Lochinvar Tankless Water Heaters
Explore Lochinvar’s technology, innovation and top-rated collections
Introduction
- Brand History
- Lochinvar has been a leading manufacturer of high-efficiency water heating and space heating solutions since 1919, with over 100 years of experience in the industry. The company has built a strong reputation for commercial and residential water heating systems, particularly known for their innovative boiler and water heater technologies.
- Reputation
- Lochinvar is highly regarded in the HVAC industry for producing reliable, efficient, and durable water heating equipment. They are particularly respected by contractors and engineers for their commercial-grade quality and comprehensive technical support.
- Specialization
- Lochinvar specializes in high-efficiency condensing tankless water heaters, commercial boilers, and integrated heating systems. They focus heavily on energy-efficient solutions for both residential and commercial applications, with particular strength in larger capacity units.
Technologies & Innovation
- Proprietary Features
- Lochinvar tankless units feature SMART SYSTEM operating controls, stainless steel heat exchangers, and advanced modulation technology. Their units include integrated recirculation pumps, advanced diagnostics, and self-calibrating systems for optimal performance.
- Energy Efficiency
- Lochinvar tankless water heaters achieve up to 96% thermal efficiency with condensing technology. They feature precise modulation from 15% to 100% capacity, ensuring optimal fuel usage and reduced energy waste across varying demand levels.
- Smart Controls
- SMART SYSTEM controls provide advanced diagnostics, remote monitoring capabilities, and smartphone connectivity through their mobile app. The system includes predictive maintenance alerts, performance optimization, and detailed energy usage tracking.
- Certifications
- Lochinvar units are ENERGY STAR certified and meet AHRI standards. They comply with ultra-low NOx emissions requirements and are certified for use in all major North American markets with appropriate safety and efficiency certifications.
Best Use Cases
- Residential Use
- Ideal for larger homes with high hot water demand, multi-family residences, and luxury applications where consistent performance is critical. Well-suited for homes requiring multiple simultaneous hot water uses and those prioritizing long-term reliability.
- Commercial Use
- Excellent for restaurants, hotels, healthcare facilities, schools, and office buildings. Particularly strong in applications requiring high-capacity, continuous hot water supply with minimal maintenance requirements and maximum uptime.
- Climate Compatibility
- Designed to perform reliably in various climates with freeze protection and outdoor installation options. Units are engineered to maintain efficiency in cold weather conditions and include advanced venting systems for different installation environments.
- Installation Types
- Suitable for both indoor and outdoor installations with flexible venting options. Compatible with existing gas lines and can be installed in mechanical rooms, basements, or outdoor locations with appropriate weather protection.
Why Choose Lochinvar?
- Unique Selling Points
- Lochinvar offers commercial-grade reliability in residential applications, exceptional build quality with stainless steel components, and comprehensive technical support. Their units feature longer lifespan expectations and superior performance consistency compared to many competitors.
- Comparative Advantages
- Superior build quality and durability, extensive dealer network with professional installation support, and strong focus on larger capacity units. Lochinvar provides better commercial application support and has a proven track record in demanding environments.
- Warranty
- Lochinvar offers comprehensive warranty coverage including 12-15 years on heat exchangers for residential units and 5-10 years on parts. Commercial units receive tailored warranty packages, and the company provides strong warranty support through their dealer network.
