I have a dilemma with sizing my gas fireplace box to fit a new glass door.
The firebox is 40-in W x 23-in H
Medium glass door: 30-37-Inch width of firebox opening and 22.5-32.5-Inch height of firebox opening, with 37.5-33-Inch overall frame dimensions.
Large glass door: 36-43-Inch width of firebox opening and 25.5-32.5-Inch height of firebox opening, with 43.5-33-Inch overall frame dimensions.
So look like my firebox width is OK for Medium but the height of 40-in is higher than the Medium. Is that OK?
Or should I pick Large where both width and height is larger than my current firebox?
What is safe?