05 Jun Keep Cool Air Inside: How to Check Your Fireplace for Drafts This Summer

As temperatures rise during summer time, your air conditioning system might still be running to keep your home comfortable. But if your fireplace isn’t properly sealed, you could be letting cold air escape—driving up energy bills and forcing your cooling system to work harder.

At D.E. Duffey & Sons, we want to help homeowners make the most of their home comfort systems. A simple fireplace check can go a long way in preserving your indoor comfort and saving energy.

🔍 Step 1: Make Sure the Damper Is Fully Closed

Your fireplace damper should be tightly sealed any time the fireplace isn’t in use. An open or poorly closed damper allows cool air to escape through the chimney—just like leaving a window cracked open at the top of your house.

Quick test: Shine a flashlight up the flue to see if outside light is visible. If it is, your damper may not be closing completely.

🧰 Step 2: Inspect the Damper for Wear or Gaps

Old or damaged dampers can warp, rust, or become stuck over time. If yours doesn’t close properly or feels loose, it may be time for a replacement to prevent ongoing air leaks.

🔥 Step 3: Add Glass Fireplace Doors

Installing tempered glass doors is a great way to block drafts and seal off the fireplace when not in use. They also add a polished look and provide an extra layer of safety for families.

🧼 Bonus: Seal Any Gaps Around the Fireplace

Use fire-rated caulk to seal cracks or spaces where the fireplace meets the wall. Even small gaps can allow conditioned air to escape.

Upgrade Your Cooling Equipment for Maximum Comfort

Still noticing uneven temperatures or rising energy costs? It may be time to upgrade your cooling system. Our expert team at D.E. Duffey installs high-efficiency A/C systems that keep you cool while saving you money.

Call us today at 610-940-1400 or explore our cooling equipment options at
https://deduffey.com/heating-cooling-installations/cooling-equipment/