In 1929, Oscar Bock, a young engineer, inventor and entrepreneur established a manufacturing company bearing his name to produce products of his invention. The young company soon began manufacturing oil burners in response to the escalating use of heating oil as an energy source in lieu of coal. Within a few years, his company was manufacturing gas and oil-fired water heaters and eventually discontinued the production of oil burners. Over time, the company grew to become North America’s largest manufacturer of oil-fired water heaters and a leading producer of residential indirect and commercial gas water heaters. As the company grew it earned a reputation for building robust products of unsurpassed quality. Today, Bock Water Heaters, Inc. manufactures water heaters designed to operate on any fuel (solar, geothermal, natural gas, propane, oil and electricity) and offers a large portfolio of indirect water heaters and storage tanks.
Bock Water Heaters are proudly manufactured in our two Wisconsin facilities. We are a 100% employee owned company, meaning we are each personally committed to providing the highest level of product quality, customer and technical support. We utilize the thickest steel in the industry, up to 40% thicker than our competitors, protected with cobalt rich C-Glass, for the highest level resistance to corrosion. This allows Bock to provide you a five year warranty, one of the longest in the industry.