When I look at any replacement hydronic boiler project, my tenet is always to assume the existing system is installed improperly. I like to pretend I am a famous detective, such as Sherlock Holmes, and my job is to uncover the hidden mistakes.

What I learned early on was you inherit any problem in the building once you touch the boiler. My boilers have been blamed for everything from a malfunctioning garage door opener to the lights in the second-floor classroom stopped working. You may have heard the customer say this on one of your jobs, “This thing worked fine before you installed that new boiler.”