Looking for a 45 inch electric fireplace that blends aesthetics, warmth, and tech. This guide highlights five top options, each chosen for different needs—from in-wall recessed homes to mantel-ready inserts. Each product section explains who it’s best for, why it stands out, and a practical caveat to consider before you buy. Whether you want Alexa compatibility, vivid flame presets, or flexible installation, there is a model here that fits your space and budget.
Buyer quick view: the table below summarizes the five selected products, focusing on type, best use case, and standout features.
| Product | Type | Best For | Key Feature |
|---|---|---|---|
| Touchstone Sideline 45″ | In-wall recessed fireplace | Homeowners wanting a seamless, built-in look | 11 flame color options, heat with remote, thermostat |
| Kentsky 45″ Electric Fireplace Insert | Recessed/wall-mounted insert | Medium to large living spaces, clean modern look | Thermostat, multicolor flame, remote & touch control |
| FODINGHILL 45″ Fireplace Mantel Insert | Mantel style insert | Classic decor with mantel integration | Realistic flames, 400 sq ft heating coverage |
| LegendFlame Damon 35″ | Electric fireplace insert | Available space flexible with glass/brick look | Multiple mood lights, remote, 750/1500W |
| Sixfivsevn 43″ Electric Fireplace | Wall-mounted/ recessed hybrid | Low-noise operation in modern rooms | 12 flame colors, remote, 750/1500W |
Touchstone Sideline 45″ Wide In-Wall Electric Fireplace

Best for a built-in look without a traditional chimney. This recessed unit is designed to be installed in-wall and remains cool to the touch around the edges. It offers 5 flame settings from a soft ember glow to a full blaze and includes a 1,500W heater with thermostat. The Sideline accepts one log or crystal hearth options and can be controlled by remote or via compatible smart-home setups. A note on space: maintain the recommended clearance around the top to avoid heat exposure to nearby TVs or mantels. It is ventless and designed for straightforward framing, with hard-wire or plug-in options available.
Best for: Homeowners wanting a high-end, flush-mounted fireplace with flexible flame settings and smart-control potential. Caution: ensure proper electrical circuit capacity, as peak usage may approach circuit limits on shared lines.
Kentsky 45 Inch Electric Fireplace Insert

Best for: homes seeking a sophisticated insert with versatile flame options and full-featured remote and touch control. Caution: verify your wall cavity and mounting depth to ensure a proper fit.
FODINGHILL 45 Inch Fireplace Mantel Insert

Best for: rooms where a mantel centerpiece is desired. This freestanding mantel-style insert includes a realistic flame effect and a 400 square foot heating range. It blends classic decor with modern heating. The unit is designed to enhance room ambiance while providing warmth. Keep in mind: assembly and mantel integration may require some setup time and space planning.
LegendFlame Damon 35″ Electric Fireplace Insert

Best for: buyers who want mood lighting and optional heater with a glass-door look. It features multiple brightness and speed settings, a three-sided interior brick effect, and a realistic log aesthetic. Recommendation is to choose this if you value a realistic ambience and flexible lighting. Limitation: width is slightly under 45 inches, so verify fit in your intended opening.
Sixfivsevn 43 Inch Electric Fireplace

Best for: rooms where space is tight but you still want a broad flame display. This ultra-thin model supports 12 flame color options and dual heat settings (750W/1500W). It offers timer and remote control for flexible use. Caution: while close to 45 inches, confirm exact wall or mantel dimensions to ensure a clean fit.
Buying Guide
- Fireplace type: recessed in-wall, mantel insert, or wall-mounted. Choose based on your existing space and desired aesthetics.
- Size accuracy: confirm actual width vs. opening. Some models labeled “45 inch” may measure slightly differently when installed.
- Heating capacity: consider room size. Models with 1500W heaters are better for larger spaces; 750W is suited for small to medium rooms.
- Flame realism and color options: if ambience matters, prioritize units with multiple flame settings and color modes.
- Controls: remote, touch, and smart-home compatibility vary. Check compatibility with your preferred ecosystem (Alexa, Wi-Fi, app control).
- Electrical requirements: verify circuit capacity and whether a dedicated circuit is recommended for the highest-heat models.
- Installation considerations: some units require framing, while others are mantel units. Professional installation may be advisable for in-wall models.
Frequently Asked Questions
- Do these fireplaces require a vent? No, electric fireplaces are ventless and designed for indoor use without a chimney.
- Can I use the flame effect without heat? Yes, most models allow flame-only operation for ambience year-round.
- What is the typical wattage range for these units? Most 45 inch models fall between 750W and 1500W, depending on heat settings and configuration.
- Are these suitable for bedrooms? Yes, many models offer quiet operation and thermostatic control suitable for bedrooms; check noise levels and safety features.
- Is professional installation necessary for all 45 inch models? In-wall recessed units typically require professional installation, while mantel inserts may be DIY-friendly with precautions.