A gas fireplace in the home offers the home numerous benefits. The most notable one would be that a gas fireplace does not need logs of wood to make a fire and warm the home. It is a stylish addition to the home for any homeowner who values style alongside functionality.

Apart from not making use of wood logs, a gas hearth provides continuous heat for the home, and it is easier to keep clean. Since the gas hearth does not make use of wood logs, the mess made by wood usually like ashes are absent and do not need to be cleaned up. This action reduces the amount of soot buildup on your fireplace door.

Gas fireplace installation may not be pocket friendly, but in this piece, we will be showing you a simple and easy to follow DIY on how to install your gas hearth.

Gas fireplace DIY installation guide


Budget-Friendly Gas Fireplace DIY Installation Guide stock.adobe.com
Photo by stock.adobe.com

Before you get started with the DIY gas fireplace installation, you need tools and materials. Below is a list of things you will need. 


  • Acrylic Caulk 
  • PU Caulk
  • Silicone Caulk
  • Joint Compound
  • 9” Vent Pipe
  • Drywall (0.5x48x96”)
  • Sandpaper (100-Grit)
  • Corner Beads
  • Interior Firestop
  • Metal Nail Plates
  • Heat Shield Flashing
  • Gas Fireplace
  • 2 Lumber (2x10x12”)
  • Straight Pipe
  • Painted/Textured Finish
  • Plywood (0.75x4x4”) 

Tools Required 

  • A Caulk Gun
  • A Circular Saw
  • Hammer
  • Cordless Drill
  • Brad Nail Gun
  • Utility Knife
  • Roller Tray
  • Mud Pan
  • Drywall Sander
  • Drywall Milter or Circular Saw
  • Knockdown Knife
  • Paintbrush
  • Flashlight
  • Screw Gun
  • Drill Bit Set
  • Level
  • Ear Protection
  • Stud Finder
  • Roller Sleeve
  • Dust Mask
  • Knee Pads
  • Safety Glasses
  • Rasp
  • Tin Snips
  • Measuring Tape
  • Sanding Pole
  • T-Square
  • Socket Set
  • Gloves
  • Sanding Block

All of these listed above should get you started quickly. 


Follow the steps below to DIY gas fireplace installation in your home. 

Step 1: Choose a Location and Take Measurements

Budget-Friendly Gas Fireplace DIY Installation Guide  istockphoto.com
Photo by istockphoto.com

In your home, choose a specific location where you would like to build a fireplace. When you have, take measurements with tape, using the dimensions given in the installation guide. Make sure you correctly mark up the place; if you can’t, call a plumber to do it for you. 

Step 2: Build a Platform, Set and Install Chimney Pipe

Once you have the dimensions taken, you can build a platform with nails, plywood, and hammer. A standard fireplace platform has a height of 11.5 ins. When you are done, you should set it up in the location you have picked. Also, you will need exhaust from the fireplace to go out; therefore, you need to install the first vent pipe over a starting collar and finish the vent pipe in a 90-degree angle to the wall. You will have to frame an opening, install a firestop opening, and use a caulking gun on the firestop. Then, the firestop vent can be installed. 

Step 3: Build Closure and Mantel

Budget-Friendly Gas Fireplace DIY Installation Guide istockphoto.com (2)
Photo by istockphoto.com

With the fireplace platform and vent set up already, you will need to build a closure around it. This closure is like a wall to make it look better. Here, you use a wood frame and screw with metal tabs. Also, you should screw in a mantel frame in position. 

Step 4: Build Hearth and Columns – After you have the fireplace set up, what you need to do is build hearth and columns. The hearth should have 2×10 double-layers with the plywood as well as a 2×10 frame. The columns are fixed into the frame built with the help of drywall screws. Place the whole structure into the fireplace. 

Step 5: Use Nail on the Corner Bead

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With everything set on the inside, there are probably going to be outer corners left. These corners need to be covered if you want to use them effectively. Drywall corner beads are perfect for covering them. Therefore, cut where two or more corner beads meet and nail them on the corners, using 1.25” ring-shank drywall nails. 

Step 6: Tape Joints – A structure like this needs to be kept stable for a particular time; therefore, apply paper tape to the joints so that they don’t fall apart. You can as well sand the corners or fill them with beads. With time, there will be an adjustment to form.  

Step 7: Paint the Fireplace

Budget-Friendly Gas Fireplace DIY Installation Guide edswoodshed.net
Photo by edswoodshed.net

Finally, make the fireplace a lot beautiful by painting or applying texture. You could make use of a premixed acrylic stucco texture. However, you need to prime and sand the walls before Paint is applied. Use foam to smoothen the surface and make it pleasant. 


Budget-Friendly Gas Fireplace DIY Installation Guide istockphoto.com (3)
Photo by istockphoto.com

In the U.S.A, you may wonder how much it will cost to install a gas fireplace. Usually, you should finish fixing the fireplace in a day. Other processes, such as framing, dry walling, painting, and texturing, should run you through the weekend. Well, you need to consider some expenses, if you aren’t so good with hand-jobs like carpentry and dry walling.

  • Wood materials for dry walling, framing and Paint cost about $175 or more. 
  • Vent parts and other materials should cost about $2,000
  • Carpentry and artistry (plumber, etc.) should be around $1000

Overall, you should have a budget of $3,500 to $4,000 to install a DIY gas hearth in your home. 


There are a few things you could do for yourself, that would be much better instead of buying. Gas Fireplace is one of the easiest DIY, only if you are skilled in certain areas, such as carpentry and dry walling. You may even want to try for the first time, from the steps described above to gas fireplace installation in your home. Overall, you will be saving yourself some money.