Outdoor Wood Furnace Water Treatment

To ensure the maximum efficiency and longevity of any furnace/boiler/stove, water treatment is crucial. Treating systems with Control chemical will prevent corrosion and scale buildup. Calcium and magnesium are commonly found in many water supplies. These impurities cause layers of scale that not only decrease heat transfer efficiency but cause pitting on the interior water jacket. Over time constant pitting will result in leaks. Once Control chemical is added it creates the necessary barrier needed to prevent the breakdown of metals.

Not all water is treated equally
With many different water supplies, not all water will be treated equally. Initial treatment of water is basically the same. Add recommended amount of Control chemical to water based on the capacity of furnace/boiler/stove. Once initial recommended amount of Control chemical is added, circulate water for 24-48 hours. Using the 4 oz sample bottle provided, take a sample of water. Complete the provided form and mail to designated testing facility.

Skilled Testing Facility
Water samples are tested by skilled individuals that will analyze the conductivity, PH, and nitrate levels.. Recommendations will follow to actions necessary to ensure the longevity of your furnace/boiler/stove. Testing results with recommendations take approximately 3-4 weeks before results are emailed or mailed.

Control Chemical and Testing Required on all Crown Royal Stoves
All Crown Royal Stoves are required to be shipped with initial recommended gallon(s) of Control chemical. Crown Royal Stoves are backed with a 20 Year Limited Warranty. To retain warranty on Crown Royal Stoves it is required to use recommended Control chemical and submit annual samples for testing. Failure to maintain treatment at recommended levels and annual water testing will result in a voided warranty.

Purchasing Control Chemical
Control chemical is specially formulated for Crown Royal Stove. To uphold warranty no other chemical may be substituted. Authorized Crown Royal Stove Dealers are required to provide consumers with any after purchase support need. Consumers are encouraged to purchase the additional Control chemical needed from a local dealership. For online ordering please use www.hydronicheatingsupplies.com.

Sample Bottles and Shipping Labels
Sample bottles and labels are included with every gallon of Control chemical. Replacements are free of charge and can be found at local dealers or call 866-361-7355.

Water Sample Form (PDF)

Control MSDS (PDF)

Control-Chemical

Where to by?

Authorized Crown Royal Stove Dealer or Online at