Navien provides school a lesson in good economics With the growing understanding and acceptance of condensing tankless water heaters, educational facility and campus sustainability managers have discovered a new and substantial way to bring down costs. Condensing tankless water heaters produce an endless supply of “on-demand” hot water — only when it is called for. They eliminate the “standby losses” or energy wasted in keeping water heated in a storage tank and ready in case it is called for. Brian Palm, the director of sustainability and teacher of environmental science at The Brook School in North Andover, Mass., says with high-demand periods followed by low- or no-demand periods, condensing tankless water heaters are proving to be a solid lesson in good economics. “In December of 2012, Brooks was looking to make its entrance into energy efficiency projects,” he says. “As it happened, the dining services director was having repair concerns with the dishwasher and the director of facilities was concerned about an aging water heating system in the basement of the building that provided the kitchen (and the dishwasher) with hot water. “The project seemed ripe to consider as we weighed high repair costs, older systems that were soon due for replacement and an opportunity to use less hot water. We projected these upgrades would provide more than $23,000 in savings on an annual basis. We calculated the project would have a payback of 2.3 years.” That assessment moved the school to replace two 400,000 BTU boilers and a 300-gal. Storage tank with three Navien NPE-240A tankless water heaters. “A year later, the AP environmental science class took on the challenge of quantifying the yearone savings,” Palm explains. “The opportunity to calculate this ROI provided the chance to combine their understanding of water use and energy use in a real-world application. The project demonstrated the value of this type of investment.” The success of Navien’s Premium Efficiency (NPE-A) tankless water heater series, recommended by Avila Plumbing for the Brooks School, is due, in part, to ComfortFlow™, a patented system built into the unit. The ComfortFlow technology incorporates a buffer tank and pump inside the casing, which eliminates the need for the installing contractor to purchase and plumb-in a pump and recirculating line. Additionally, and ideal for retrofit purposes, the NPE series units operate on 1/2-in. Gas lines up to 24 ft. Navien has grown to be the leading producer of condensing tankless water heating units in North America. For more information, visit www.navienamerica.com.
Published by SupplyHouseTimes. View All Articles.
This page can be found at http://digital.bnpmedia.com/article/Navien/1750871/215745/article.html.