AIRBLAZE T12, Universal Fireplace Blower Fan Kit 12 with Temperature and Speed Controller, Compatible with Lennox, Hearth Glo, Majestic, Rotom Fireplaces, for Home Heat Circulation. A quiet blower fan kit with smart controls, designed to boost airflow coming from your fireplace. Being a standard size, it can replace blowers found in Lennox, Hearth Glo, Majestic, Rotom, and other fireplaces. Programmable controller features temperature triggers, countdown timers, alarms, and 10 fan speeds. Features a DC-motor controlled using PWM for a truly quiet and energy efficient performance.