Tag: door undercut

  • When Are Door Undercuts Sufficient for Return Air?

    Prime:  prime Subtitle:  You don’t always need to install individual returns, transfer grilles, or jumper ducts Images:  Most people don’t know that simply closing a door in their home can make them sick, increase their energy bills, or reduce their comfort. We live in this invisible stuff called air. We pull many pounds of it…

  • When Are Door Undercuts Sufficient for Return Air?

    Prime:  prime Subtitle:  You don’t always need to install individual returns, transfer grilles, or jumper ducts Images:  Most people don’t know that simply closing a door in their home can make them sick, increase their energy bills, or reduce their comfort. We live in this invisible stuff called air. We pull many pounds of it…