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CR-37 (dual) ROC 335298
Since 1979
Commercial Water Heater Installation & Repair in Phoenix, AZ
At Tankless Pros AZ, we specialize in commercial water heater installation and repair using cutting-edge systems from top manufacturers such as Navien, Rinnai, and Noritz. Whether you operate a hotel, restaurant, hospital, apartment complex, or industrial facility, we understand that dependable hot water is vital to your operations. Our team brings unmatched expertise, timely response, and long-lasting solutions to ensure your business never runs out of hot water.
Why Choose Commercial Tankless?
Commercial tankless water heaters deliver continuous hot water on demand, offering efficiency, space savings, and scalability. You avoid the limitations of traditional storage tanks, such as recovery time, standby heat loss, and capacity constraints. In commercial settings where demand fluctuates, tankless systems scale more effectively and help lower operating costs. With proper commercial water heater installation, you gain exceptional performance, reduced energy bills, and a longer equipment lifespan.
Our Commercial Water Heater Installation Process
Each commercial installation begins with a site assessment to measure peak hot water demand, fuel source logistics, venting requirements, plumbing layout, and local code constraints. We design a system tailored to your facility’s needs, whether it calls for a single large unit or a modular array of smaller units. During installation, we handle all plumbing, gas piping, venting, system integration, controls, safety devices, and commissioning. After installation, we test, balance, and validate that your system performs to spec. Proper installation is the foundation for long-term reliability and energy efficiency.
Commercial Water Heater Repair and Maintenance Services
Even the best equipment requires attention. We provide comprehensive commercial water heater repair services, such as troubleshooting leaks, ignition failures, flow sensor issues, scale build-up, control board diagnostics, and more. Our preventive maintenance service is designed to catch potential issues early, ensuring uninterrupted operation. With a maintenance contract, our certified technicians will periodically inspect, descale, test safety features, and recalibrate your system, keeping it operating at optimal levels.
Navien Commercial Tankless Systems
Navien is recognized in the industry for its high-efficiency condensing commercial tankless systems. Their units deliver advanced combustion efficiency, smart controls, and modular stackability. Navien systems are ideal when you need redundancy for high-demand applications. We are highly experienced in commercial water heater installation and repair for Navien units, including sizing multiple modules, integrating remote diagnostics, and building scalable hot water systems. Should any component fail, such as vent assemblies, heat exchangers, sensors, or control modules, our team is equipped to handle prompt commercial water heater repair.
We integrate Navien’s NPN-SERIES or NFC-SERIES commercial condensing tankless units for larger capacity needs, relying on their robust controls and performance. During a replacement or retrofit, we evaluate whether existing piping, venting, or electrical infrastructure must be upgraded. Our installation ensures compliance with local code and manufacturer guidelines, so your system remains eligible for warranty support.
Rinnai Commercial Tankless Solutions
Rinnai’s commercial tankless offerings are known for rugged reliability in high-demand environments. Their lineup includes models engineered for heavy-duty use in hospitality, healthcare, multi-family dwellings, and institutional facilities. Rinnai units feature sophisticated control logic, remote monitoring options, and compatibility with building management systems (BMS).
We support full commercial water heater installation and repair services for Rinnai commercial tankless systems. From initial system design and piping layout to commissioning and diagnostics, our technicians are factory-trained and experienced. In repair scenarios, we address issues such as burner malfunctions, sensor errors, scale accumulation, flow module replacement, or electronic board repairs. We also guide clients on preventive maintenance best practices to extend service life.
Noritz Commercial Tankless Technology
Noritz is another strong choice for commercial tankless applications, offering flexible modular designs, space-efficient footprints, and dependable performance. Their commercial series supports cascading systems and efficient scaling, making them a good fit for businesses with variable demand. Noritz systems often emphasize ease of service access and modular servicing, which translates into faster repairs and less downtime.
We provide tailored commercial water heater installation and commercial water heater repair for Noritz commercial systems, including installation of multiple units, proper configuration of recirculation loops, integration of water temperature mixing, and commissioning. When repairs are necessary, our team is skilled at component-level troubleshooting, like seal replacement, circuit board diagnostics, water pressure transducer checks, scale removal, or recirculation pump servicing.
System Design Best Practices
When planning a commercial tankless water heater system, there are critical design decisions to make: estimating peak flow rates, accounting for temperature rise, matching fuel capacity, venting configuration, and control logic. We always build redundancy into large systems so that if one module is down for maintenance or repair, the rest can handle the load. We carefully plan venting to minimize length and bends, optimize combustion air intake, and use properly sized gas lines. In many installations, we include water treatment or scale mitigation devices to protect heat exchangers and maintain warranty compliance. Our designs also consider future expansion, so your system can scale as your business grows.
Retrofit vs New Installation
If you have an existing commercial water heater system, retrofitting to a tankless system may offer cost savings and increased performance. Whether converting from traditional tank heaters or upgrading old tankless units, we analyze existing infrastructure and propose a retrofit plan. We handle all transitions in plumbing, venting, controls, and backup systems. We always balance minimal disruption to your operations with achieving a high-efficiency outcome. Our experience in commercial water heater installation ensures that the retrofit is done right, and our responsiveness in commercial water heater repair gives you peace of mind.
Emergency Service & Rapid Response
Hot water is not optional for most commercial clients; any downtime can cost revenue. That is why we maintain rapid response service teams ready to diagnose and resolve issues quickly. In the event of system failure or urgent repair demand, we prioritize dispatch, provide temporary solutions when feasible, and track parts. Our team is well-versed in commercial water heater repair for Navien, Rinnai, and Noritz and can often repair or bypass components on-site to restore operations.
Warranty, Support & Documentation
We understand that warranties and documentation are essential for commercial clients. For every installation, we provide as-built drawings, wiring and piping diagrams, startup checklists, and maintenance guides. We assist in registering your system with the manufacturer so that warranties remain valid. We also offer ongoing support and consultation, helping you maximize the life of your system and reduce the total cost of ownership.
Why Partner with Tankless Pros AZ?
You benefit from a partner committed to excellence, reliability, and deep expertise in commercial water heater installation and commercial water heater repair. Our technicians are fully licensed, bonded, and insured. We follow industry best practices, stay current on manufacturer training, and deliver strong customer communication through every phase. Our local presence in the Phoenix area means faster dispatch, better familiarity with local code, and easier maintenance support.
Getting Started & Next Steps
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Schedule a site evaluation – we’ll measure demand, survey existing systems, and recommend the optimal solution.
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Custom system design – we will size, select, and plan your Navien, Rinnai, or Noritz commercial tankless arrangement.
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Installation & startup – our certified crew installs, tests, and hands off complete documentation.
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Ongoing support – take advantage of maintenance contracts and emergency repair service.
Contact us today to discuss how we can design, install, and maintain a commercial tankless water heating system tailored to your business. Prompt, professional, dependable service is what we deliver.