The DOE’s proposed rule represents a significant increase in efficiency that would effectively eliminate noncondensing furnaces and significantly impact the design, installation, and cost of nonweatherized furnaces.
Terminology talk at the AHR Expo focused on variable-speed compressors, electronically commutated motors (ECMs), and variable-capacity systems as well as diagnostics and troubleshooting tools for contractors.
Units that both cool and heat are in high demand, but other trends include remote monitoring and, for larger units, the ability to fit through a standard door width.
All correct answers will be entered into a drawing. The winner will receive a Fieldpiece LT-17A digital multimeter. The answer to this riddle, and the next HVACR Service Ticket column, is scheduled to appear in a June 2015 issue of The NEWS.
There is no question there are some chilly months ahead, and homeowners will expect their expensive condensing furnaces to operate without fail, even on the coldest days.