DIMPLEX BLF3451

Dimplex Prism 34-Inch Linear Electric Fireplace (Model BLF3451) Instruction Manual

Model: BLF3451 (also referred to as BLF5051)

1. Introduction

This manual provides essential information for the safe and efficient operation, installation, and maintenance of your Dimplex Prism 34-inch Linear Electric Fireplace. Please read all instructions carefully before installation and use. Retain this manual for future reference.

Dimplex Prism 34-inch Linear Electric Fireplace, front view with flames

Figure 1: Front view of the Dimplex Prism 34-inch Linear Electric Fireplace displaying its flame effect.

2. Important Safety Information

Always follow basic precautions to reduce the risk of fire, electric shock, and injury to persons.

  • Read all instructions before using this fireplace.
  • This fireplace is hot when in use. To avoid burns, do not let bare skin touch hot surfaces. Keep combustible materials, such as furniture, pillows, bedding, papers, clothes, and curtains at least 3 feet (0.9 m) from the front of the fireplace.
  • Extreme caution is necessary when any heater is used by or near children or invalids and whenever the fireplace is left operating and unattended.
  • Do not operate any fireplace with a damaged cord or plug, or if the heater malfunctions, has been dropped, or damaged in any manner.
  • Do not use outdoors.
  • To disconnect the fireplace, turn controls to off, then remove the plug from the outlet.
  • Do not insert or allow foreign objects to enter any ventilation or exhaust opening as this may cause an electric shock or fire, or damage the fireplace.
  • Always plug heaters directly into a wall outlet/receptacle. Never use with an extension cord or relocatable power tap (outlet/power strip).
  • This fireplace is designed with cool-to-touch glass for enhanced safety, reducing the risk of burns from direct contact with the front panel.
Child reaching towards the fireplace, illustrating its cool-to-touch feature

Figure 2: The fireplace features cool-to-touch glass, enhancing safety for households.

3. Package Contents

Verify that all components are present and undamaged before proceeding with installation.

  • 1 x Dimplex Prism 34-Inch Electric Fireplace Unit
  • 1 x Acrylic Crystal Ember Bed
  • 1 x Multifunction Remote Control (requires 2 AA batteries, not included)
  • Mounting Hardware (for wall-mount and recessed installations)

4. Specifications

FeatureDetail
BrandDIMPLEX
Model NamePRISM (BLF3451 / BLF5051)
Power SourceElectric (120V standard outlet)
Product Dimensions (D x W x H)7"D x 34.25"W x 19.5"H
MaterialMetal, Glass
Finish TypeGlass
Installation TypeWall Mount, Fully Recessed, Partially Recessed
Heat Output4163 British Thermal Units (BTU)
Heating CoverageUp to 400 square feet
Special FeatureLED Flame Effect, RGB Color Themes, Thermostat Control
Item Weight56 Pounds
UPC781052098763
Diagram showing the dimensions of the Dimplex Prism electric fireplace: 34-1/4 inches wide, 19-1/2 inches high, and 7 inches deep.

Figure 3: Product dimensions for planning installation.

5. Installation

The Dimplex Prism electric fireplace offers flexible installation options to suit various room designs. It can be wall-mounted, fully recessed, or partially recessed.

5.1 General Requirements

  • Ensure the installation location is structurally sound and can support the weight of the fireplace (56 lbs).
  • A dedicated 120V, 15 Amp circuit is recommended for optimal performance.
  • Maintain proper clearances from combustible materials as specified in Section 2.

5.2 Installation Types

Refer to the diagrams below for visual guidance on each installation method. Detailed framing instructions are included in the separate installation guide (not part of this manual) and are crucial for recessed installations.

Three diagrams illustrating flexible installation options: fully recessed, partially recessed, and wall-mounted for the electric fireplace.

Figure 4: Visual representation of fully recessed, partially recessed, and wall-mounted installation options.

5.3 Electrical Connection

The fireplace is designed to be plugged into a standard 120V electrical outlet. Ensure the outlet is easily accessible after installation.

6. Operation

Your Dimplex Prism fireplace can be operated using the included multifunction remote control or the control panel located on the unit.

6.1 Remote Control Functions

The remote control allows for convenient adjustment of all fireplace features. Ensure 2 AA batteries are installed correctly.

Diagram of the remote control for the Dimplex Prism fireplace, showing buttons for Standby ON/OFF, Flame Effects, Thermostat Control, Color Themes, Heat ON/OFF, Brightness, and Sleep Timer.

Figure 5: Remote control layout and button functions.

  • Standby ON/OFF: Powers the unit on or off.
  • Flame Effects: Cycles through various flame patterns and speeds.
  • Thermostat Control (+/-): Adjusts the desired room temperature.
  • Color Themes: Changes the color of the LED flame and ember bed.
  • Heat ON/OFF: Activates or deactivates the heating function. The flame effect can operate independently of the heat.
  • Brightness: Adjusts the intensity of the flame and ember bed.
  • Sleep Timer: Sets a timer for automatic shutdown.

6.2 Heating Function

The fireplace provides supplemental heat for areas up to 400 sq. ft. The heater operates independently of the flame effect, allowing you to enjoy the visual ambiance without heat during warmer periods.

Image showing the top-venting design of the fireplace, indicating heat output, along with icons for thermostat control and all-season flames.

Figure 6: The fireplace features a top-venting design for heat distribution, thermostat control, and all-season flame operation.

Image showing red arrows indicating heat flowing downwards from the top vent of the fireplace into a room setting.

Figure 7: Illustration of heat distribution from the top vent.

7. Maintenance

Regular maintenance ensures the longevity and optimal performance of your electric fireplace.

  • Cleaning: Ensure the fireplace is turned off and unplugged before cleaning. Use a soft, damp cloth to clean the exterior surfaces. Do not use abrasive cleaners or sprays.
  • Glass Panel: Clean the glass panel with a soft cloth and a non-abrasive glass cleaner.
  • Air Intake/Outlet: Periodically check and clean the air intake and outlet vents to ensure they are free from dust and obstructions. Use a vacuum cleaner with a soft brush attachment.
  • Light Bulbs: The LED flame effect uses long-lasting LED technology, which typically does not require replacement.

8. Troubleshooting

If you experience issues with your fireplace, consult the following common troubleshooting steps.

ProblemPossible CauseSolution
Fireplace does not turn on.No power to the unit; power switch off; circuit breaker tripped.Ensure the unit is plugged into a live outlet. Check the main power switch on the unit. Reset the circuit breaker if necessary.
No heat output.Heater function is off; thermostat set too low; air vents blocked.Activate the heater function via remote or control panel. Increase the thermostat setting. Clear any obstructions from air intake/outlet vents.
Flame effect not working.Flame effect is off; internal component issue.Ensure the flame effect is activated. If the problem persists, contact customer support.
Remote control not working.Dead batteries; remote out of range; obstruction.Replace batteries (2 AA). Ensure you are within range and there are no obstructions between the remote and the fireplace sensor.

If these steps do not resolve the issue, please contact Dimplex customer support.

9. Warranty

This Dimplex Prism Electric Fireplace comes with a Limited Warranty. Please refer to the warranty card included with your product for specific terms, conditions, and duration of coverage. Retain your proof of purchase for warranty claims.

10. Support

For technical assistance, replacement parts, or further inquiries, please contact Dimplex customer support. Contact information can typically be found on the manufacturer's website or on the product packaging.

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