We Manufacture Crown Royal Stoves!
It’s How We Built Our Company
Greentech Manufacturing Inc. is a family-owned company headquartered in International Falls, Minnesota, known as the “Icebox of the Nation,” where winter temperatures regularly fall below -40°F. Since the early 90s, we’ve manufactured outdoor furnaces, air handlers, and unit heaters while supplying plumbing and heating products and providing custom metal fabrication services.
Every Crown Royal Stove is proudly manufactured 100% in the USA using quality materials, skilled craftsmanship, and decades of manufacturing experience. We stand behind every furnace we build with a 20-Year Limited Warranty, giving you confidence in the performance and durability of your investment.
Our Commitment
Our commitment is simple: build dependable outdoor heating solutions that deliver exceptional performance, efficiency, and long-term reliability. Every Crown Royal Stove is engineered to maximize heating efficiency while helping reduce emissions through advanced air delivery technology. We take pride in manufacturing products that meet rigorous industry standards while supporting American craftsmanship.
Our Mission
To innovate our products and services we offer. Since the beginning, innovation has been at the core of everything we do. We continuously improve our products and manufacturing processes to provide reliable heating solutions for homes, farms, businesses, and commercial applications.
Just as important as the products we build is the support we provide after the sale. From product guidance to dealer support and customer service, we’re committed to building lasting relationships and helping our customers get the most from their Crown Royal Stove for years to come.