…until the gas furnace is repaired. I hope that the furnace maintenance specialist was correct about the heat exchanger. It does seem like that is the problem. There were water condensation stains and drip stains in the right places and the sensors coded “Error 33” which is related to the heat exchanger. I worry a lot especially since winter is coming soon. For the next three days the weather will be rainy and cool. After that temperatures will drop to the low 30’s and high 20’s during the day. I’m not looking forward to that even if the furnace is working.