The Bock 72ELB is a high‑capacity, oil‑fired water heater engineered for homes that require strong recovery rates, long‑term durability, and dependable hot‑water performance. With its 67‑gallon storage capacity, this model is built to support larger households, multi‑bathroom homes, or applications with sustained hot‑water demand. At the core of the 72ELB is Bock’s proven cobalt‑enriched glass‑lined tank, designed to deliver superior corrosion resistance and extend service life even under heavy daily use.
This model includes a factory‑installed oil burner, delivering consistent ignition, efficient combustion, and reliable heat transfer. The burner’s performance pairs with Bock’s high‑efficiency heat exchanger to maximize BTU output while minimizing fuel consumption, helping homeowners maintain strong hot‑water availability without excessive operating cost. The unit operates on 120V/1PH/60HZ, ensuring straightforward electrical compatibility with standard residential service.
Heavy insulation reduces standby heat loss, maintaining stable tank temperatures and improving overall system efficiency. The rugged steel jacket and clean internal layout support long‑term reliability while making routine service simple for technicians. Every component is engineered for accessibility, durability, and consistent performance.
Whether installed as a primary water heater or integrated into a hydronic heating system, the Bock 72ELB stands out as a premium, high‑capacity solution. Its combination of a corrosion‑resistant tank, powerful burner, and exceptional recovery rate makes it a trusted choice for demanding residential hot‑water applications.
Key Features
67‑Gallon Residential Oil‑Fired Water Heater
Ideal for large homes or high‑demand applications.
Cobalt‑Enriched Glass‑Lined Tank
Enhanced corrosion protection for long tank life.
Less Burner Configuration
Allows burner selection based on application or installer preference.
120V / 1PH / 60Hz Electrical Requirement
Standard residential power compatibility.
High‑Recovery Performance
Delivers strong hot‑water output for continuous use.
Durable Steel Jacket & Heavy Insulation
Reduces standby heat loss and supports energy‑efficient operation.
Service‑Friendly Layout
Accessible components simplify installation and maintenance.
Ideal For
Large households or installations requiring a durable, high‑capacity oil‑fired water heater with burner flexibility and long‑term reliability.
We service and install all types of HVAC heating and cooling equipment throughout Long Island, including (but not limited to) this coverage area:
Nassau County: Oyster Bay, Hempstead, North Hempstead, Glen Cove, Long Beach, Freeport, Valley Stream, Garden City, Great Neck, Mineola, Hicksville, Levittown, Massapequa, Bethpage, Plainview, Syosset, Jericho, Westbury, Rockville Centre, Farmingdale
Suffolk County: Huntington, Babylon, Islip, Smithtown, Brookhaven, Riverhead, Shelter Island, Southold, Southampton, East Hampton, Commack, Deer Park, Lindenhurst, Bay Shore, Brentwood, Central Islip, Hauppauge, Centereach, Selden, Medford, Patchogue, Shirley
Contact us today at (631) 779-3196
