The Bock 33ELB is a compact lowboy residential oil-fired water heater designed for installations with limited vertical clearance. This oil-fired water heater's 33‑gallon storage capacity and 0.75 GPH firing rate deliver strong recovery performance, making it ideal for tight mechanical rooms, crawlspaces, and low‑height basements.
Built for longevity, the 33ELB features a cobalt‑enriched glass‑lined tank that provides superior corrosion resistance and extended service life. With standard 120V / 1PH / 60Hz electrical requirements, it integrates easily into most residential setups.
Key Features
33‑Gallon Lowboy Residential Oil‑Fired Water Heater
Space‑saving design ideal for low‑clearance installations.
0.75 GPH Firing Rate
Efficient oil consumption with reliable hot‑water recovery.
Cobalt‑Enriched Glass‑Lined Tank
Enhanced corrosion protection for long tank life.
With Burner Configuration
120V / 1PH / 60Hz Electrical Requirement
Standard residential power compatibility.
Durable Steel Jacket & Heavy Insulation
Reduces standby heat loss and supports efficient operation.
Service‑Friendly Layout
Accessible components simplify installation and maintenance.
Ideal For
Homes needing a compact, low‑profile oil‑fired water heater with dependable performance and burner flexibility.
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
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