Having lived with an ancient heating system and no cooling for years, a
Pennsylvania congregation now sings the praises of the updated
hydronics and new mini-splits that brought a mechanical renaissance
to the church’s various spaces.
An engineer with the 9th-largest school district in the United States writes about the IAQ testing and final report that his district commissioned. From offices to classrooms to cafeterias and restrooms, the monitoring was extensive. Read the results and some author comments about acceptable IAQ in schools, the possibility of overdoing fresh air, and the associated costs.
New filters and a monitoring system helped the Carolina Conceptions Fertility Clinic increase its success rate. Since Carolina Conceptions Fertility Clinic opened its doors in August 2006, it has become
Inside this nonprofit’s new headquarters in Portland, variable refrigerant
flow teamed with zonal heat exchange, 100% DOAS, daylighting, CO2
sensors, and more to deliver comfort while bringing actual energy
usage in under the design target of $0.83 per year.
Retrieving every last bit of performance from the system while stopping short of the surge line is no small feat. Dig into sizing, tower selection, chilled water loads and stability, and condenser water management to leave no efficiency stone unturned. Read more in April issue