2721-653 Allanson Replacement Ignition Transformer – Weil-McLain QB180
The Allanson 2721-653 is a high-quality replacement ignition transformer designed specifically for Weil-McLain QB180 oil burners. Built for reliability and long-lasting performance, this transformer ensures consistent spark generation for safe and efficient burner operation.
✅ Key Features
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Direct Replacement – Designed for Weil-McLain QB180 burners
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Durable Construction – High temperature wire and single porcelain design for long life
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Reliable Performance – Provides a steady 10,000V secondary spark for ignition
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Universal Safety Compliance – Meets American and European EMI/RFI noise emission standards
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Double Pole Design – Ensures constant duty and dependable ignition
📊 Specifications
Specification | Detail |
Part Number |
2721-653 |
Application |
Ignition Transformer for Oil Burners |
Burner Manufacturer |
Weil-McLain |
Burner Type |
QB180 |
Input Voltage |
120V |
Current |
23mA |
Grounding |
Mid Point Ground |
Secondary Voltage |
10,000V |
Input Frequency |
60Hz |
Can Size |
Small Can Series |
HV Terminal |
1/4" Push On |
Poles |
Double |
🛒 Shopping Tips
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Verify Burner Model – Ensure your burner is Weil-McLain QB180 before purchasing.
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Check Transformer Poles – This is a double pole transformer; match with your original unit.
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Inspect Old Transformer – Replace if corroded, damaged, or failing to produce a consistent spark.
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Keep as Backup – A low-cost part that prevents downtime in critical heating systems.
❓ Frequently Asked Questions (FAQ)
Q1: Can this replace other transformer models?
A: This transformer is designed specifically for Weil-McLain QB180. Compatibility with other models should be verified.
Q2: How do I know if my transformer needs replacement?
A: Signs include no spark, intermittent ignition, or visible physical damage.
Q3: Is installation difficult?
A: No, it is a direct replacement with the same mounting and terminal configuration.
Q4: Does it meet safety standards?
A: Yes, it meets both American and European EMI/RFI noise emission standards.