I own a three story house in the northern area of the country. Cold Winter seasons are the norm in this part of the world. My utility costs have increased dramatically every Wintertime. I wondered if my gas furnace as well as Heating as well as A/C plan was really working less efficiently. I emailed the local heating as well as cooling expert to help myself and others understand what is going bad. The Heating as well as A/C repairman came out to do the normal seasonal service as well as find any problems. The Heating as well as A/C tech thoroughly diagnosed the entire gas furnace. I was relieved to learn that the gas furnace nor the rest of the Heating as well as A/C was at fault. But I was taken back by why it was costing me and my roommates so much more to heat my home. The Heating as well as A/C tech asked if both of us could look up in the attic. I didn’t understand since the Heating as well as A/C device was in the basement. The HVAC man as well as I went to the attic. He looked around the entire attic for nearly fifty minutes. I didn’t understand when he said that I was a victim of the stack effect. The Heating as well as A/C technician explained that apartment appreciate mine fall victim to the stack effect quite often. The real problem isn’t the Heating as well as A/C system. The concern is heat escaping through the roof. Heated air get out through leaks in the roof which in turn draws frosty air from outside through leaks in the rest of the house. The Heating as well as A/C specialist told me that I add must add more insulation in the attic. He also commanded I seal leaks in the roof design. The stack effect was what had been robbing myself and others of sizzling air. I now found out how to lower those utility bills.