Lochinvar Best Sellers
| Image | Product Name | SKU | List Price | Low Price | Reviews | Rating | Action |
|---|---|---|---|---|---|---|---|
![]() | EcoSmart Electric Tankless Water Heater Eco 11 | 7518328603500429114 | — | $189.99 | 452 | 4.2/5 | View Details |
![]() | A.O. Smith Signature Series Tankless Water Heater GT15-240-NI | 8278911865008573754 | — | $869.00 | 72 | 4/5 | View Details |
![]() | Rinnai RE180IN 180K BTU 8.5 GPM Natural Gas Tankless Water Heater | 3407974351206940498 | — | $1,212.40 | 36 | 4.4/5 | View Details |
![]() | Optimal 18KW Electric Tankless Water Heater Opti 18 | 6164037591825254086 | — | $629.00 | 26 | 4.8/5 | View Details |
![]() | Camplux 3.18 GPM Indoor Propane Tankless Water Heater with Wall Thimble | 12191904245852560582 | — | $365.49 | 13 | 4.4/5 | View Details |
![]() | Lochinvar Squire Indirect Water Heater SIT040 | 4192306647968024190 | — | $1,616.50 | 12 | 4/5 | View Details |
![]() | Lochinvar NKC110N 110000 BTU Noble Fire Tube Combi Boiler | 8848871129088220161 | — | $3,125.16 | 11 | 2.8/5 | View Details |
![]() | Optimal 12 Plus Smart WiFi App Control Electric Tankless Water Heater | 9042890301108621223 | — | $599.00 | 10 | 5/5 | View Details |
![]() | Optimal Smart Electric Tankless Water Heater Opti27 | 813747148736146180 | — | $729.00 | 9 | 4.9/5 | View Details |
![]() | Lochinvar WHB199N Knight Fire Tube | 7302294483785094838 | — | $6,402.13 | 4 | 4.8/5 | View Details |
![]() | Lochinvar NKC199N 199000 BTU Noble Fire Tube Combi Boiler | 3170123147373168526 | — | $3,703.50 | 3 | 4.7/5 | View Details |
![]() | Lochinvar CWN225PM-F9 Atmospheric Gas Water Heater | 15173605702679325305 | — | $3,996.89 | 1 | 5/5 | View Details |
![]() | Lochinvar CWN399PMF9 Commercial Natural Gas Water Heater | 3912218930364292156 | — | $5,161.75 | 1 | 5/5 | View Details |
![]() | Lochinvar CWN0315PM Commercial Natural Gas Water Heater | 17565454154680005137 | — | $4,585.46 | 1 | 5/5 | View Details |
![]() | Lochinvar CWN747PM Copper-Fin 745 Input MBtu Commercial Natural Gas Water Heater | 15446397638261556464 | — | $10,457.14 | 1 | 5/5 | View Details |
![]() | Lochinvar Copper-Fin Low NOx Heater ERN-252-A | 12511916202651587918 | — | $3,329.12 | 1 | 5/5 | View Details |
![]() | Lochinvar 199 MBH Indoor Condensing Propane Tankless Water Heater | 15308445856166831017 | — | $1,695.71 | /5 | View Details | |
![]() | Lochinvar Armor High Efficiency Water Heater AWN151PM | 13824311398131403456 | — | $7,353.00 | /5 | View Details | |
![]() | Lochinvar Water Heater 100208630 | 10811900097298690655 | — | $43.93 | /5 | View Details | |
![]() | Lochinvar AWH0400N-PM Armor 399 Input MBtu 99% AFUE - Commercial Natural Gas Condensing Water Heater - Direct Vent (Pump Supplied) | 17428573568785511886 | — | $16,201.00 | /5 | View Details | |
![]() | Lochinvar AWH0400NPM 399,000 BTU Armor Condensing Commercial Water Heater (Natural Gas) | SupplyHouse.com | 13942671191979014580 | — | $15,567.80 | /5 | View Details | |
![]() | Residential Lochinvar Powerful Heating Efficient Performance | 577741921075705728 | — | $1,265.59 | /5 | View Details | |
![]() | Lochinvar 201k Btu 3" Flue Integrated Pump | 17086782709159100093 | — | $9,081.21 | /5 | View Details | |
![]() | AWN286PM Lochinvar Asme Armor Condensing Water Heater 285,000BTU 4IN Pvc Flue, Up to 98% Efficient 100133752 | 3004120687070007597 | — | $11,185.97 | /5 | View Details | |
![]() | Lochinvar Residential PVN04040 | 16883200646293313513 | — | $2,629.46 | /5 | View Details | |
