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Lopi Radiant Plus Large

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Lopi Radiant Plus large gas insert installed in a tile fireplace surround in a living room.
FUEL
GAS/LP
SIZE
L
HEATED SQ. FT.
1650

The Radiant Plus Large GSB is built for homes up to 1,650 sq ft, delivering radiant and convection heat with efficiency and ease. Producing up to 33,000 BTUs, it offers reliable warmth and a wide fire-viewing area that enhances the room with a natural, inviting glow. With GreenSmart™ technology, multiple face and trim options, and dependable performance even during power outages, this insert blends modern features with lasting value.

product specifications:

FUEL:
GAS/LP
SIZE:
L
HEATED SQ. FT.:
1650
Heating Capacity:
Up to 1,650 Square Feet
Maximum BTU/HR Input:
33,000 (NG), 31,000 (LP)
Minimum BTU/HR Input:
17,000 (NG) 15,500 (LP)
Steady State Efficiency:
Up to 87.81% (NG) Up to 87.94% (LP)
P4 Canadian Efficiency:
Up to 79.40% (NG) 81.10% (LP)
Dimensions:
23-1/2” H, 30-1/4” W (Front), 23-1/2” W , 14-7/8”D
Glass Viewing Area:
Ceramic Glass, 27-3/4″ W x 16-1/4″ H, 451.7 Sq. In.
Lopi Radiant Plus large gas insert installed in a stacked stone fireplace surround.
Lopi Radiant Plus large gas insert in a painted fireplace surround in a modern living room.
Woman reading by a Lopi Radiant Plus large gas insert fireplace.
Lopi Radiant Plus large gas insert installed in a built-in fireplace surround with wood mantel.

frequently asked questions

Per the owner's manual, the Radiant Plus Large insert has an approximate heating capacity of 500 to 1,650 square feet on both natural gas and propane. Capacity will vary with floor plan, insulation, and outside temperature.

The manual lists a maximum BTU input per hour of 33,000 on natural gas and 31,000 on propane, with variable-rate heat output.

Per the owner's manual, the insert requires a minimum fireplace height of 23-3/4 inches, a minimum width of 31 inches, and a minimum depth of 15 inches, with a 0 inch hearth extension. It installs in a code-conforming masonry or tested and listed factory-built (metal) wood-burning fireplace.

Yes. The manual lists a battery backup system that keeps the insert working during power outages. The circulation blower is optional, and the pilot can be set to on-demand or intermittent.

The heater is shipped in natural gas (NG) configuration but may be converted to propane (LP) using a conversion kit with the orifices and LP regulator included.

Per the owner's manual, the Travis Industries Limited 7 Year Warranty covers this gas appliance for the original purchaser: parts and labor in years 1 and 2, parts and labor on covered components in years 3 through 5, and parts only in years 6 and 7.

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