Modular boilers have come a long way in the past few years, along with load-matching strategies. Improving efficiencies, navigating critical tight spaces, and allowing for future growth are three reasons this option is heating up.
The forward march of progress in terms of basic equipment and controls sophistication has made the combination of condensing and non-condensing boilers more attractive than ever. Still, you can’t just grab one of each and expect miracles.
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.