“I ordered an uncommon Air Eliminator for my 5 zone gas furnace. I replaced a 5 zone manifold and other components but every 10 days I lost heat, or had reduced heat to the 2nd floor. I got tired of bleeding the air out of zone 5 and finally deduced that my very old Air Eliminator may have been malfunctioning. I installed the new , which I received the very next day (after ordering just the night before) and it eliminated all my problems.”
