Properly insulating gas fireplaces is critical to preventing cold air penetration, which can lead to moisture buildup and mold growth when the cold air meets the warmth of the fireplace.
Direct Vent Exhaust - Horizontal Termination - Insulation?
Burn a Gas Fireplace Safely and Healthily with An Air Purifier
Roast my spray foam insulation job. What yall think? : r/Insulation
Neattec Magnetic Fireplace Draft Stopper - Fireplace Cover to Block Cold Air from Vent to Prevent Heat Loss - Magnet Fireplace Screen - Indoor Chimney Draft Blocker Vent Covers- 36 x
Carpentry & Remodeling
RUTLAND Fiberglass Insulation is an insulation strip with a peel-off, self-adhesive backing that is ideal for forming a smoke- and gas-tight seal
10 ft. x 1-1/2 in. Fiberglass Fireplace Insert Insulation
Fireplace Contractors & Their 5 Most Common Mistakes
Is It Safe to Put Insulation Behind a Gas Fireplace?
Carpentry & Remodeling
How to Insulate a Fireplace
insulation - How can I insulate my fireplace when it's not in use? - Home Improvement Stack Exchange
insulation behind the fireplace facing?
Fireplace insulation, Insulation was put above our gas fire…
A Step - By - Step Guide To Understanding Fireplace Inserts