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Memphis Control Center stocks Allanson ferromagnetic and electronic ignition transformers for oil burners and gas burners — the 2721-628G for Beckett A/AF/AFG, 421-BT636 universal 6-position replacement, 2275 electronic ignitor series, 1092 gas burner series for North American, Ray, Cleaver Brooks, Power Flame, Webster, and Gordon-Piatt, and burner-specific 421 series. Cross-reference help available — call us with your burner make and model. Free same-day shipping from Memphis, TN since 1967.
The Allanson models below are the most commonly purchased across the HVAC and combustion industry. Not sure which model you need? Contact our team or call (901) 458-2000 — we cross-reference against France, Webster, Dongan, Sid Harvey, and Carlin part numbers.
Ferromagnetic Ignition Transformer for Beckett A, AF, and AFG oil burners. 120V primary / 10,000V secondary, 23 mA, 60 Hz, mid-point ground. High-temperature wire construction with superior EMI/RFI shielding. Replacement gasket included ("G" suffix). Replaces obsolete 2721-628A. Not compatible with Beckett NX burners. Cross-references: France 5LAY-04, Webster T-92, Dongan XD-BK103, Sid Harvey T-92.
Universal 6-Position Replacement Ignition Transformer. 120V primary / 10,000V secondary, 23 mA, 60 Hz, mid-point ground. Six-position mounting adaptability with complete mounting hardware. Used when an original burner-specific transformer is unavailable. Cross-references: France LAUV, Webster 312-25AX0600, Dongan LJH-90, Sid Harvey T1-15. The 444-BT636 is the 240V primary equivalent.
Electronic Ignitor for Beckett AFII oil burners. Allanson classifies the 2275 series as "Electronic Ignitors" — they use electronic circuitry to generate a higher-frequency, higher-voltage output compared to conventional ferromagnetic transformers. 120V / 50-60Hz, 17,500V secondary, 45mA, mid-point ground. High-voltage cables with 1/4" push-on terminals. Side bracket mounting. History of excellent operation under brownout conditions. CSA and UL listed.
Gas Burner Ignition Transformer — North American Burners. 120V / 6,000V. The 1092 series is Allanson's primary line for commercial gas burner ignition. The 1092-NA is for North American burner applications — other 1092 variants cover Ray Burner (1092-N), Cleaver Brooks (1092-H), Power Flame (1092-PF-G), Webster (1092-SG), and Gordon-Piatt (1092-S). All 1092 series: 120V primary / 6,000V secondary.
Allanson's catalog is organized into distinct series — each targeting a specific transformer type or application. Find your series below, then use the burner cross-reference table to find the exact model.
Find the Allanson transformer for your burner. Also shows France, Webster, Dongan, and Sid Harvey cross-reference numbers. Can't find yours? Contact us or call (901) 458-2000.
| Burner / Application | Allanson | Voltage | France | Dongan / Sid Harvey | Shop |
|---|---|---|---|---|---|
| Beckett A, AF, AFG | 2721-628G | 120V/10kV · 23mA · 250VA | 5LAY-04 | XD-BK103 / T-92 | Shop |
| Beckett A, AF, AFG (240V) | 2744-628G | 240V/10kV · 23mA · 250VA | — | — | Shop |
| Beckett AFII (electronic ignitor) | 2275-658 | 120V/17.5kV · 45mA | — | — | Shop |
| Wayne E Oil Burner | 2721-620 | 120V/10kV | 5LAY-30 | XD-WN208 / T-88 | Shop |
| Wayne Hi-Speed M/MH | 2721-619 | 120V/10kV | — | — | Shop |
| Wayne Blue Angel / Eagle One | 2721-647 | 120V/10kV | — | — | Shop |
| Carlin 99, 100, 101, Card Miser | 2721-630 | 120V/10kV | — | — | Shop |
| Gordon-Piatt (oil, 10kV) | 421-661 | 120V/10kV | — | — | Shop |
| Cleaver Brooks (oil, 10kV) | 421-659 | 120V/10kV | — | — | Shop |
| Power Flame (oil, 10kV) | 421-655-G | 120V/10kV | — | — | Shop |
| Webster Engineering (oil, 10kV) | 421-664 | 120V/10kV | — | — | Shop |
