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Exhaust vent – wasps nest!

LL87/09 Energy Auditor will recommend that this 2-pipe steam radiator should have a functioning steam trap. Remove the air vent which is only used on one-pipe steam radiators. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor will recommend installing an air vent on this hallway one-pipe steam radiator. If steam vent is not working, rising steam cannot enter radiator and it may not heat at all. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor will check these dual circulating pumps (one motor plus backup) to keep No. 6 oil heated and moving all the time. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor will examine this 24/7 sump pump in a building that was constructed over an underground river extending from Central Park to the East River. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor will analyze the cost and payback period of installing variable voltage variable frequency drives (VVVF) to improve the energy efficiency of the original DC elevator motors. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor will match the number of common area meters with what was input into the LL84/09 Benchmarking Report to verify its accuracy. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor notes that this office tenant installed occupancy sensors in each bathroom and each office to save electricity. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor uses a smoke stick to see if air is penetrating through exterior doors which may need to be weather sealed to save energy. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor will remove the top of this roof mushroom air vent to see if the vent fan or belt must be repaired or replaced. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor and retro-commissioning agent note that these properly insulated hot water piping in the boiler room saves energy costs by reducing heat loss. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor will examine the settings on the boiler's Heat Timer control system, which regulates the building's indoor temperature by controlling the boiler run time, which is based on the outdoor air temperature and the condensate return line temperature. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor notes that tenants in this sub-metered cooperative use 30% less energy than master metered buildings. People change their behavior when they see that turning off a light bulb shows an immediate reduction in kWh and expense. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor will recommend common area Energy Star front-loading clothes washers which are more efficient than top-loading washers. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor will recommend sealing through-the-wall pipe penetrations to reduce the air flow from one area to another, which may contribute to "stack effect". © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor can verify tenant comfort by leaving a tiny wireless data loggers (top shelf) for a few winter weeks to measure the indoor temperature differentials on representative floors and exposures. Over- and under-heated apartments will be revealed. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor notes that this radiator cover has an open grille and enough space at bottom to allow air to circulate properly. The doors provide access to replace steam traps. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor can verify tenant comfort by leaving a tiny wireless data loggers (top shelf) for a few winter weeks to measure the indoor temperature differentials on representative floors and exposures. Over- and under-heated apartments will be revealed. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor can leave a tiny data logger in the basement for a few winter weeks to measure indoor temperature differentials on representative floors and exposures. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor can leave a tiny data logger (top shelf) for a few winter weeks to measure indoor temperature differentials on representative floors and exposures. © 2015 IntelliGreen Partners LLC

LL87/09 energy auditor can leave a tiny data logger in the basement for a few winter weeks to measure indoor temperature differentials on representative floors and exposures.

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