Measuring Gas Logs
It's important to buy the right size log set - improper sizing can interfere with proper drafting of your fireplace. If the logs are too large, the unit will not burn as efficiently and the size may hamper the proper operation of the control system. A log set to small will diminish the beauty of your hearth setting. Look below to see the parts of the fireplace you'll need to measure before purchasing your log set..
Sizing and Specifications
By measuring the front width, back wall, depth and height of your firebox, you can determine what size log set you will need. The chart below can be used as a guide to select correct log set size. Log set sizing charts vary somewhat by manufacturer so you should check with your hearth dealer for the chart that matches the manufacturer you've selected.
Sizing Notes For Vented Sets
If you install a safety pilot kit, add 3" to the width of the firebox opening and front dimension of the log set. If you install a remote system, add 6" to the width of the firebox opening and front dimension of the log set.
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Vent-Free Gas Logs
Vented Gas Logs |
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| Log Size |
Minimum Front Opening |
Minimum Measurements |
Log Set Average BTUs | |||
| Rear |
Height |
Depth | ||||
| 12" | 15" |
13" | 18" | 9" | 25,000 | 25,000 |
| 16" | 21" |
19" | 18" | 12" | 50,000 | 30,000 |
| 18" | 27" |
20" | 18" | 13" | 75,000 | 40,000 |
| 20" | 27" | 20" | 18" | 13" | 75,000 | 40,000 |
| 24" | 33" | 24" | 18" | 14" | 90,000 | 50,000 |
| 30" | 39" | 30" | 18" | 14" | 90,000 | 65,000 |
| 36" | 45" | 36" | 18" | 14" | 120,000 | 90,000 |
| 42" | 48" | 42" | 20" | 18" | 150,000 | 105,000 |
