Boiler Report – Lochinvar: Not Your Ordinary Boiler Company

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In an effort to bring you the latest from boiler manufacturers, Mechanical Hub presents its boiler spotlight on Lochinvar, LLC.



Lochinvar, LLC
300 Maddox Simpson Pkwy
Lebanon, TN 37090

Lochinvar’s heritage of excellence dates back to 1939, when the company was founded. The introduction of the Power-Fin product line in 1986 revolutionized the industry and helped establish Lochinvar as the leader in advanced hydronics and water heating technology.  Through the years, Lochinvar’s continued investment in research and development has produced many of the industry’s most innovative products and technology. Today, with company headquarters in Lebanon, Tennessee, Lochinvar is the leading manufacturer of energy-efficient water heaters, boilers, pool heaters and commercial solar thermal systems. 

New Products
— The CREST® Condensing Boiler is now available with inputs up to five million Btu/hr. Orders are currently being accepted for the new five million Btu/hr (FBN5000) and four million Btu/hr (FBN4000) models. In addition, Lochinvar has also expanded the line to include a dual fuel gas train and updated select models to offer lower de-rate numbers for high altitude applications.

— Another innovation introduced in 2012 is the ARMOR X2™ Commercial Condensing Water Heater (pictured below). ARMOR X2 combines stainless steel heat exchanger technology with modulating/condensing combustion to deliver thermal efficiencies as high as 96 percent. Boasting a turndown ratio of 10:1 and available in models with 1.0, 1.3 and 1.5 million Btu/hr inputs, ARMOR X2 offers an efficient, advanced solution for a wide range of commercial applications. 

— Lochinvar also recently introduced two new thermal storage tanks: Thermal-Stor™ and Strato-Therm+.

The new Thermal-Stor Stratified Solar Thermal Storage Tank is designed to offer an ideal solution for solar thermal and ground source applications with an emphasis on hydronic space heating. The multi-functional Thermal-Stor operates as a storage tank and hydronic buffer tank while solely occupying the space of a single unit.

Strato-Therm+ offers the functionality of a solar thermal storage tank and hydronic buffer tank, as well an indirect water heater. Equipped with a solar heat exchanger connected to the storage vessel and a corrugated stainless steel coil within the tank, Strato-Therm+ maximizes heat transfer in a solar thermal system and increases collector performance. 

Both Strato-Therm+ and Thermal-Stor are available in nine models ranging from 125 to 900 gallon capacities. 

Lochinvar Training Program
The annual education program, Lochinvar University, is a trusted resource for industry professionals seeking expert information on cutting-edge Lochinvar products and technology, with courses designed to arm participants with the knowledge they need to size, select, install and service Lochinvar’s extensive line of high-efficiency water heaters and boilers. All Lochinvar University courses take place at company headquarters near Nashville, utilizing Lochinvar’s state-of-the-art training facility.  For each participant, Lochinvar provides accommodations for a two-night stay in Nashville based on double occupancy, as well as all meals beginning the morning of the first school day.

Lochinvar University offers various product-specific Service Schools, covering a wide range of Lochinvar’s commercial water heater and boiler models. In addition, Lochinvar offers a free, two-day Sizing and Application School for industry professionals involved in the selection, sizing and/or sale of water heaters. 

Incentive Programs?
Lochinvar's VIP Contractor Program is in full-swing. Lochinvar restructured the program this year to offer a simplified approach to rewarding participating contractors for their installations of Lochinvar’s residential boilers. 

Among the exciting updates to the program is the implementation of a cash prize for each boiler installation. With every registration of a high-efficiency KNIGHT®, Solution™ or KNIGHT XL® Boiler, the contractor is sent a $25 Visa® rewards card. Contractors also receive a $10 gift card for every registered Squire Indirect Water Heater.  In addition to the cash bonus, each registration gets entered into a drawing for Lochinvar’s famous Nashville Experience, the ultimate reward for VIP Contractors. This year’s all-expenses-paid trip for two includes tickets to the world’s largest country music festival in June 2013.

Contractors can also compete to win one of seven spots for The Nashville Experience through the VIP Installation Showcase, which has found a new home on Facebook this year. Easily accessible on Lochinvar’s Facebook page, the VIP Installation Showcase is now more interactive than ever.  From October through April, approved contractors can upload a photo and brief description of an installation of any qualified boiler directly to the contest interface on Facebook (  Once an entry has been submitted, it is featured in a gallery of submissions where Facebook users can vote for their favorite installation. The top three entries with the most votes each month are selected as finalists, and a panel of Lochinvar judges chooses the monthly winner. 

On top of the many rewards that VIP Contractors can earn as part of the program, participants also have access to a wealth of tools and training opportunities. All of these resources are designed to help VIPs increase their sales while decreasing their customers’ energy bills.

A dynamic new VIP interface has also been introduced at Contractors can quickly find all of the information they need on the new website, and registering as a new VIP has never been easier.

Manufacturing Logistics
Many of Lochinvar’s products are manufactured at company headquarters in Lebanon, Tennessee.  Our nearly 100,000-square-foot headquarters warehouse serves as our distribution hub for several surrounding states. Lochinvar also have strategically located warehouses in Chicago, Detroit, Tampa, Orlando, Pompano Beach, Dallas and Phoenix.  A facility in Banbury, England services orders in the United Kingdom. 

Online Resources
At, users can easily access information for each product, including wiring diagrams, piping diagrams, literature, I&O manual, service manual, user manual, pump recommendations, replacement parts list, product summary, warranty information, plan view drawings, typical spec, technical service, etc.

Lochinvar will be releasing our latest online tool in January — an online water heater sizing calculator, which uses job specific information to properly size the system. Information used in the sizing includes variables such as job type, number of plumbing fixtures, service water temperatures, ground water temperature, altitude just to name a few. This information is then plugged into industry proven formulas to determine equipment sizing and selection for the project.

In addition, Lochinvar has numerous videos on our YouTube channel, as well as frequent updates and photos on our Facebook and Twitter pages.

Finally, Lochinvar’s online learning platform, which will be hosted at, will be released in 2013. Here, students such as contractors, distributors and engineers will be able to attend online versions of our popular, industry-renowned Lochinvar University curriculum. More details will be released about its online learning management platform in the spring.

Commonly Asked Contractor Questions

1. Is Lochinvar a foreign company?

Lochinvar is actually the name of a knight found in Sir Walter Scott’s poem titled, Lochinvar. Many people think that with a Scottish name like Lochinvar, we must be a foreign entity. However, Lochinvar is proud to have roots in the Detroit, MI and Nashville, TN areas. We are proud to be an American manufacturer with its world headquarters located in Lebanon, TN, USA.

2. What kind of products do you make?

Many contractors know Lochinvar for one or two products within a specific product segment. The most common reaction that Lochinvar gets is that of surprise when visitors to its world headquarters see the breadth of its product line. Lochinvar manufactures the most complete offering of residential and commercial water heaters, boilers, swimming pool heaters and solar thermal heating systems. Its water heaters range from 2-gallon under the sink models to multi-million Btu/multi-thousand gallon water heaters used in commercial applications. Residential to commercial hydronic heating boilers and pool heaters are our strength as well. Finally, Lochinvar also has its customers covered with commercial solar thermal systems. With a product offering this full, nearly every project that involves heating water could also involve Lochinvar. 


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