Apartment Complex Cuts Fuel Use by 15% and Service Calls to Zero: Installs gas condensing boilers and hot-water tanks

摘要

At Canterbury Apartment Homes in Nashua, N.H., each of 16 30-unit buildings was served by four boilers and one 50-gal. domestic-hot-water tank installed in 1972. During the long New England winters, the boilers ran 24/7, frequently breaking down at seemingly the least convenient times and generating as many as seven or eight service calls a day - or night. Maintenance crews replaced 12 to 15 circulators - at a cost of $400 to $700 each - every season. Worse, the inadequate supply of hot water frustrated tenants, leading to high resident turnover. Fuel expenses, carried by the community owners, compromised profits.