The Glitch & The Fix

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A multiple boiler system is being planned to supply several independently controlled heat zones.

The owner loves the idea of warm floors, but also wants nail-down hardwood flooring.

Circulators are experiencing overheating issues. There’s also heat getting into zones when that heat is not needed.

It takes more than simply running pool water directly through the boiler. Don’t laugh; it’s been done!

In some systems, outdoor reset control can vary the supply water temperature from a relatively high design temperature down to just above room temperature.

Eager to keep up with new technology, an installer decides to install a hydraulic separator between a boiler and distribution system.

To say this system is a piping aberration is going easy on it.

An installer is asked to provide a system that supplies two zones of fin-tube baseboard and two zones of floor heating.

When floor heating and domestic water heating occurred at the same time, I discovered there was no flow through the heat exchanger in the indirect tank.

The cardinal rule of multiple boiler systems is to only provide flow through a boiler that’s operating.