Umair Gaines
Running electrical wiring behind a brick fireplace is a complex task that requires careful planning and execution. It is often done to power a TV mounted above the fireplace or to provide an electrical outlet for other devices. The process involves considerations such as the type of fireplace, the availability of nearby power sources, and the need for conduit or cable management solutions. Safety is a critical concern, with some suggesting the use of non-combustible materials like metallic conduit to encase wiring. The placement of the electrical outlet and the length of the wiring are also important factors, as they can impact the overall aesthetics and functionality of the setup.
| Characteristics | Values |
|---|---|
| Materials | Bricks, concrete, mortar, conduit, cable, wire |
| Tools | Drill, junction box, extension cord, wire molding, electrical tape, pull string, fiberglass rod |
| Challenges | Fire safety, aesthetics, cost, distance from power source, National Electrical Code compliance |
| Considerations | Type of fireplace (gas, wood-burning, masonry), presence of existing electrical outlets, location of power source, surrounding furniture |
| Options | Running cable through bricks, using external power source, consulting professionals |
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What You'll Learn
Running electrical cable through brick
Planning:
Before starting any work, it is essential to plan the cable route carefully. Identify the exact location of the cable entry and exit points, taking into account any obstacles or structural features that may need to be avoided.
Drilling:
Using a suitable drill bit for brick or masonry, carefully drill a hole at a slight angle to prevent rainwater from running inside. The size of the hole will depend on the cable's thickness and whether a conduit will be used.
Conduit Installation:
It is recommended to use a conduit to protect the electrical cable and provide an extra layer of safety. Choose a conduit material suitable for your application, such as 15mm pex pipe or a flexible conduit. Ensure the conduit is slightly longer than the drilled hole to allow for secure connections at each end.
Cable Installation:
Feed the electrical cable through the conduit, ensuring there is enough slack inside the conduit to accommodate any future movement or adjustments. Do not pull the cable too tight, as this may damage the wires or insulation.
Sealing:
Use a high-quality sealant designed for cable and pipe penetrations, such as SafelySeal, to seal the conduit in place and fill any gaps around the conduit and the drilled hole. Ensure the sealant is suitable for outdoor use and will protect against water, insects, and fire.
Safety Considerations:
Always follow local electrical and building codes. Consult a certified electrician if you are unsure about any aspect of the installation. Ensure the power is turned off before making any connections to existing electrical systems.
By following these steps and taking the necessary precautions, you can safely and effectively run electrical cable through brick, ensuring a reliable and watertight installation.
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Installing a power outlet in brick
Installing a power outlet in a brick wall can be challenging, but it is possible. Here is a step-by-step guide on how to install a power outlet in a brick wall, specifically behind a brick fireplace:
First, you need to determine if there is a hollow space around the firebox or if it is solid brick. This will help you decide the best and safest way to route power so that you can have an outlet above the mantle.
If you have access to the basement, you may be able to run the wire from there, as one person did by snaking a flexible gas line and electrical cable up from the basement into the back of the firebox.
If you do not have access to the basement or if your fireplace is not set up in a way that allows for this approach, you may need to drill through the brick. This can be done with a drill and a masonry bit. You will need to pre-drill to the desired depth and clear debris as you go.
Once you have drilled through the brick, you can run the wire through the hole. At this point, you can either use conduit to protect the wire or bury it in mortar. If you choose to use conduit, you will need to cut an exit hole in the side of the fireplace to join it with the nearby outlet.
After the wire is in place, you can install the electric box. To do this, chip out a rectangle in the brick with a chisel and hammer. Apply some wet compound to the back of the box and squish it into the space, letting it dry and cement in place. Then, compound over the chiselled-out area to hide it from sight, sanding between each layer.
Finally, you can connect the wires. First, ground, then neutral (white), and finally black. Once the screw terminals are screwed down, attach the receptacle to the box and install the cover.
While this process can be challenging and time-consuming, it is possible to install a power outlet in a brick wall with the right tools and knowledge.
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Using conduit for HDMI/Audio wires
Running electrical wiring behind a brick fireplace can be a challenging task, and the approach may vary depending on the specific setup and requirements. One common method is to use conduit to protect and route HDMI and audio wires. Here are some detailed instructions and considerations for using conduit to run HDMI and audio wires behind a brick fireplace:
Planning and Materials:
Before starting the project, it is essential to plan the route of the conduit and ensure you have the necessary materials. Determine the path the conduit will take, considering any obstacles or access points. Gather the required materials, including conduit (typically metallic or PVC), connectors, wire, and any necessary tools for drilling and cutting.
Mounting the TV:
If you plan to mount a TV above the fireplace, ensure the mount is sturdy and capable of handling the weight. Consider using an articulating mount to provide flexibility in positioning the TV. Keep in mind the location of connections and how the mount may interfere with cabling. It is recommended to place HDMI and audio connections above the mount to provide more room for manoeuvring.
Running the Conduit:
To run the conduit for HDMI and audio wires, you may need to cut into the brick or concrete surrounding the fireplace. This can be a delicate process, and it is essential to exercise caution. Use appropriate tools to drill or cut through the material, creating a channel for the conduit to pass through. Ensure the conduit is securely fastened and embedded within the structure.
