We Manufacture Crown Royal Stoves!
It's How We Built Our Company

Greentech Manufacturing Inc. is a family owned business, based out of International Falls, Minnesota, which is known as “The Icebox of the Nation” where temperatures plummet below -40º F during the winter months. We have been in business since the early 90s manufacturing outdoor furnaces, air handlers and unit heaters, distributing plumbing and heating supplies and offering custom metal fabrication.

Greentech manufactures an industry leading outdoor furnace known as Crown Royal Stoves. Manufactured with quality workmanship and skilled labor, confident in our product, we stand behind our stoves with a 20 Year Limited Warranty. A warranty that cannot be matched, even by a Lifetime Limited Warranty.

greentech manufacturing outdoor wood stove family

From Left to Right: Ryan & Jaime Horne, Keith Horne, Jessica & Cody Holmestad



and commitment is to provide customers with quality American made products. Manufactured 100% in the USA, Crown Royal Stoves is designed to dramatically reduce emissions with the aid of an advanced air delivery system, reducing your carbon footprint and exceeding EPA standards.



to innovate our products and services we offer. Since the beginning we have been an INNOVATOR. Crown Royal Stoves strives to not only manufacture the highest quality, best performing outdoor furnace on the market but we also understand the importance of service AFTER the sale. That is something you just can’t find anymore.