| Universal (oil, 120V) | 421-BT636 | 120V/10kV · 23mA · 250VA | LAUV | LJH-90 / T1-15 | Shop |
| Universal (oil, 240V) | 444-BT636 | 240V/10kV · 250VA | — | — | Shop |
| North American (gas, 6kV) | 1092-NA | 120V/6kV | — | — | Shop |
| Ray Burner (gas, 6kV) | 1092-N | 120V/6kV | — | — | Shop |
| Cleaver Brooks (gas, 6kV) | 1092-H | 120V/6kV | — | — | Shop |
| Power Flame (gas, 6kV, grounded) | 1092-PF-G | 120V/6kV · w/ground | — | — | Shop |
| Webster (gas, 6kV) | 1092-SG | 120V/6kV · 3-wire primary | — | — | Shop |
| Gordon-Piatt (gas, 6kV) | 1092-S | 120V/6kV | — | — | Shop |
| Universal (gas, BX connector) | 1092-F | 120V/6kV · BX connector | — | — | Shop |
| Wayne E (120V, slate base) | 2721-637 | 120V/10kV · 250VA | 5LAY-30 | — | Shop |
Common questions about Allanson ignition transformers. Contact our team or call (901) 458-2000 for cross-reference and specification help.
What is the difference between Allanson ferromagnetic ignition transformers and electronic ignitors?
Ferromagnetic transformers (2721 series, 421 series) use a conventional iron-core design to step 120V up to 10,000V secondary for oil burner ignition. Electronic ignitors (2275 series) use electronic circuitry to generate a higher-frequency output — 17,500V secondary at 45mA — producing a more intense spark. The 2275-658 is for the Beckett AFII burner specifically; other 2275 variants cover Wayne and Carlin applications. The ferromagnetic 2721 series covers Beckett A, AF, and AFG. These are not interchangeable — always verify your specific burner model before ordering.
What Allanson transformer replaces the 2721-628A?
The Allanson 2721-628G is the direct replacement for the obsolete 2721-628A. The "G" suffix indicates a replacement gasket is included. Specs: 120V primary, 10,000V secondary, 23mA, mid-point ground. For Beckett A, AF, and AFG oil burners. Not compatible with Beckett NX burners.
What is the difference between the Allanson 2721-628G and 2275-658?
Both are Allanson ignition transformers for Beckett oil burners but they are different product types and for different burner models. The 2721-628G is a conventional ferromagnetic transformer for Beckett A, AF, and AFG burners — 120V / 10,000V, 23mA, mid-point ground. The 2275-658 is an electronic ignitor specifically for the Beckett AFII burner — 120V / 17,500V, 45mA, mid-point ground. These are not interchangeable — the correct model depends on which specific Beckett burner model you have. Check your burner nameplate for the exact model designation.
What are the cross-reference numbers for the Allanson 2721-628G?
The Allanson 2721-628G cross-references to: France 5LAY-04, Webster T-92, Dongan XD-BK103, Sid Harvey T-92. It also replaces the obsolete Allanson 2721-628A and 2721-627. All are ferromagnetic ignition transformers for Beckett A, AF, and AFG oil burners.
What is the Allanson 421-BT636 and what does it replace?
The 421-BT636 is a universal 6-position replacement ignition transformer — 120V / 10,000V, 23mA, mid-point ground — used when the original burner-specific transformer is unavailable. Cross-references: France LAUV, Webster 312-25AX0600, Dongan LJH-90, Sid Harvey T1-15. Includes complete mounting hardware with six-position adaptability. The 444-BT636 is the 240V primary equivalent.
What is the difference between the Allanson 1092 gas burner series variants?
All 1092 series are 120V primary / 6,000V secondary gas burner ignition transformers. The variants differ by which commercial gas burner they fit: 1092-NA = North American, 1092-N = Ray Burner, 1092-H = Cleaver Brooks, 1092-PF-G = Power Flame (with ground wire), 1092-SG = Webster (3-wire primary), 1092-S = Gordon-Piatt, 1092-F = universal replacement with BX connector. All stocked at Memphis Control Center.
For emergencies, outside of business hours, call #901-604-7069
