10 Best Gas Fireplace Inserts 2025 in the United States

The Duluth Forge Ventless Stainless Outdoor Gas Fireplace Insert is an attractive choice for those looking to add warmth and style to their outdoor spaces. With a BTU rating of 24,000, it offers a solid heat output suitable for medium-sized areas. The ventless design is a key feature, allowing for flexible installation without the need for a chimney or flue, which is convenient for many homeowners. It uses a versatile fuel system, operating on either natural gas or propane, adding to its adaptability to different settings.

The manual ignition system, along with the battery-assisted Piezo igniter, ensures a straightforward start-up process, although some users might prefer an automatic ignition system for ease of use. The aesthetic appeal is enhanced by its sleek stainless steel construction and the inclusion of reflective crystal glass media, which creates an eye-catching flame display. Its compact dimensions make it a good fit for spaces where room is a concern, though the slim profile may limit the breadth of the heat it can radiate.

In terms of efficiency, while no specific rating is provided, the vent-free nature often implies better heat retention within the space. However, potential buyers should be aware of the manual control limitations, which might not offer the precise temperature regulation found in more advanced models. Assembled in the USA, the unit promises quality craftsmanship with a focus on durable materials. This fireplace insert is particularly suited for those who appreciate style and flexibility in their outdoor heating solutions, but it may not satisfy users seeking advanced technological features or automatic operations.

The Duluth Forge Dual Fuel Ventless Gas Stove, Model FDSR25, is a versatile and efficient choice for those looking to add a gas fireplace insert to their home. With a 26,000 BTU rating, it can effectively heat spaces up to 1,200 square feet, making it suitable for medium-sized rooms. Its dual fuel technology allows for flexibility in using either natural gas or liquid propane, which is ideal for different homeowner needs. The vent-free design adds to its energy efficiency, rated at 99.9%, meaning it doesn’t require an outside duct or chimney, thus conserving energy and reducing installation hassles.

A key feature is the included thermostat remote control, allowing users to easily set their desired temperature, enhancing user convenience. The six hand-painted ceramic logs add a realistic and stylish touch that can enhance the aesthetic appeal of any room. Safety is a priority with its push-button Piezo ignition and built-in oxygen depletion sensor that automatically shuts off the stove if unsafe levels of carbon monoxide are detected.

This model is a solid choice for those who value efficiency and safety in a ventless gas fireplace insert, especially in homes without existing venting solutions. Potential buyers should be prepared for some level of assembly and ensure the stove's dimensions align with their designated space.

The Empire Comfort Systems Deluxe 36" Vent-Free Firebox is designed for those looking to enhance their indoor heating experience without the need for venting. One of its main strengths is its vent-free design, allowing for installation in spaces where traditional vented units would not work, which offers versatile placement options. With a solid heating capacity of 5,118 BTUs, it can comfortably heat areas up to 857 square feet, making it suitable for larger rooms like living areas or bedrooms.

Another attractive feature is its fully customizable design. Users can choose from various liners, doors, louvers, frames, and mantels, allowing them to create a fireplace that fits their style and decor. The solid construction, highlighted by hem-bent seams, ensures a reliable and efficient unit with minimal visible fasteners.

In terms of aesthetic features, the black finish and contemporary design may appeal to modern homeowners, but aesthetic preferences are subjective. It is important to ensure that this product fits the intended space dimensions and heating needs. If you’re looking for a stylish, flexible fireplace insert that is easy to install and efficient, this unit could be a good choice, provided you are aware of its limitations.