DETERMINE PROPER FITTING GAS LOGS
Before you choose a gas log set, measure the usable space inside your firebox. The goal is not to record the largest physical dimensions you can find. The goal is to understand the space actually available for the burner, logs, valve, and control system.
Measure the inside opening of your firebox—not the existing logs—and record all four dimensions before choosing a set.
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Measure both widths
Record the front opening width and the rear width at the back of the firebox.
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Check height and depth
Measure the usable interior height and the floor depth from front to back.
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Allow room for a safe fit
Your burner and log set should be smaller than the firebox and meet the manufacturer’s clearance requirements.
The four usable firebox dimensions
Measure inside the firebox only. A fireplace can look large from the room and still have a smaller usable area once taper, frames, valves, and pipe locations are considered.
Front opening width
Measure the inside width across the front opening of the firebox, from the usable inside edge on one side to the usable inside edge on the other.
Rear width
Measure the width across the back of the firebox at the narrowest usable point.
Height
Measure from the firebox floor to the lowest point at the top of the opening.
Depth
Measure from the front of the usable firebox floor straight back to the rear wall.
Compare your measurements with the product page
After you measure, compare your numbers with the minimum fireplace dimensions listed on the product page for the specific gas log set.
Let AGW review your fireplace before you choose
If your fireplace is unusual, your measurements are close to a product minimum, or you are not sure how to account for an obstruction, send photos and measurements for review before you order.