The Leader in Pumps, Boilers, Hydronic Specialties, and System Solutions for both HVAC and Plumbing Applications

We have been providing dedicated service to the great state of Texas for over 75 years. No project is too large and no problem is too small for our experienced and trustworthy team. With four locations across the state of Texas, we are always within reach. With locations in Dallas-Fort Worth, Houston, San Antonio, and Austin, we have vast solutions experience with all aspects of hydronic equipment ranging from pumps to boilers, and piping to tanks. When you need a partner in the commercial plumbing and HVAC system solutions industry, look no further than Oslin Nation Co.

Since 1943, Oslin Nation Co. has been providing high quality industrial equipment for a wide range of commercial HVAC and plumbing applications. Our team has the expertise to partner with you and to be the subject matter experts in all aspects of your project. Nothing is out of our comfort zone, from office buildings, hotels, stadiums, airports, and more. If you are designing a new building, we will partner with you to ensure that you get the outcome that you need. When components malfunction or degrade, we are there to get you replacement parts and systems so that you are back up and running with minimal downtime. Additionally, we can procure custom equipment so that obsolescence is a problem of the past for you and your business.

What We Do

We are a manufacturers representative for some of the most trusted names in the hydronics and plumbing industries including Bell and Gossett, Lochinvar, Weil, Itron, and many more. New construction, retrofit, upgrade, replacement, and wholesale are all part of who we are. We pride ourselves on making sure your project is done right the first time, every time. Whether you are looking for specific piece of equipment, or need to understand solutions available, then look no further than Oslin Nation Co.!

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System Knowledge

Our history includes arenas, apartment buildings, stadiums, hotels, offices, airports, and more. We know how hydronic systems work, when you work with Oslin Nation you can count on us to be your system experts.

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Types of Products


1904, 2021

ONCO adds Aermec to Product Line

Aermec adds fan coils, chillers, and heat pumps to Oslin's product line Oslin Nation Company is pleased to announce that ...

2003, 2021

Itron B42 Series Regulator

Itron is a manufacturer of gas regulators and meters. In today’s resource-hungry world — where infrastructure modernization, new CO2-neutral energy ...