Healthcare facilities depend on hot water, steam, and HVAC systems every hour of every day. When these systems perform as designed, they often go unnoticed. But small issues—an improperly balanced recirculation loop, a failed steam trap, a neglected heat exchanger, or missing insulation—can quietly impact safety, efficiency, reliability, and maintenance workloads.
These challenges rarely appear overnight. More often, they develop gradually and remain hidden until they become larger operational problems. In an environment where downtime isn’t an option, identifying and addressing small system issues can have an outsized impact across the facility.
Patient Safety Starts with Consistent Temperature Control
For healthcare facilities, hot water is more than a comfort issue. Maintaining consistent temperatures supports patient safety, infection prevention, staff workflows, and everyday patient comfort—from handwashing stations to patient showers.
Stable temperatures depend on more than the water heater itself. A master mixing valve, heat exchanger controls, recirculation pumps, and balancing valves all play a role in ensuring hot water reaches its destination at the proper temperature.
As someone who has managed these systems firsthand, I’ve found that a good master mixing valve is essential for maintaining consistent hot water temperatures throughout a facility.
Inconsistent temperatures can create issues quickly. If a large tank heater no longer heats evenly, cold zones can develop and allow bacteria to grow. Once that water moves through the building, those concerns can spread through the hot water piping and create added risk for immunocompromised patients.
Temperature swings can also affect the patient and visitor experience. A new mother trying to take a shower or a family member washing their hands may not see the mechanical issue behind the scenes, but they feel the impact immediately when hot water is not consistent.
The Energy Losses You Can't Easily See
Some of the largest energy losses in healthcare facilities aren’t immediately visible. Steam traps, condensate return systems, and distribution piping can waste significant energy without obvious signs of failure.
One of the biggest challenges with steam loss is that it’s often invisible until utility costs begin to climb. As I’ve seen in healthcare facilities, it’s frequently the energy manager—not the maintenance team—who notices the problem first.
Steam trap testing should happen at least annually, ideally before the start of heating season. Digital reporting tools can also improve communication between energy managers, supervisors, and technicians, helping ensure issues are identified and corrected.
Hidden Issues Often Go Unnoticed Until Performance Suffers
Heat exchanger fouling and control system compensation are easy to miss because equipment often continues operating long before a failure occurs. As efficiency declines, controls adjust to maintain setpoints, masking underlying issues and forcing systems to work harder than necessary.
Clean-in-place fittings make routine heat exchanger maintenance much easier because they allow teams to quickly isolate the heat exchanger and connect cleaning equipment with minimal downtime and less risk of damage. In one case, I’ve seen a fouled heat exchanger cleaned and returned to service in under 30 minutes with clean-in-place fittings, compared to more than 24 hours of downtime when a tube bundle had to be pulled and a replacement gasket was needed.
Facility teams should also monitor valve positions and trends through their Building Automation System (BAS). Rather than focusing only on whether equipment is meeting its target, it’s important to understand how hard the system is working to get there. BAS trending can help teams spot those warning signs before small performance losses become larger operational issues.
Small Maintenance Decisions Have Long-Term Consequences
Few things are easier to overlook than insulation.
Missing pipe insulation, damaged removable jackets, and poorly maintained mechanical spaces create ongoing energy losses while introducing safety concerns for maintenance personnel. In older healthcare facilities, where mechanical spaces are often crowded and difficult to navigate, exposed hot surfaces can become a daily hazard for the people working around them.
As someone who spent years maintaining these systems, I’ve seen firsthand how quickly missing insulation can become a safety issue.
But keeping insulation in place is often the bigger challenge. The best insulation solution is one that maintenance teams can remove and reinstall easily. If jackets are difficult to work with or don’t fit properly, they’re less likely to make it back onto the equipment after service is completed.
That reality led to another lesson I learned working in healthcare facilities: if something seems more of a pain than a help, and it isn’t absolutely necessary, it probably isn’t going to be there in the future.
For that reason, investing in quality insulation and removable steam jackets, and training teams on proper removal and reinstallation, can have a lasting impact on both energy performance and worker safety.
Reliability Is Everything in Healthcare
Most facilities can tolerate occasional downtime. Healthcare facilities cannot.
Patient care areas depend on heating, cooling, steam, and hot water systems operating continuously. Surgery areas, emergency waiting rooms, intensive care units, and delivery rooms all rely on controlled airflow, temperature, and humidity to support patient safety and care requirements.
Many hospitals need a minimum amount of outside air brought through air handling units to maintain required air changes. If chilled water, heating water, steam, or refrigerant coils fail in an air handler, the areas served may have to shut down or operate without the outside air needed to remain compliant.
That reality makes redundancy, isolation capabilities, and emergency preparedness critical. Throughout my time in healthcare facilities, redundancy was non-negotiable. As we often said, “If they need two to operate, then they should have four.”
Backup equipment allows maintenance and repairs to happen without disrupting patient care. A standby chilled water pump can keep buildings cool during a motor failure, while an extra heat exchanger can maintain hot water service while another unit is cleaned or repaired.
It’s equally important to protect that capacity as facilities grow. Remodels and expansions can increase demand to the point where systems can no longer operate effectively when a unit is taken offline. Reliability isn’t just a design consideration—it needs to be evaluated every time the facility changes.
The biggest challenges facing healthcare facilities are not always major equipment failures. More often, they are the small issues that develop quietly over time—from inconsistent water temperatures and steam losses to fouled heat exchangers, hidden control system compensation, and missing insulation.
Individually, these issues may seem minor. Together, they can influence safety, reliability, energy performance, and staff efficiency across the facility. Addressing them proactively can help healthcare organizations strengthen performance long before larger problems emerge.
About Ryan Duffield | Customer Specialist at Merlo Energy
Ryan Duffield brings 13 years of experience in steam and condensate systems, including more than a decade in the healthcare industry. His background spans hands-on installation and repair, project coordination, and customer support, giving him a practical understanding of both operational challenges and project execution. Today, as a Customer Specialist with Merlo Energy, Ryan combines technical expertise and real-world experience to help customers solve complex steam and condensate issues.
His advice: “Always ask questions. You don’t know what you don’t know until you know it.”
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