Can I mix Hydromx® with other chemical products in the heating system? October 14, 2021 By Hydromx® is a carefully formulated chemical solution which has taken many years of research and develop to the point where it delivers up to 35% energy savings. The manufacturers strongly recommend that no other chemicals are used with the Hydromx® heat transfer fluid as these can impact on performance and may have unknown effects on the system. Note: No other chemical products are necessary within a heating system as Hydromx® has built in calcification, corrosion, microbiological and frost protection. If you have any specific requirements please contact us email@example.com.