Open Heating and Air Conditioning system ends up stinking

This area is usually actually comfortable. I can get by with just an open window plus a ceiling fan most of the time. But this year has been nothing however non stop rain. It is hard to keep a window open when it won’t stop raining outside. Thankfully my Heating and Air Conditioning system can be switched to an open system. That means that it takes air from outside rather than inside the house. I just turn the temperature control to the fan setting plus then go to the utility shed plus change it to “open”. Then nice air from outside circulates throughout the whole loft however no rain water gets in. It is actually nice. Too bad I haven’t used this capability in more than a few years. So when I finally did use it, a awful stench circulated the house. It stinked like an outhouse. It was disgusting. I opened a few windows, in the rain, then hoped that the stink would just air itself out plus go away. After 30 hours it became clear that this was not going to happen. I had to turn off the Heating and Air Conditioning fan plus then keep the windows open while running the ceiling fan. Then I had to put towels in all the windowsills. After that I called up our Heating and Air Conditioning supplier. I wasn’t sure if the stink was just because of the open system or if there was something actually wrong with out Heating and Air Conditioning system. It turned out it was just the open system. There was a bunch of dirt, mold, plus a dead bird in the intake area. That is all cleaned out now. The Heating and Air Conditioning specialists put up a mesh screen so no more stuff gets through into the tubing either. Now, if it would just stop raining, I would be thrilled as a clam.


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