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Dimplex Multi-Fire Slim Built-in Linear Electric Fireplace

The Slim Linear fireplace offers a sleek and space-saving design, with an impressively slim depth of only 4 inches. This makes it an excellent choice for smaller living spaces such as condos or townhouses. What sets the Slim Linear apart is its ability to sit flush into 2" x 4" framing, providing a game-changing and exclusive feature in the industry. Despite its compact size, this fireplace does not compromise on visual appeal. It boasts a slender fit and a generous viewing area, ensuring that it is both functional and captivating to behold.


  • Multi-Fire® SL Flame Effect: Large, high-contrast flames feature a multi-layered color effect that creates a sense of depth.

  • Media Accent Colors: Choose from a variety of brilliant color themes or cycle through a range of colors using the custom mode, selecting the hue of your choice.

  • Customizable Flame: Choose from orange, blue, and yellow flames or from combined multi-color flame themes. Adjust the flame speed to create the perfect atmosphere for your mood or room. Color settings can be controlled independently or combined in one of the seven preset options.

  • Full Viewing Area: Despite its slim size, this design offers an impressive viewing height of 14 inches and includes mirror technology that creates a grand illusion of depth.

  • Slim Design: The fireplace can be installed flush into a 2"x4" wall for a seamless look or wall-mounted with the included bracket for quick and easy installation.

  • Flush Framing: The removable factory-installed trim allows the finish material to be placed right to the edge, resulting in a clean and flush finish.

  • Ambient Light Sensor: The firebox light automatically adjusts to suit the room's lighting conditions, from day to night.

  • Powerful Heating: The fan-forced heater provides on-demand heat for up to 1,000 square feet. It can be used as primary or secondary heat depending on room requirements.

  • Heat Management: Enjoy the ambiance of a fire during warmer months by deactivating the heater via the controls. Alternatively, during installation, the heater can be hard disconnected in areas where heat is not required.

  • Smart Self-Diagnostics: The fireplace is equipped with integrated self-diagnostics, which simplifies troubleshooting and improves service.

  • Hardwire or Plug-in: The fireplace can be hardwired to a 120V power supply or optionally be used with a plug-in cord kit (PLFXSPLUG) for a convenient plug-and-play installation.


Model Multi-Fire Slim 36" Multi-Fire Slim 42" Multi-Fire Slim 50" Multi-Fire Slim 60"
Wattage 1500 1500 1500 1500
Voltage 120 120 120 120
BTU 5118 5118 5118 5118
Product Height (in) 19.64 19.64 19.64 19.64
Product Depth/Length (cm) 9.8 9.8 9.8 9.8
Product Width (cm) 94.62 109.86 130.18 155.58
Product Height (cm) 49.89 49.89 49.89 49.89
Product Weight (kg) 26.2 29.4 33.95 39.49
Timer 1 1 1 1
Remote Control Yes Yes Yes Yes
Built-in Thermostat Yes Yes Yes Yes
Automatic Shut-Off Yes Yes Yes Yes
Power Source Electric Electric Electric Electric
Warranty 2 yr limited 2 yr limited 2 yr limited 2 yr limited
Product Width (in) 37.25 43.25 51.25 61.25

About Dimplex

Dimplex is a leading company in the electric heating solutions and fireplace industry. Since its establishment in 1973, Dimplex has been providing energy-efficient and environmentally-friendly products to customers worldwide. Their products are designed to offer optimal comfort and convenience to customers, while reducing their energy consumption and costs.


One of Dimplex's main advantages is their commitment to innovation. They continuously invest in research and development to create new technologies and designs that improve the performance and energy efficiency of their products. As a result, Dimplex has received numerous awards and accolades for their innovative solutions.


Another key advantage of Dimplex's products is their versatility. They offer a wide range of products suitable for various settings, including electric fireplaces, electric stoves, baseboard heaters, and wall-mounted heaters. Additionally, their products can be controlled with a mobile app, which allows customers to manage their heating preferences from anywhere at any time. This level of control and convenience has made Dimplex a popular choice for both residential and commercial customers.



In the event of a problem with a product, we advise customers to contact the manufacturer's technical support lines to identify the issue and obtain any necessary part numbers. Having part numbers and serial numbers on hand is crucial for a successful call and throughout the warranty process. While we encourage troubleshooting and information gathering to file a warranty claim, we do not recommend initiating a claim directly with the manufacturer. Instead, please use our web form to submit a warranty claim, and we'll take care of the rest.


