar EnergyRite ERN-501 100-Gallon Commercial Gas Water Heater Review
The Lochinvar EnergyRite ERN-501 100-Gallon Commercial Gas Water Heater is a larger commercial gas tank in Lochinvar's EnergyRite line. 500K BTU input for very high recovery rates.
Specs: 100 gallons stored, 500,000 BTU input, UEF 0.62, 480-gallon FHR, 3-year commercial tank warranty. Power-vent PVC venting.
The 500K BTU burner produces extreme recovery rates appropriate for substantial commercial applications: restaurants, large salon/spas, multi-family residential, industrial process. Far exceeds typical residential needs.
About $5,500 unit, $9,000-$12,000 installed depending on commercial gas line and venting work. Right buyer: commercial application with continuous high-demand cycles.
Full Specifications
Brand
Lochinvar
Model Number
ERN-501
Btu
500000
Venting
Atmospheric
Fuel Type
Natural Gas
Tank Type
Commercial
Energy Factor
0.81
Warranty Years
5
Capacity Gallons
100
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