However if your electrical appliance explicitly prohibits the use of any extension cord then I advise against it. However, if you have to use an extension cord, the cord must be Number 14 AWG minimum size and rated no less than 1875 Watts. However, if an appliance has a three-pronged plug, you’ll need to plug it into a three-pronged (aka grounded) extension cord. Connect a 4-Prong Cord (4-Prong Only) Insert the end of the 4-prong cord through the hole in the … One last note, don't try to conceal the cords under the rug to hide it as this is also a fire hazard and dangerous if you have little hands or pets around. It’s also a good idea to wrap the connection in plastic to prevent rain water from making its way inside. Since we launched in 2006, our articles have been read more than 1 billion times. Here’s what you should know about extension cords and when they can and can’t be used. However, many outdoor extension cords don’t provide a water-tight seal where the plug is, since there’s really no way to achieve that in the first place. Whether by choice or due to safety concerns, many homes have an unused fireplace and mantel surround that can be converted into a functioning feature of the home by inserting an electric fireplace log set. Once installed (plugged in) you will hardly notice the cord. RELATED: The Different Kinds of Electrical Outlets You Can Install In Your House. What you don’t want to do is use a light-duty extension cord that isn’t rated for the power draw a space heater pulls—that’s asking for trouble. The moment you set eyes on different extension cords, you’ll notice one glaring difference: the plug will either have two or three prongs. The wires inside an extension cord come in all different thicknesses, which is denoted as “gauge”. The concern is that an undersized or unsafe type of insulation found with most general purpose extension cords is unsafe and I totally agree. So it’s still recommended that you be careful around wet areas and elevate the plugs if there’s any standing water in the area. This is why you hardly ever see light-duty extension cords longer than 25 feet or so, because the voltage would die down before it reached the appliance, resulting in devices not getting enough power and possibly creating safety hazards. You will need a new UL Listed 40 AMP 4-Wire Cord 4’ long or 3-Wire Cord 4’ long. Is it safe to install a larger sized circuit breaker. Just to ignite the flame, and some digital controls if … However there are specific use cords which state they are designed to be used for devices such as microwave ovens. These can be used safely with items that don’t draw a lot of power (lamps, fans, clocks, etc.). Lastly, the extension cord should not be longer than 20 feet. In general, the thicker the cord is (gauge-wise), the longer it can be (up to around 150 feet with the thickest cords).