Fireplace & Hearth

Fireplace Blower

A fireplace blower is an electrically powered fan system that actively circulates heated air from the fireplace into the living space, dramatically improving the heating efficiency of the unit. Without a blower, fireplaces rely primarily on radiant heat, which warms objects and people in direct line of sight but does little to heat the overall room air. A blower draws cool room air through channels around the firebox, heats it through contact with the hot surfaces, and pushes the warmed air back into the room through vents. Fireplace blowers are most commonly integrated into fireplace inserts and zero-clearance gas fireplaces, though aftermarket blower kits are available for many existing fireplace models. The addition of a blower can increase the usable heat output of a fireplace by 30 to 50 percent, transforming a primarily decorative feature into a meaningful heating source. Modern blowers operate quietly with variable speed controls, allowing the user to adjust airflow for comfort and noise preference. Thermostatically controlled models activate automatically when the firebox reaches operating temperature.

Key Characteristics

  • Electrically powered fan for heat circulation
  • Increases usable heat output by 30 to 50 percent
  • Variable speed controls for comfort adjustment
  • Thermostatically controlled auto-activation
  • Transforms decorative fireplace into heating source
  • Available as integrated or aftermarket kit

Types & Variations

Integrated factory-installed blower
Aftermarket universal blower kit
Variable speed blower with remote
Thermostatically controlled blower
Dual fan blower for large inserts

Common Materials

Quiet-operation centrifugal fan motorsSteel fan housings and bracketsHeat-activated speed controllersFlexible wiring with thermal protectionWashable air filters for dust controlVibration-dampening rubber mounts

Placement & Usage Tips

Blowers are installed below or behind the firebox and require proximity to an electrical outlet. Ensure the air intake and output vents are unobstructed by furniture or decorative items for maximum effectiveness.

💡 Pro Tip

Clean the blower fan blades and air intake filter at the beginning of each heating season to maintain peak performance and quiet operation. A dirty blower works harder, produces more noise, and moves less air than a clean one.