"For instance, reducing the overall air leakage of a building can create more consistent temperatures from room to room and retain conditioned air longer," says Stacey Paradis, deputy director for the Chicago-based Midwest Energy Efficiency Alliance.
"When considering measures it is helpful to not only consider the payback period of the equipment, but also the reduction in operating costs extending beyond the payback period for the life of the measures," Paradis
"Sometimes, the marginal increase for higher efficiency heating equipment can be recouped in a matter of a few years, but that new equipment will continue to save energy (and money) for the next 15-20 years."
Recent innovations in boiler controls for multifamily units have shown promise to reduce boiler cycling and thus save energy because they modify how the boiler works.
These controls, according to Paradis
, have fairly quick paybacks.
"A trained professional will perform diagnostic energy tests such as air leakage, duct pressurization, and combustion safety tests," Paradis
"There are many low and no cost measures that can improve energy efficiency, including replacing incandescent lights, adjusting thermostat settings, and participating in utility direct install programs," Paradis