Gas Log Set Calculator
Let us help you find the perfect size

Most fireplaces are tapered (front width is larger than the rear width). The most critical dimension for sizing is the Middle Width Dimension of the fireplace. This will allow the burner to be centered in the fireplace.

Example: 42" (front width) + 24" (back width) = 66" / 2 = 33" middle width

When selecting the proper size log set for your fireplace, the Middle Width Dimension must be greater than or equal to the Middle Width Dimension of the sizes listed below:

For G4 and G45 Series Burner/Log Sets
Log Set Sizes Middle Width
(no Valve)
Middle Width
(SPK Valve)
Middle Width
(APK/EPK Valve)
16" 20" 24" 26"
18/20" 24" 26" 27"
24" 28" 32" 33"
30" 34" 38" 39"
36" 40" 44" 45"
42" 46" 50" 51"
For G46 Series Burner/Log Sets
Log Set Sizes Middle Width
(SPK Valve)
Middle Width
(APK/EPK Valve)
18/20" 22" 23"
24" 26" 27"
30" 34" 35"

Enter the values below for log sets WITHOUT a valve/remote kit.
Calculation is automatic.

Front Width
Back Width Inches Max Log Width



Enter the values below for log sets WITH a valve/remote kit.
Calculation is automatic.

Front Width
Back Width Inches Max Log Width