The Bock 33ELB is a compact, high‑performance lowboy oil‑fired water heater engineered for homes with limited installation height but demanding hot‑water needs. Its 33‑gallon capacity and low‑profile design make it ideal for basements, crawlspaces, and tight mechanical rooms where standard water heaters cannot fit. Built with Bock’s signature cobalt‑enriched glass‑lined tank, the 33ELB delivers exceptional corrosion resistance and long‑term durability, ensuring reliable performance year after year.
This model includes a factory‑installed 0.75 GPH oil burner, providing fast, efficient heat transfer and strong recovery rates that outperform typical residential units. The burner’s consistent ignition and stable combustion make the 33ELB a dependable choice for households that require steady hot‑water availability throughout the day. Operating on 120V/1PH/60HZ, the unit integrates easily into standard residential electrical service.
The 33ELB’s heavy insulation minimizes standby heat loss, helping maintain stable tank temperatures and improving overall energy efficiency. Its rugged steel jacket, clean internal layout, and accessible components make routine service straightforward for technicians, reducing maintenance time and cost.
Designed for both standalone use and integration into hydronic heating systems, the Bock 33ELB offers the reliability, longevity, and performance that contractors and homeowners expect from Bock. With its corrosion‑resistant tank, efficient burner, and compact lowboy footprint, this model is a premium solution for efficient, oil‑fired residential hot‑water production in space‑restricted installations.
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.
Less Burner Configuration
Allows burner selection based on site requirements or installer preference.
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
