Replacing Wood Burning Fireplace with Gas Insert
A complete guide to upgrading your old wood-burning fireplace with a modern, efficient gas insert. Learn about the benefits, installation process, and how to choose the right model for your home.
View Recommended Gas InsertsWhy Upgrade? Replacing a wood burning fireplace with a gas insert transforms an inefficient, labor-intensive feature into a clean, convenient, and highly efficient heat source. This guide will walk you through every step of the decision-making process.
Is a Gas Insert Right for Your Home?
If you have an existing wood burning fireplace that you rarely use because of the mess, smoke, and effort required, replacing it with a gas insert is a smart and rewarding upgrade. A gas insert is a self-contained unit that fits into your existing fireplace opening, converting it into a clean-burning, controllable heat source. This transformation allows you to enjoy the ambiance and warmth of a real fire without the hassle of chopping wood, building fires, and cleaning up ashes.
This guide is designed for homeowners who are in the research phase and are seriously considering this conversion. We will explore the compelling reasons to make the switch, the different types of gas inserts available, a step-by-step overview of the installation process, and key factors to consider when choosing the best model for your space. By the end, you will have a clear understanding of what it takes to replace your wood burning fireplace with a gas insert and be ready to make a confident purchasing decision.
Top Benefits of Converting to a Gas Insert
The decision to switch from wood to gas is driven by a desire for convenience, efficiency, and cleanliness. Here are the primary advantages you can expect.
Advantages
- Convenience: No more hauling wood or cleaning ashes. Start a fire with a flip of a switch or a remote control.
- Efficiency: Gas inserts are significantly more efficient than open wood fireplaces, converting more fuel into usable heat. Many are designed as zone heating solutions, allowing you to warm the room you're in without heating the whole house. Learn more in our zone heating with fireplace guide.
- Cleanliness: No soot, ash, or smoke. Gas burns cleanly, which means less dust and a healthier indoor environment.
- Consistent Heat: Enjoy steady, controlled heat. Many models come with thermostats and remote controls, giving you precise temperature management. See our fireplace thermostat guide for more details.
- Safety: Modern gas inserts are equipped with safety features like oxygen depletion sensors and sealed combustion chambers. Our oxygen depletion sensor article explains more.
- Aesthetics: Gas inserts offer realistic flames and logs, providing the cozy ambiance of a wood fire without the work. You can find models with highly realistic flames, as detailed in our guide to the most realistic electric fireplace (for a similar effect in electric models).
Considerations
- Upfront Cost: The initial investment for a gas insert and professional installation is a significant consideration. For a detailed breakdown, see our fireplace cost breakdown.
- Fuel Dependency: You will need a natural gas line or propane supply. If you don't have one, the cost of running a line can add to the project. More information is available in our gas fireplace without a gas line article.
- Venting Requirements: Most gas inserts require venting, which can be direct vent or through an existing chimney. Understanding the options is crucial. Our venting options for gas fireplace inserts guide is a great resource.
- Less "Authentic" than Wood: While gas flames are realistic, some purists feel they lack the genuine crackle and smell of a real wood fire. For an alternative, consider an ethanol fireplace insert.
Choosing the Right Type of Gas Insert
Not all gas inserts are the same. The two main categories are based on how they vent, which affects installation flexibility and efficiency. When you decide to convert a wood fireplace to gas, understanding these options is key.
