Aware of the many benefits of tankless technology previously installed at the Canton, NY outpatient facility, Andy Leonard, President of ENI Mechanical, knew that tankless would meet greater hot water demands at a larger inpatient facility. “At Gouverneur Hospital they had just built an additional wing and continued to supply heat and hot water to it with their existing hydronic and domestic water system.” This system was comprised of a 5.4M Btu boiler that fed a 6,000-gallon storage tank and an older, inefficient 1.7M Btu back up boiler. Due to the additional workload, the boiler system was unable to keep up and the hospital was experiencing situations in which the water would not keep up to the required temperature setting. “The entire set-up had become increasingly unreliable,” said Andy. “The hospital maintenance staff was having to work continually on the system to ensure that hot water was restored and at least one of the two boilers was operational.”
Howland Pump and Supply was brought in to show the hospital various options available if they moved to a separate modular boiler system for their hydronic heating needs in the winter and a tankless system to supply their domestic hot water year-round. After deciding this was the best option, piping schematics for the domestic hot water system were produced by John Clark with Brooks Washburn Architect, out of Potsdam NY. “Going from four recirculation zones and pumps to one while eliminating the need for storage reduced an unbelievable amount of inefficiency and operating cost — Plus the hospital was making efficiency improvements moving from 80% efficient boilers to 97% efficiency with Rinnai tankless,” said John.