![]() | Lochinvar CWN270PM-F9 Atmospheric Gas Water Heater | 8035981409990067221 | — | $4,266.06 | /5 | View Details | |
![]() | Lochinvar Residential JEA040KD | 16924221937402052113 | — | $1,178.92 | /5 | View Details | |
![]() | AWN201PM Lochinvar Armor Condensing Water Heater 201,000 Btu 3IN Flue Pump Mounted 100352805 | 6270819467075377110 | — | $9,634.14 | /5 | View Details | |
![]() | Lochinvar LTCPA80 | 2778010094968258888 | — | $2,015.02 | /5 | View Details | |
![]() | Lochinvar Solution CBN399 Copper Fin Water Boiler | 16137908883149982124 | — | $6,104.70 | /5 | View Details | |
![]() | Lochinvar & A.O. Smith GCRL-40 Short Natural Gas Water Heater | 18264717733900772137 | — | $1,354.39 | /5 | View Details | |
![]() | Lochinvar Water Heater 100304186 | 17981020333741284814 | — | $52.29 | /5 | View Details | |
![]() | Lochinvar Light Duty Commercial Water Heater | 17474918158609512336 | — | $4,265.49 | /5 | View Details | |
![]() | Lochinvar CWN1797PM Copper-Fin 1795 Input MBtu Commercial Natural Gas Water Heater - 5 Year Warranty | 1836749410127370837 | — | $17,905.78 | /5 | View Details | |
![]() | Lochinvar Water Heater 100143218 | 6640476459143828207 | — | $4,769.88 | /5 | View Details | |
![]() | Les-40B DJK Lochinvar 40 Gallon Short Electric Water Heater | 16985211132074680395 | — | $1,058.68 | /5 | View Details | |
![]() | Lochinvar Water Heater 100278107 | 3983622422738639393 | — | $43.93 | /5 | View Details | |
![]() | Lochinvar Residential LTL07575 | 4876720045188191867 | — | $2,462.25 | /5 | View Details | |
![]() | Lochinvar 100 Gallon Commercial Water Heater CGN200100 | 12775234000158479070 | — | $7,759.32 | /5 | View Details | |
![]() | LOCHINVAR ARMOR CONDENSING WATER HEATER | 6876930245556616177 | — | $8,813.74 | /5 | View Details |
Lochinvar Collections
EZ Series
Designed for fast and easy tankless upgrades, featuring top-mounted connections that simplify replacement of traditional tank water heaters.
Released: 2019-05-15
Key Features
- High-efficiency condensing (96% UEF)
- 25-year heat exchanger warranty
NRCR Series
Flagship recirculation line with built-in pump providing instant hot water to every fixture.
Released: 2020-11-01
Key Features
- Dual stainless heat exchangers
- Wi-Fi compatibility
- Intelligent recirculation
NRC Series
Dependable condensing units offering high output and excellent thermal efficiency, up to 9.8 GPM.
Released: 2018-08-20
Key Features
- Compact to heavy-duty models
- Long-lasting dual exchanger
ecoTOUGH Series
Eco-friendly line meeting stricter emissions and efficiency standards, ideal for green installs.
Released: 2021-03-10
Key Features
- Low NOx emissions
- ENERGY STAR certified
ProTOUGH Series
Built for contractors with rugged commercial-grade components and extended warranties.
Released: 2022-01-05
Key Features
- Commercial-grade construction
- Extended warranty options
ValueSolutions Series
Budget-friendly, non-condensing models offering reliable performance without premium price.
Released: 2017-06-12
Key Features
- Lower upfront cost
- Proven Noritz quality
NCC Series
Commercial cascade lineup handling up to 199,900 BTU for large-scale hot water demands.
Released: 2019-09-30
Key Features
- Cascadable for higher capacity
- Robust commercial output
NRCB Series
Combination boiler units delivering both space heating and domestic hot water in one compact package.
Released: 2020-07-22
Key Features
- Space heating + DHW
- High efficiency condensing







































