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Commercial facilities rely on steady hot water to keep daily operations running smoothly. When an aging or undersized boiler can’t meet demand, it causes disruptions that impact staff, customers, and productivity. A properly installed commercial boiler helps your building handle peak usage without interruption.
Tennessee Standard Plumbing installs commercial boiler systems for Knoxville businesses that need reliable hot water. Our licensed team evaluates your building’s needs, recommends the right boiler size, and completes the installation to meet safety and performance standards. We serve restaurants, medical offices, retail centers, production facilities, schools, and multi-tenant buildings with varying hot water requirements.
If your current system is struggling or nearing the end of its lifespan, we can help you upgrade to a more dependable boiler. Contact us today!




Commercial boilers have technical and safety requirements that must be handled correctly during installation. These systems manage high heating loads, depend on proper fuel and venting setup, and must run safely for long periods. Incorrect installation can lower performance, increase energy use, or create safety risks.
Professional installation ensures the boiler is properly sized, correctly vented, and calibrated for consistent temperature control. Licensed commercial plumbers understand the circulation, combustion, and control components that support safe and efficient operation, helping Knoxville businesses maintain reliable hot water and manage long-term operating costs.

A commercial boiler nearing the end of its life will often show measurable performance issues. You may need an installation evaluation if your building experiences:








Identifying these issues early allows you to replace the system before unexpected failure disrupts operations.

A professionally installed boiler provides advantages that support your building’s daily operations and long-term budget:
These benefits help your facility maintain dependable service and predictable operating costs.


“ I feel comfortable calling and sending Tennessee Standard in my house to fix a problem. He respected my home just like I do. To us, Tennessee Standard is the gold standard.”
Most commercial boiler installations take one to three days, depending on the size of the system, the condition of the existing equipment, and any required upgrades to venting or gas lines. Larger or more complex commercial spaces may require additional time for testing and configuration.
Light commercial boilers with the proper capacity, fuel type, and recovery rate are ideal for high-demand environments. The best option depends on your building’s hot water volume, existing infrastructure, and energy requirements. A licensed commercial plumber can assess these factors and recommend the right system.
Yes. A correctly sized and professionally installed boiler runs more efficiently and avoids the energy waste common with outdated or improperly configured systems. Modern boilers also offer improved combustion control and insulation, which can further lower long-term utility costs.
Routine maintenance is essential for safe, consistent operation. Annual inspections, combustion checks, flushing, and component testing help prevent failures, extend system lifespan, and maintain efficiency. Most manufacturers require regular maintenance to keep warranties valid. We also service residential water heaters on a similar maintenance schedule.
Boiler sizing is based on hot water demand, fixture count, flow rates, building size, and the type of operations performed. Proper sizing ensures the system can meet daily needs without overspending on energy or stressing the equipment.
We install a variety of commercial boilers, including high-efficiency condensing boilers, standard hot-water boilers, and systems designed for space heating and hot water. During your consultation, we’ll recommend options based on your building’s size, demand, and fuel source.
There may be periods when heat or hot water is temporarily off while we disconnect the old system and commission the new one. We plan this downtime as tightly as possible, often scheduling critical steps during lower-usage hours, and we’ll let you know what to expect in advance.
Yes. We install the boiler and connect it to your existing or new piping, pumps, and manifolds as needed. We also address air separators, expansion tanks, and related accessories to ensure the system runs safely and efficiently.
Financing may be available for qualifying commercial projects through our partner, GoodLeap. Because programs and eligibility can change, the best way to get accurate, current information is to call our office or check our Financing page.
Yes. Our installations include warranties on both parts and labor. We’ll review the specific warranty terms for your boiler model and installation so you know exactly what’s covered and for how long.
You can schedule a consultation by calling our office at (865) 352-9003 or filling out our online contact form. Our team is available Monday through Friday, from 7:30 AM to 5:00 PM, and we’ll work with you to find a convenient time to evaluate your building and discuss boiler options.