Although all warranties are subject to the manufacturer's terms and conditions, submitting a claim directly to them can hinder our warranty team's ability to assist you through the process. We strive to support you and your customers in the best possible way, and our experience allows us to ensure a quick and transparent warranty process. Trust us to submit any claims on your behalf, as we are committed to providing the most efficient and effective service.


To begin your warranty claim, simply fill out our warranty claim web form.  It is important to provide all the required information in the form, as these fields are mandatory and necessary for the manufacturer. After submitting the form, our customer service team will process it and forward it to the warranty department. If any further information is required, our team will contact you to request it.


Warranty Claim Process


1. Reach out to the manufacturer’s tech support to troubleshoot the issue and gather any applicable part numbers, case numbers, etc.


2. Complete and submit the warranty claim web form with all required information.


3. Our warranty team submits the claim to the manufacturer on your behalf and sends confirmation that it was sent.


4. We will provide any updates received from the manufacturer such as ETAs and tracking info.


What is the estimated time for receiving a replacement part?

Lead times can differ, particularly if items are out of stock. In such cases, the manufacturer may directly ship the product to the end customer. However, if drop-shipping is not an option, the item will be shipped to the dealer or distributor. If warranty items arrive at our warehouse, we will dispatch them as soon as possible.


Is it possible to receive a replacement log set if the received one has a broken log?

Typically, manufacturers provide individual log replacements, so there is no need to purchase a new log set entirely. If the product appears to be damaged upon delivery, it is advisable to refuse the shipment. This will change the nature of the problem from a warranty issue to a freight issue.


Is it recommended to have a licensed professional carry out the installation of my product?

Certainly, we strongly advise engaging a licensed professional to install and maintain your product. In some cases, manufacturers may not honor warranties or claims if the product was installed by an unlicensed individual.


Is it possible to file both a freight claim and a warranty claim for the same product?

No, it is not possible to file both a freight claim and a warranty claim for the same product. If there is visible or hidden damage to the product, it should always be reported as a freight claim within 48 hours of its arrival at your facility. If the problem is due to a defective part, then it will be considered a warranty issue. However, certain circumstances may warrant special exceptions, but it is unlikely that both a freight and warranty claim will be necessary simultaneously.



Return Policy

To initiate the return process, customers must file an RMA within 60 days of the purchase. The RMA form must be filled out in its entirety and accompanied by pictures of the item(s) being returned. After the RMA form is submitted, our customer service team will begin the return process.


Could you explain the process of obtaining an RMA (Return Merchandise Authorization)?

Return authorizations must first be approved. Eligible items for return must be in their original packaging and in a new, re-sellable condition.


Is there a re-stocking fee?

Yes. If eligible for a return, a 20% re-stocking fee will apply.


What if an RMA is issued by the manufacturer for a warranty?

Some manufacturers will request that warranty claim items be returned directly to them. In this instance, we will coordinate with the manufacturer and we will provide both the RMA and the BOLs to you.


If I refused damage product, will I need an RMA?

No. If product is refused due to damage, the freight claim will be automatically initiated by the carrier and returned. Please alert our customer service team immediately so we can coordinate a replacement shipment or issue a credit.


Is an RMA the same as a credit?

No. An RMA is simply documenting and approving the return of merchandise. Upon approval, credits will be issued and are handled on a case-by-case basis. For example, RMAs received in unsellable condition are not eligible for credit. To avoid running into a situation like that, it is best to ship your return in a way that minimizes damage. If the product is eligible for credit, it will be applied to the original invoice.


Can I return obsolete or special-order items?

No. Special order items cannot be canceled or returned once they have been ordered from the manufacturer. Obsolete or discontinued product cannot be returned once purchased.


What happens if I get an approved RMA but I don’t ship back the product?

RMA’s are valid for 60 days. If the items are not returned in new, re-sellable condition by that time the RMA will expire and the product will not be eligible for a new RMA.


What happens if the product I am returning is damaged or unsellable upon receipt?

It is our customers’ responsibility to return the product in the same new/undamaged condition in which it was received. If a returned product is damaged, it will not be eligible for credit. We are not responsible for items received damaged.


Can I return a product that has been installed or burned?

No. If a customer has installed or burned a product, the RMA will be denied. This is a liability issue and we are not responsible for any items once they have been installed and/or burned. If an item is believed to be defective, we will be happy to assist you with the warranty process.