What is the problem with domestic water heat exchangers and antifreeze?
Quote from: bottomacher on February 17, 2010, 05:31:33 AMWhat is the problem with domestic water heat exchangers and antifreeze?Ethlene Glycol is poisonous, if you should have a leak in your HX, potential for death...
..Propylene Glycol is supposedly not poisonous, you actually see it on food ingredient labels....
Ethylene Glycol is a Poison and if it leaked into the domestic water system that would be bad. On our Aqua-Hot unit we have, the domestic water-heating coil is inside the boiler unit with direct contact with the anti-freeze in the system. The engine preheat coil is around the out side of the boiler unit.