All of these fireplace glass doors are designed and made to perfectly fit your Heatilator fireplace.
Heatilator Fireplace Models: DX42, DX42AI
Opening Size: 42 x 22 15/16
First Available Doors for Your Model: The EZ Door for Heatilator Fireplaces
Quick Ship: The EZ Door and The EZ Door Lite
How to Measure for Fireplace Doors