The number one housing complaint in New York City during the winter months is a lack of heat. Tenants who want to force their landlords to provide adequate heat can call the city’s 311 line and request that an inspector from the city’s Department of Housing Preservation and Development visit their home but there are a limited number of inspectors and home visits may occur when a tenant is at work. Tenants can now use a tech tool to get action: a web-enabled thermometer that documents conditions