(Watertown) Officials with Waupun Equipment have sent out a letter thanking all of the emergency personnel who helped extinguish a fire at their Watertown facility on Monday. No injuries were reported in the pre-dawn blaze on Frohling Road that caused $1.1-million dollars in damage. The Watertown fire chief called it a tough fire to put out because of the freezing cold and strong winds. Eight departments rotated firefighters in extinguishing the flames. The letter from the company thanks the fire departments, EMS agencies and first responders that were out in the cold temperatures and strong winds. The Watertown Department of Public Works and local businesses were also singled out for providing salt, sand and excavators. The letter says (quote) “words cannot express our gratitude for all the help, thoughts and phone calls” adding that they are “grateful to be in communities that are willing to help when something like this happens.” Investigators suspect an oil burner is responsible, though the cause remains under investigation. Even after the fire, the Watertown location is still open.