Lochinvar Crest 750000 BTU Condensing Boiler
Lochinvar Crest 750000 BTU Condensing Boiler
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Technical Specifications Matrix:
| Manufacturer Part Number (MPN) | FBN0751 |
| Energy / Fuel Source | Natural Gas (NG) Baseline Configuration |
| Gross Gas Input Rating | 750,000 BTU/hr |
| AHRI Certified Thermal Efficiency | 96.2% |
| Burner Modulation Turndown | 15:1 Turndown Ratio (down to 50,000 BTU/hr input) |
| Internal Vessel Water Capacity | 73 Gallons |
| Maximum Flow Rate Capacity | 350 GPM |
| Maximum Working Pressure | 160 psi (ASME Certified Heat Exchanger Block) |
| Electrical Power Input | 120V / 1-Phase / 60Hz | 5.0 Full-Load Amps |
| Physical Dimensions | 30" W x 57-5/8" D x 78" H |
| Air Inlet / Vent Connection Sizes | 6" Size (Compatible with PVC, CPVC, PP, and SS) |
| Product Shipping Weight | 1,560.00 lbs |
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The Lochinvar Crest® FBN0751 is a commercial floor-mount condensing gas boiler delivering a precise input of 750,000 BTU/hr and a thermal efficiency rating of up to 96.2%. Engineered to revolutionize modern hydronic heating plant design, the Crest series utilizes a highly advanced, single-pass Wave Fire-Tube heat exchanger construction. This design achieves exceptional heat transfer while keeping waterside pressure drops low, allowing easy integration into variable primary or full-flow configurations without complex primary/secondary piping.
Equipped with a top-mounted micro-metal fiber burner and a negative regulation combustion framework, the boiler delivers smooth, quiet operation with an ultra-wide 15:1 modulation turndown ratio. It runs reliably even under drops in local utility gas pressures down to 4 inches water column. System diagnostics are managed through Lochinvar's signature SMART TOUCH™ touchscreen dashboard featuring CON·X·US® remote connectivity, letting facility teams monitor operation or adjust parameters from a remote location.
