Description
The Allanson 421-BT387 is a high-voltage ignition transformer designed for reliable ignition in oil burner and multi-burner heating applications. Operating on a 120V input and delivering up to 10,000 volts output, this transformer provides the necessary spark energy for consistent burner ignition. It is commonly used as a replacement unit in residential, commercial, and light industrial oil-fired systems. Built for durability and dependable performance, this ignition transformer supports efficient burner startup and reliable operation in demanding heating environments.
Key Features:
- 120V primary input for standard power supply compatibility
- 10,000V secondary output for strong ignition performance
- Designed for oil burner and multi-burner applications
- Suitable replacement transformer for various heating systems
- Provides consistent and reliable ignition spark
- Durable construction for long service life in HVAC applications