Pulling the Wires:
Before pulling the HDMI and audio wires through the conduit, it is recommended to attach a string or "fish" to aid in retrieval. Tie the string to a small baggie, partially inflate it, and insert it into one end of the conduit. Attach a vacuum to the other end to pull the baggie and string through. Then, tie your wires to the string and carefully pull them through the conduit.
Terminating the Wires:
Terminate the HDMI and audio wires at the appropriate connections or outlets. Ensure that power cables are handled separately from communication cables to prevent interference. Install electrical boxes and faceplates, positioning them discreetly behind a picture or on the side of the mantle.
Considerations:
When running conduit and wiring, it is essential to maintain clearances from heat sources such as chimneys, stoves, or fireplaces. Additionally, consider the future upgradeability of your system by installing larger conduit sizes to accommodate potential new cables. While HDMI and LV wires may not be legally allowed inside conduit, you can consult with local regulations and professionals for guidance.
Using conduit to run HDMI and audio wires behind a brick fireplace requires careful planning and execution. It is important to follow safety guidelines and best practices to ensure a functional and aesthetically pleasing setup.
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Hiding electrical wiring
Plan the wiring route carefully:
Before you start, map out the wiring route to avoid potential heat sources from the fireplace. Ensure the TV placement provides easy access to outlets and minimises cable length. Check local building codes and the National Electrical Code (NEC) guidelines for wiring near heat sources. Some regions may require installations to be done by licensed professionals, especially when modifying electrical setups.
Use wire covers or cases:
Wire covers or cases are an excellent option to keep your wires neat and tucked away, making them less noticeable. These covers can be painted to camouflage or accent your space, creating a complementary look. Remember that trying to DIY wiring can be dangerous, and it's always best to consult with a licensed electrician to understand what can be safely done in your space.
Bundle cords together:
Use cable ties or zip ties to bundle excess cords together. Space the ties every 6 inches along the length of the cords to keep them organised and prevent tangling. You can then place them within a cord organiser box or behind the TV.
Create a fabric or decorative cover:
If wire covers don't suit your space, you can create a fabric cover to conceal the bundled cords. Measure the length and width needed to wrap around the cords, hem the raw edges, and attach sticky-back Velcro to secure it in place. Alternatively, use decorative trim molding or picture frames to hide the wires. Run the wires behind the molding or frames and use cord clips to attach them to the wall. Paint the molding or frames to match the colour of your walls for a seamless look.
Hide wires in the mortar:
If you're comfortable with more invasive techniques, you can grind out the mortar joints and hide the cables within. Fill the gaps with a mortar and polymer mixture, but note that this method is best done during a renovation due to dust control. Another option is to run the cables along the mortar lines and use a matching colour marker to paint the wires, helping them blend in.
Use creative decor:
Strategically placed decor can help conceal cords without the need for invasive techniques. Consider placing tall plants or artwork near the fireplace to discreetly hide the wires.
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Electrical safety considerations
Electrical safety is paramount when dealing with brick fireplaces, and there are several considerations to keep in mind to ensure a safe installation.
Firstly, it is essential to determine the type of fireplace and its fuel source. If it is a gas fireplace, there may already be electrical wiring in the cavity, and you can potentially extend the electrical supply to a recessed box within the brickwork. However, this work should be done by a qualified electrician who can ensure that the work is carried out safely and in compliance with local codes and regulations.
If you are dealing with a wood-burning fireplace, the process becomes more intricate. Drilling through the brickwork to run electrical wiring is not recommended due to the potential risk of heat affecting the wires. Instead, consider fishing the wires through existing cavities or voids in the brickwork, ensuring that they are adequately protected. If drilling is unavoidable, use flameproof insulation to seal the holes and prevent any potential fire hazards.
When running electrical wiring near a heat source, always use heat-resistant materials. Insulate cables and conduits with heat-resistant foil insulation to protect against rising heat from the fireplace. Additionally, consider using non-metallic conduits, as metal conducts heat and may pose a safety risk. PVC conduits are a good alternative, but be aware that they are considered combustible, so consult with your local electrical inspector to ensure compliance with fire safety regulations.
Finally, water penetration behind brickwork is a common issue. To safeguard against this, use tarpaper or house wrap as a secondary defence to protect electrical wiring from potential water damage.
By carefully considering these safety measures and consulting with qualified professionals, you can ensure that your electrical wiring project behind a brick fireplace is carried out safely and effectively.
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Frequently asked questions
You can mount a cable receptacle on the wall next to your brick fireplace and route the cable and extension cord along the fireplace and down to their proper outlets. If you are concerned about the appearance of wires, you can use an extension cord that matches the colour of your fireplace. Alternatively, you can hide the cable receptacle behind a mirror.
If your fireplace is a gas fireplace, there is likely electrical wiring in the cavity behind it, and you might be able to extend electrical wiring up to a recessed box cut into the brickwork. This option is not cheap, as you will need to hire a fireplace/gas fitter to remove the fireplace, and then an electrician to do the electrical work.
You can run a cable from the receptacle down the gap between the bricks and the concrete block. If your chimney has an insulated liner, heat should not be a concern. Another option is to route the cable in conduit around the veneer surround to the side against the cabinet, then under the surround before the hearth is installed.
If you are planning to install wood planks over the brick, you can run the wire in a gap made with furring strips, or fish the wire through a gap behind the brick. If you are installing a TV above your fireplace, you should place it at least two feet from the opening to avoid any issues with high temperatures.
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