The second step you need to make is to make sure you have clearance requirements, or the basic requirements needed to place an insert. For example, an electric fireplace insert will need 2 inches from the top of the insert frame to a mantel board and an inch from the back and the sides of the insert to the walls surrounding it.
Cover plates are especially important since they prevent substances such as water from entering, so your third step is to cover the chimney with a cover plate so that it still allows smoke to get released.
A damper is a plate that stops and regulates the air flow within a duct or a chimney, so sealing it off would be essential so as to prevent air infiltration. All inserts, whether they are electric or wood-burning, need separate requirements. For the electric insert, you will need a power outlet, for the wood-burning you will need a flue liner, and gas inserts require an exhaust pipe and a gas line. After you have chosen the fireplace, installed its requirements, all you need to do now is to attach the box in place so that it can start heating up the room.
The frame is usually said to be optional, depending on which type of insert you have used. Some frames are used merely to decorate the room as well as help the fireplace blend in, if that is what you are looking for. Some inserts can be installed by setting the pipe into position, sliding the unit back in, and then pulling the pipe into the flue collar from inside the stove.
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Arrange to have this done prior to installation. Many modern fireplace inserts and stoves require a FULL relining of the existing fireplace chimney using stainless steel piping. This pipe is available in both flexible and rigid lengths.
Current NFPA codes require that the area in square inches of the fireplace flue cannot be more than 3x the area of the appliance stove flue of the interior chimney and 2x the area of the exterior chimney.
Note that it is possible that BOTH owners manuals, local officials and fireplace installers will allow some wiggle room on these numbers. If the chimney is not lined with clay tile or in poor condition with lots of cracks and other problems, you may have to go further than a simple lining. In these cases, the liner must be insulated with a special wrap.
The insulation holds the heat into the liner and prevents it from soaking through the masonry and overheating nearby wood framing members. Another method for repair is a poured-in liner. There are also products and treatments which can be used to restore and waterproof the exterior masonry and crown cement top of your chimney structure if it needs repair. If you have decided to do a full chimney relining, you must decide exactly what type of stainless materials you will use to do so.
There are also many choices for liners — various thicknesses and types of flex liner are available, as well as rigid. All things being equal, rigid makes for a better installation because it is thicker and has a smooth inner wall better smoke flow — less creosote. A block off plate which sits in the upper area of the fireplace is suggested for the most efficient insert installation. This provides a positive seal so that room air does not get sucked up the chimney along with the stove exhaust — and also serves to help block cold downdrafts when the stove is not in use.
In some cases, this hearth and the existing hearth must also meet certain R or K insulation values. These values are specified in the owners manual and are required to avoid overheating of the combustible materials underneath the hearth. Read some of our other articles on hearth clearances and construction for tips on building or buying an extension. All of your planning and materials come together for the big day when you or your professional installer actually line the chimney and place the insert.
As with many projects, the more planning and measuring you have done beforehand the less likely you are to run into unanticipated problems. Please see Part 2 coming soon of this series for some pics and descriptions of the actual fireplace insert installation.
You must be logged in to post a comment. Log in. Recent Activity. Wiki Pages Latest activity. Media New media New comments Search media. Search Everywhere This blog. Search titles only. There are often fireplaces for sale on the online classified or Facebook marketplace. Once the fireplace was purchased, Steve got online and downloaded the manual and installation guide for this particular model.
This gave us all the information we needed for installation. Begin by locating where the fireplace should be installed. You will want it to be visually pleasing. Is it important to be symmetrical in the room.
First, begin by locating where the studs are in the exterior wall. Once all the studs are located, measure the dimensions of the fireplace, centering it between the 2 windows. An oscillating multi-tool with a straight blade works perfectly to cut the drywall. This tool easily cuts through the drywall. However, if you do not have one you could also use a drywall saw or utility knife.
Once the entire area was cut from the drywall, another small square was cut out. This gave us a place to grab onto the drywall to pull it off. As you can see, this was a pretty exciting day for the 2 little ones too. They were so eager to jump in and help! There is something so exciting about taking down a wall! These two thought the fireplace key was the coolest place to play. Once the drywall is removed, cut and remove the baseboard. The reciprocating saw made easy work of this job.
This information was found in the installation manual. The fireplace has a blower, therefore we needed a power line run to the fireplace. We were able to run the power lines up from the basement. A television will also be installed above the fireplace, so a power line was run for that as well. We hired a professional to come in and run the gas line over to the fireplace. The basement is unfinished, so this was relatively easy, at least for a professional. We are now ready to attach the direct vent pipe.
This is a double wall pipe, the inner pipe sends exhaust fumes outside of the home while the outer chamber brings in fresh air from outside for the combustion. This type of operation is very efficient much more so than a traditional gas fireplace. We purchased the pipe from a local fireplace supplier. It is installed simply by aligning the notch, sliding the pipes together and twisting to secure.
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