At Kalins Indoor Comfort, our roots run deep. Learn about the history of our company:
1921

Jacob Kalin starts the Norfolk Furnace Company in Sioux City, Iowa.
Jacob Kalin

Post WWII

Jacob Kalin forms a relationship with Lennox as a dealer. A relationship that continues today.
Post WWII

1947

Sid Kalin (Jacob’s son) starts working at the company called Kalins Heating and Air Conditioning now located at 1715 4th Street in Sioux City, IA.
1947

1948

The Lennox News features Kalins.
1948

1954

Sid Kalin appears on live television as a heating and cooling expert and the rest becomes history. Atta Boy Sid! Sid continues to appear on TV throughout his career along with his son Bruce.
1954

1971

Kalins observes its 50th year in business.
50th anniversary

1976

Third generation Bruce Kalin (Sid‘s son) joins the company. The business remains to this day the longest continuously operating heating and air conditioning firm in Sioux City.
Bruce

1982

Sid Kalin introduces a “revolutionary innovation” in the industry, a Pulse gas furnace, said to be 91 to 96 percent efficient, compared with the standard 55 to 60 percent efficiency of the day.
Sid Pulse 21 by Lennox Ad

1983

Bruce Kalin opens a business in Vermillion, SD called Kalins Indoor Comfort.
Vermillion

1989

Bruce Kalin consolidates the Sioux City and Vermillion operations under the Kalins Indoor Comfort name.
1989

1999

Sid Kalin, an icon in the heating and cooling business retires. Bruce Kalin takes the helm.
1999

2011

Kalins celebrates 90 years in business.
90th Anniversary invite

2017

Kalins Indoor Comfort opens its third location in Yankton, SD.
Yankton

2021

Kalins Indoor Comfort celebrates 100 years in business!
100 years