bob32racing
ArboristSite Lurker
My local plumber installed a water to air heat exchanger in my cold air return duct. Im running water 24/7 through my dhw heater and heat exchanger. Now my problem is when the exchanger is hot my furnace will not shut off due to the temp limit sensor. The furnace continues to run to try to cool itself down, but it doesnt cool down since the water is constantly running through it. Is there anyway around this? If i put a zone valve in on a stat and set it at 70 degrees, wont the furnace still run a while after it reaches 70 degrees, until it cools itself down? Possibly making it 72 degrees or more by the time it cools off. Or am i wrong?