Lopi – Radiant Plus Large GSB Gas Fireplace Insert

Lopi Radiant Plus® Large GSB Gas Fireplace Insert

The Lopi Radiant Plus® Large GSB is built for homeowners who want reliable heat, a beautiful flame presentation, and modern energy-saving features. With its generous viewing area, realistic fire display, and advanced ignition system, it’s a great way to upgrade an existing fireplace into a dependable source of warmth.

Powerful Heating for Larger Rooms

Producing up to 33,000 BTUs, this insert can comfortably heat living spaces up to 1,650 square feet. It combines radiant warmth that you can feel directly with natural convection heat that circulates throughout the room, creating consistent comfort during cold Michigan winters.

GreenSmart® Basic Ignition System

What sets the GSB model apart is its GreenSmart® Basic system. Instead of a continuously burning pilot light, the unit automatically ignites when heat is needed and shuts down when it’s not. This saves fuel, reduces emissions, and adds convenience while keeping the fire ready at the push of a button.

Stunning Fire Presentation

The Dancing-Fyre™ burner and Classic Log Set provide a lifelike fire with glowing embers and realistic flame movement. Its large ceramic glass window — over 450 square inches — offers a dramatic view of the fire, making it a focal point in any room.

Customizable Design Options

The Radiant Plus® Large GSB can be tailored to match your home’s style. Choose from a variety of face designs, trims, and firebacks to create the look you want. Optional accessories, like a convection fan or remote control, enhance comfort and convenience.

Efficient & Flexible Operation

With efficiency ratings approaching 88%, this gas insert makes excellent use of every BTU. It also features a flame turndown option, letting you reduce heat output by up to 50% on milder days while still enjoying the fire’s ambiance.

Why It’s Perfect for Michigan Homes

• • Energy-saving ignition that only uses fuel when needed

  • Large heating capacity for mid- to large-size living spaces

  • No wood storage or ash cleanup — just clean, reliable gas heat

  • Customizable looks to complement any style of home

  • Optional fan and remote for added comfort and control