| Feature | Direct Vent Gas Insert | Ventless (Vent-Free) Gas Insert |
|---|---|---|
| Venting | Uses a sealed, double-wall pipe that draws in outside air for combustion and exhausts byproducts outside. | No external venting required. Burns gas so cleanly that emissions are considered safe for indoor air. |
| Efficiency | Highly efficient (typically 70-90%+) because it doesn't use indoor air for combustion and loses less heat through the vent. | Very high efficiency (up to 99%) as almost all heat is released into the room. However, they produce some humidity. |
| Installation | Requires a vent to the outside, often using the existing chimney as a chase. Slightly more complex. See our venting requirements for gas fireplace insert guide. | Easiest to install as no venting is needed. Ideal for rooms without an existing chimney or where venting is difficult. Check our ventless fireplace safety guide. |
| Best For | Homeowners wanting maximum efficiency, consistent performance in cold climates, and no indoor air quality concerns. | Those who want a simple, flexible installation in any room, especially where a vent is not feasible. Also known as a ventless gas fireplace insert with blower. |
| Indoor Air Quality | Excellent, as all combustion byproducts are sent outdoors. | Good, but they release some moisture and can be a concern for those with severe respiratory issues. Proper sizing is critical. |
While direct vent inserts are generally preferred for their efficiency and air quality benefits, ventless models offer unmatched installation flexibility. It is also important to distinguish between venting vs ventless gas fireplace to make an informed choice. If you are replacing an existing unit, you may find our article on replacing a wood burning fireplace with a gas insert helpful.
The Installation Process: A Step-by-Step Overview
Converting your wood burning fireplace to gas is a job best left to a professional, but understanding the process can help you plan. This is a summary of the typical steps involved in an installation.
- Evaluation and Measurement: A certified technician will inspect your existing fireplace and chimney to ensure it's suitable for a gas insert. They will take precise measurements of the firebox opening and assess the venting configuration. This is similar to the process outlined in our installing gas fireplace insert in existing fireplace guide.
- Gas Line Installation: If you don't already have a gas line, a licensed plumber will need to run one to the fireplace location. This is a critical step that must be done by a professional. More details can be found in our gas fireplace installation requirements article.
- Insert and Venting Setup: The new gas insert is positioned into the existing firebox. For a direct vent model, a liner or vent pipe is run up through the existing chimney. For a ventless model, the unit is simply connected to the gas line.
- Connection and Sealing: The gas line is connected to the insert, and all connections are checked for leaks. The surround panels are installed to cover the gap between the insert and the fireplace opening, creating a finished look. If you're handy, you might consider a DIY gas fireplace project, but for safety, professional installation is always recommended.
- Testing and Demonstration: The technician will test the unit, check the flame appearance, and ensure all safety features are working. They will also show you how to operate the controls, remote, and thermostat.
Professional installation is crucial for safety and to ensure the warranty on your new gas insert remains valid. For a broader overview, see our fireplace installation guide overview.
Key Factors When Choosing a Gas Insert
With so many models on the market, it's important to know what separates a good insert from a great one. Use these criteria to guide your research.
- Heating Capacity (BTU): Match the unit's BTU output to your room size. A unit that's too powerful will cycle on and off frequently, while one that's too weak won't heat effectively. Our heating capacity (BTU) guide and how to size a fireplace article can help you calculate your needs.
- Efficiency Rating: Look for a high Annual Fuel Utilization Efficiency (AFUE) rating. The higher the rating, the more efficient the unit, which can lead to lower running costs. For context, compare with our article on most energy-efficient fireplace types.
- Features: Consider convenience features like a remote control, a programmable thermostat, and a blower fan to circulate heat. A gas fireplace insert with blower and thermostat offers the ultimate in comfort and control. Also, consider a fireplace thermostat guide for more info.
- Style and Aesthetics: Choose a model with a flame presentation that you find appealing. Options include realistic logs, contemporary fire glass, or ceramic stones. For a modern look, consider a linear gas fireplace idea. The size and design of the surround and front also play a big role in the final look.
- Brand and Warranty: A reputable brand will offer a solid warranty, giving you peace of mind. Research brands known for reliability and good customer support.
Understanding the Investment
The financial outlay for this project has several components. It's wise to get a full quote from a qualified installer to understand your total investment. The overall expense can be broken down into the unit itself, installation labor, and any necessary modifications to your home. You can find a more detailed breakdown in our cost of converting wood burning fireplace to gas article.
While the upfront cost is a consideration, it's also important to think about long-term savings. Gas inserts are highly efficient, and their running costs can be lower than a traditional wood fireplace. For a comparison of fuel types, see our guide on gas vs electric fireplace running costs. The investment also adds value and desirability to your home, as discussed in our fireplace home value article.
