1 GAL (Red/Pink) Super Concentrate Heat Transfer Boiler Antifreeze
Boiler Antifreeze Red Concentrate 1 Gallon Non-toxic
In order to get to -20º on your boiler, dilute with 1 gallon of distilled water to get 2 gallons of (-20º) below the antifreeze with a 1 to 1 ratio. If you wish to
All Hydronic Heating Manufacturers recommend -10 to -20 for optimum performance but freeze point is determined by what negative temps your coach experiences.