Lochinvar Crest
Model Number: CRN
Entry-level Lochinvar condensing boiler with fire-tube reliability.
Technical Specifications
Prices depend on sizing, venting and piping in your home, so we quote every installation.
Sizing: the right size comes from a room-by-room heat-loss calculation, not the size of the old boiler or a rule of thumb. Oversized boilers short-cycle and waste fuel; steam systems are sized to the connected radiation instead. See how we approach boiler installation.
Home-Specific Operating Cost Review
No guaranteed annual savings or payback period
Historical Use
Fuel consumption and weather
Current Rates
Utility and delivered-fuel prices
System Design
Load, piping, controls, and temperatures
Full Specifications
- Model Number
- CRN
- Efficiency (AFUE)
- 95%
- Boiler Type
- Condensing Boiler
- BTU Input Range
- 55k - 199k BTU
- In Production
- Yes
- Parts Warranty
- 5 years
- Heat Exchanger Warranty
- 10 years
Specification source not yet linked — figures are being verified against manufacturer data.
Ideal For
Homes wanting commercial quality at more accessible pricing
Expert Review: Lochinvar Crest
The Lochinvar Crest is the entry point into commercial-quality residential heating. At 95% AFUE with compact wall-mount installation, this fire-tube condensing boiler brings Lochinvar reliability to typical Nassau County homes. The stainless steel heat exchanger and Energy Star certification deliver efficiency and value.
Fire-tube technology provides the same design philosophy that drives Lochinvar's commercial success—proven durability and efficient heat transfer. The compact footprint suits finished basements and tight utility spaces.
With output up to 199,000 BTU, the Crest handles 2,000-3,500 square foot homes with multiple zones. PSEG Long Island rebates apply, making the upgrade from older cast iron boilers financially attractive.
The 10-year heat exchanger warranty provides solid coverage, though shorter than the 15-year warranty on higher-tier Lochinvar models.
Our recommendation: The Crest is the smart choice for homeowners who want Lochinvar's commercial DNA without the premium pricing. Ideal for mid-size homes where quality matters but flagship features aren't essential.
Key Features & Technology
Stainless steel exchanger
Compact wall-mount
Simple installation
Energy Star rated
Fire-tube technology
Advantages
- Entry point into Lochinvar quality
- Wall-mount saves space
- Commercial DNA at residential pricing
- Good value proposition
Considerations
- Less advanced controls than Knight
- Smaller capacity range
- Still premium vs economy brands
Sizing & Installation Notes
Condensing boilers like the Crest reach their rated efficiency only when return water runs cool enough to condense flue gases. We check your radiation and design water temperatures so the unit actually condenses in your home, not just on the spec sheet.
Every Lochinvar installation starts with a free in-home assessment covering the heat-loss calculation, venting and chimney condition, gas or oil supply sizing, and permit requirements for your town. Learn more about our boiler installation process, or see current rebate and incentive programs that may apply.
Warranty & Protection
Parts Warranty
5 years
Heat Exchanger
10 years
Our Guarantee
100% Satisfaction
All Lochinvar boiler installations by Home+ Air & Heat include our 1-year workmanship warranty, covering labor and any installation-related issues.
Compare the Lochinvar Lineup
| Model | Efficiency | BTU Range | Fuel | Heat Exchanger Warranty |
|---|---|---|---|---|
| Crest (this model) | 95% AFUE | 55k - 199k BTU | — | 10 years |
| Knight WHN | 96% AFUE | 55k - 399k BTU | — | 15 years |
| Noble NKC | 95% AFUE | 55k - 285k BTU | — | 15 years |
| Knight XL | 96.2% AFUE | 80k - 800k BTU | natural gas/propane | 12-year limited heat exchanger |
| Knight Fire Tube | 95% AFUE | 11k - 285k BTU | natural gas/propane | 12-year limited heat exchanger |
| Noble Combi | 95% AFUE | 16k - 199k BTU | natural gas/propane | 12-year limited heat exchanger |
See the full Lochinvar brand page for lineup context, or browse the Best Condensing Boilers guide to compare across brands.
Frequently Asked Questions
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