We continue this series with a discussion on verifying that temperature controls in a domestic hot water system are working properly. TMVs work well at stabilizing system temperatures. When used with point-of-use mixing valves, they provide safe temperatures for bathing and washing. 

In part 4 of commissioning/troubleshooting domestic hot water systems, Ron George discusses how long it takes hot water to get to all fixtures, temperature limit stops, water heater thermostats, digital mixing valves, water flow velocity, and balancing water conservation with health and safety.

Part 3 of this series covers applications and locations for various temperature controls, DHW control valves, temperature control valve standards, and how to protect yourself from liability if the owner refuses to install a control valve serving the hot water distribution system.

Domestic hot water accounts for more than 25% of all scald burns in children. Ron George discusses the codes and standards covering hot water temperatures and how temperature-actuated mixing valves help prevent scalding issues.

Design, installation and maintenance are all important for properly operating a building’s hot water system. Who an owner hires to maintain the building is critical. Most maintenance personnel may not know how to troubleshoot hot water issues properly. Ron George has provided a checklist for domestic hot water systems’ design, installation and commissioning.

Hot water temperature maintenance systems often contribute to scalding injuries and Legionnaires’ Disease cases through inoperable circulating pumps and problematic balancing valves. Read on for Ron George’s insight into these systems.

As this publication celebrates 50 years of educating plumbing professionals about codes and standards, Ron George focuses attention on how five decades of those codes and standards have shaped the plumbing systems we have today.

A primer for designing fuel gas systems: model codes, gas types, heat content, gas pressures, valves, pipe sizing and installation requirements.

An explanation of the common valve types and valve components used in commercial and industrial construction, along with applications for use.