NEMA DC 3-2013 Residential Controls—Electrical Wall-Mounted Room Thermostats covers self-contained, electrical and electronic, wall-mounted room thermostats. Also available, NEMA DC 3 Annex A-2013 Energy-Efficiency Requirements for Programmable Thermostats contains performance requirements for programmable thermostats described as energy-efficient. Both documents, published by NEMA, are available for download or in hardcopy format.
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