Quick Answer: Electric fireplaces cost far less to buy and install ($150–$3,000+, plug-and-play) and are the safer, lower-maintenance pick with no gas line, venting, or combustion byproducts. Gas fireplaces cost more upfront ($2,300–$4,500+ installed, per HomeAdvisor) but deliver 20,000–40,000 BTU/hr of real heat versus an electric unit’s roughly 5,000 BTU cap, making gas the better choice if you actually need to heat a room, not just add ambiance. Pick electric for looks, easy retrofit, and low running cost; pick gas if heat output is the point.
Electric and gas fireplaces solve different problems, even though they compete for the same spot on your wall. Electric is the plug-in, no-construction option that’s exploded in popularity because it works in any home — rental, condo, or house without a chimney. Gas is the traditional real-flame, real-heat option that costs more to install but heats a room the way a fireplace is “supposed” to. Here’s how they actually compare in 2026.
Head to head at a glance
| Electric | Gas | |
|---|---|---|
| Unit + install cost | $150–$3,000+ (often no install) | $2,300–$4,500+ installed |
| Heat output | ~5,000 BTU (1500W, ~400 sq ft) | 20,000–40,000 BTU/hr |
| Running cost (heat on) | ~24¢/hr at 16¢/kWh | Varies with therm price; burns fuel whenever lit |
| Venting / gas line | None needed | Required (or vent-free unit with limits) |
| Maintenance | Minimal (dust, bulb/LED occasionally) | Annual professional inspection recommended |
| Best for | Ambiance, retrofit, rentals, low cost | Real supplemental heat, traditional flame |
Cost to buy and install
This is where electric pulls ahead the most. A plug-in electric fireplace, whether wall-mount, insert, or freestanding, typically costs $150–$3,000+ for the unit itself, and most models need nothing more than a standard outlet — no professional install required. A gas fireplace is a different scale of project: the insert or unit plus a gas line, venting, and permits runs $2,300–$4,500 or more, per HomeAdvisor’s installation cost data, and that’s before you factor in an annual service call. If budget or a simple retrofit matters, electric wins outright — see our electric fireplace installation cost guide for a full breakdown.
Touchstone Sideline 50 Electric Fireplace
- 1500W heater rated to ~400 sq ft; flame runs independently of heat.
- Plug-and-play — no gas line, venting, or permit needed.
- Recessed or wall-mount install in an afternoon.
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Heat output
Here gas wins decisively. A typical gas fireplace insert puts out 20,000–40,000 BTU/hr — enough to genuinely warm a living room or open floor plan. Nearly every plug-in electric fireplace, by contrast, caps out around 5,000 BTU from a standard 1500W heater, rated for roughly 400 sq ft as a supplemental zone heater. That gap doesn’t change much with price: a $150 electric unit and a $2,800 Dimplex both top out near the same 1500W ceiling — you’re paying for flame realism and build quality, not more heat. If actually heating the room is the goal, not just ambiance, gas is the only one of the two that can do it. See our electric fireplace sizing guide for how the 400 sq ft rule plays out room by room.
Running cost and efficiency
Electric is cheaper to run for ambiance specifically. Flame-only mode (no heat) uses just pennies a day, since the LED flame effect draws very little power — which is why so many owners leave it on year-round as a nightlight-level feature. Run the full 1500W heater and it costs roughly 24 cents an hour at a typical 16-cent/kWh electricity rate. A gas fireplace doesn’t have a flame-only mode in the same sense: any time the flame is lit, it’s burning fuel, heat or not, so ambiance-only use adds up faster over a season, even though the fuel cost per BTU is generally lower than electric resistance heating.
Maintenance and safety
Electric fireplaces need almost nothing — occasional dusting and, on some models, an LED or bulb replacement years down the line. There’s no open flame, no gas line to leak, and no combustion byproducts to vent, which is why they’re allowed in apartments, condos, and homes without a chimney. Gas fireplaces are safe when properly installed and maintained, but “properly maintained” is doing real work in that sentence — annual professional inspection is recommended, a carbon monoxide detector should be nearby, and the venting or gas line needs periodic checking. That ongoing cost and complexity is the tradeoff for the higher heat output.
The bottom line
Choose electric if you want low upfront cost, an easy retrofit into a rental or a home without a chimney, and minimal ongoing maintenance — the tradeoff is heat that’s genuinely supplemental, not a room-warming replacement. Choose gas if real heat output matters and you’re willing to pay more upfront and keep up with annual inspection for it. For most homeowners adding a feature wall or converting an old firebox without a working chimney, electric is the practical pick; see our best electric fireplace rankings for our top-tested picks across every install type.