This Millivolt (MV) model features a Continuous Pilot system where the pilot flame stays lit at all times. This model is a great choice for anyone who desires a simple heat source that does not require power for installation and operation. The Radiant Plus is the perfect choice for anyone seeking a gas insert with reliable performance and great features at a reasonable price. This standing pilot insert features a quick, easy startup and requires no power to run or operate, making it a reliable heat source for any home, and even during power outages! The Radiant Plus offers more standard features than any other insert in its class and is designed to deliver year-round comfort that can be tailored to any of your heating needs and provide warmth to living spaces ranging from 500 square feet to 1,650 square feet. The unique design of the Radiant Plus delivers optimum radiant and natural convection heat while showcasing a massive fire viewing area that’s the biggest in its class!