Abendroth & Root Manufacturing Co
An American industrial manufacturer that produced boilers, water-heating and sanitation equipment before briefly building Frontenac automobiles from 1906 to 1913.
Last updated August 31, 2026
AI crawler reads
No AI crawler has read this profile since Oct 28, 2026.
Overview
Abendroth & Root Manufacturing Company was an American manufacturing business founded in Newburgh, New York, in 1866. Its original activities centered on industrial and sanitation equipment, including water heaters, water tanks and boilers. The company became particularly associated with the Root Water Tube Boiler, an industrial boiler design used in power-generation and related installations. One documented customer was the Philadelphia Edison Electric Light Company, which received boilers with a combined capacity of 3,500 horsepower. The company later diversified into automobile manufacturing. It entered the automobile business in 1906 and marketed its cars under the Frontenac name. The vehicles were aimed at an upper-middle-class market and used large-displacement four-cylinder engines. Only twelve automobiles were produced during the first year, but annual output rose to a peak of approximately 100 vehicles in 1907. Production then declined and ended in 1913. Frontenac production included several body and vehicle forms. Passenger-car variants carried the designations C, D and E; their underlying technical specifications were broadly similar, while the body styles differed. Documented forms included a roundabout, a touring car and a limousine. The touring car provided seating for seven people and used a 124-inch wheelbase. Its four-cylinder engine had a displacement of approximately 5,808 cubic centimeters and produced between 40 and 45 horsepower. The vehicles had a 20-gallon fuel tank. The company also produced a commercial vehicle known as the Model F truck. It was offered in three-ton and five-ton versions. The truck used a 126.5-inch wheelbase, and engine output rose from an original 40 horsepower to 60 horsepower in the five-ton version. The automobile venture was not sustained as production declined after its 1907 peak. Abendroth & Root abandoned the automobile effort in 1913 and returned to its earlier industrial manufacturing activities. The factory was located at the foot of Park Place in Newburgh. Available reference material does not establish a later corporate successor, ownership structure, current operations or a precise date of final dissolution.
History
Abendroth & Root Manufacturing Company was established in Newburgh, New York, in 1866. The company began as an industrial manufacturer rather than an automobile maker. Its product range included water heaters, water tanks and other sanitation equipment, together with boilers for industrial and utility applications. The Root Water Tube Boiler became one of its notable products. The company was also reported to have supplied the Philadelphia Edison Electric Light Company with boilers totaling 3,500 horsepower, indicating a role in the period's expanding electric-utility infrastructure. In 1906, Abendroth & Root diversified into automobile production. It used the Frontenac name for cars intended for upper-middle-class customers. The vehicles were characterized by large-displacement four-cylinder engines and were offered in multiple body forms. First-year production was limited to twelve cars, but output increased to about 100 vehicles in 1907, the highest annual figure documented for the marque. The passenger vehicles included models designated C, D and E. Their mechanical specifications were described as nearly alike, with the principal differences being the bodies fitted to the chassis. The documented body styles included a roundabout, a seven-seat touring car and a limousine. The touring-car chassis had a 124-inch wheelbase and used a four-cylinder engine of approximately 5,808 cc. Bore and stroke were approximately 120.65 mm and 127 mm, respectively, with output in the range of 40 to 45 horsepower. A 20-gallon fuel tank was specified. Abendroth & Root also entered the commercial-vehicle field with the Frontenac Model F truck. It was offered in three-ton and five-ton forms and had a 126.5-inch wheelbase. The engine was initially rated at 40 horsepower; the five-ton version was subsequently associated with a 60-horsepower rating. These vehicles broadened the company's automotive range beyond private passenger cars. The automobile business did not maintain its early production level. Output declined after 1907, and the company ended automobile manufacturing in 1913. It then returned to its earlier industrial activities rather than continuing the Frontenac venture. The manufacturing facility was located at the foot of Park Place in Newburgh. The available reference does not provide enough information to establish the company's later corporate history, any successor organization, exact dissolution date or current ownership. As a result, the company's documented significance rests on both its industrial equipment production and its brief participation in the early American automobile industry.
- 1913
Automobile production ends
[1]Declining output led the company to abandon automobile manufacturing and return to its original industrial business.
- 1907
Frontenac output peaks
[1]Annual automobile production reached approximately 100 vehicles, compared with twelve in the first year.
- 1906
Automobile production begins
[1]The company entered the automobile business and began producing Frontenac vehicles.
- 1866
Company founded in Newburgh
[1]Abendroth & Root Manufacturing Company was founded in Newburgh, New York, beginning as a producer of industrial and sanitation equipment.
Root Water Tube Boiler becomes a notable product
[1]The company became associated with the Root Water Tube Boiler and supplied boilers for industrial and electric-utility applications, including a documented 3,500-horsepower order for Philadelphia Edison Electric Light Company.
Products and positioning
The company combined industrial equipment manufacturing with a short-lived automobile venture. Its Frontenac cars were positioned toward upper-middle-class buyers and emphasized large-displacement four-cylinder power, while its earlier business served industrial, utility and sanitation-equipment needs.
Industrial boiler
Root Water Tube Boiler
A water-tube boiler associated with the company's original industrial manufacturing business. It was used in power and industrial contexts, and the company was noted for supplying boilers with a combined capacity of 3,500 horsepower to the Philadelphia Edison Electric Light Company.
Industrial and sanitation equipment · 1866
Water heaters, water tanks and sanitation equipment
These products formed part of Abendroth & Root's original manufacturing range before and after its automobile experiment. The available reference identifies the categories but does not provide detailed model names, specifications or production dates.
Passenger automobiles · 1906
Frontenac automobiles
Frontenac passenger cars were introduced in 1906 for an upper-middle-class market. The C, D and E designations covered vehicles with broadly similar mechanical specifications but different body styles, including a roundabout, a seven-seat touring car and a limousine. The cars used large-displacement four-cylinder engines producing approximately 40 to 45 horsepower.
Truck
Frontenac Model F
The Model F was a commercial truck available in three-ton and five-ton versions. It used a 126.5-inch wheelbase. The engine was initially rated at 40 horsepower, with the five-ton version associated with a later 60-horsepower rating.
Brand decisions
1913
Withdrawal from the automobile businessStrategyBackground
Frontenac production declined after its 1907 peak and did not sustain the company's automobile effort.
Action taken
Abendroth & Root ended automobile production and returned to its original industrial manufacturing activities.
Aftermath
The Frontenac automobile and Model F truck became historical products, while the company's later corporate status is not established by the available reference.
1906
Diversification into automobile manufacturingStrategyBackground
After operating as a manufacturer of boilers, water-heating equipment, tanks and sanitation products, Abendroth & Root expanded into the early American automobile industry.
Action taken
The company began building automobiles under the Frontenac name, targeting upper-middle-class buyers with large-displacement four-cylinder cars.
Aftermath
Production reached about 100 vehicles in 1907 but declined thereafter, and the automobile operation was discontinued in 1913.
Recent events
Frontenac acquired EFC International[2]
Reported:
Frontenac announced that it had acquired EFC International. The financial terms were not disclosed.
Frontenac acquires Newterra[3]
Reported:
Frontenac announced that it had acquired Newterra Group Ltd. from its current shareholders. The financial terms were not disclosed.
Sources3 sources
Cite this profile: Cite the canonical profile. /brand-wiki/abendroth-and-root-manufacturing-co · Editorial policy · How profiles are compiled