Honeywell T882 Chronotherm Thermostat

Honeywell Incorporated of Minneapolis, Minnesota manufactured this Honeywell Comfort T882 Chronotherm thermostat around 1966. While conventional thermostats would allow for different settings during the day and night, the change had switched by hand. The Chronotherm could automatically change the thermostat’s setting between day and night. Chronotherm is one of Honeywell’s most prominent brands and has been in existence since the 1930s. The T882 model Chronotherm has a clock on the left side of the face and a temperature indicator on the right side. Above the temperature indicator are two glass sliders that can be set between 60 and 90, one controlling the temperature during the night and the other during the day. The T882 was the first Chronotherm that had heating and cooling capabilities, previously the house would only be cooled by to the ambient temperature.
The ubiquity of thermostats in 21st century homes shrouds the decades of innovation, industrial design, and engineering that went into making them an everyday object in almost every home. In the early 20th century, a majority of American households still heated their homes with manually operated furnaces that required a trip down to the basement and stoking the coal fired furnace. Albert Butz’s “damper-flapper” system was patented in 1886 and allowed home owner to set the thermostat to a certain temperature which would open a damper to the furnace, increasing the fire and heating the house. Progressive innovations allowed for the thermostats to use gas lines, incorporate electricity, turn on at a set time, include heating and cooling in one mechanism, and even connect to the internet.
Currently not on view
Object Name
date made
overall: 6 in x 3 1/2 in x 2 in; 15.24 cm x 8.89 cm x 5.08 cm
overall: 6 in x 3 1/4 in x 2 1/8 in; 15.24 cm x 8.255 cm x 5.3975 cm
ID Number
accession number
catalog number
Domestic Furnishings
Engineering, Building, and Architecture
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Work and Industry: Mechanical and Civil Engineering
Data Source
National Museum of American History, Kenneth E. Behring Center

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