We will close at 1:00 PM on Wednesday, December 31, 2025 in observance of the New Year. We will reopen as usual on Monday, January 5, 2026.
Please send us a message at sales@onco-tx.com and we will get back to you as soon as we can. We look forward to working with you soon!

Oslin Nation Co.: An HTS Company logo

For over 80 years, Lochinvar has led the industry in innovation and high-efficiency water heating. With high-efficiency boilers, water heaters, tanks, and a full range of system components designed for lasting efficiency and reliability.

Oslin Nation Co. represents Lochinvar across Texas, bringing you access to their full line of boilers, water heaters, tanks, and system solutions.

Browse Lochinvar Boilers, Water Heaters & Tanks

Find Lochinvar boilers, water heaters, tanks, and hydronic components with Oslin Nation Co. We carry the complete line to support efficient, reliable heating and hot water systems.

Condensing Boilers

Maximize energy savings with condensing boilers that deliver consistent heat and peak efficiency. Learn More»

Commercial Boilers

Durable commercial boilers engineered to handle heavy loads with consistent efficiency. Learn More»

Commercial Water Heaters

High-efficiency water heating that lowers energy costs and supports large commercial demand. Learn More»

Find a Product Solution

Find the Right Lochinvar Product Fast

Use Oslin Nation Co.’s Find a Product Tool to quickly connect with the right Lochinvar boilers, water heaters, or tanks. Narrow your options and get matched to the solutions that fit your project.

We’re Here To Help

Ready to put Lochinvar’s performance to work? Our sales team can answer questions, review options, and connect you with the right boilers or water heaters for your project.

Featured Products

Introducing Lochinvar FTXL Fire Tube Boiler, from Anywhere

Lochinvar FTXL Fire Tube Boiler features the next generation of Lochinar’s all-in-one SMART SYSTEM operating control with a re-designed multi-color...

Lochinvar Copper-Fin II Boiler

Copper-finned tube, non-condensing appliances are the foundation of Lochinvar’s success. In 1993, Lochinvar introduced the Copper-Fin II, the first horizontal...

Lochinvar Copper-Fin® Commercial Gas Boilers

High-Efficiency Commercial Gas Boiler that is Cost-Effective Lochinvar first introduced Copper-Fin® technology to the boiler industry some 50 years ago....

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Questions?

Need help with your project? Have questions about a product? We would love to help. Reach out to us so we can put our experience and knowledge to work for you.