220V to DC 3V Transformer Power Supply for Gas Water Heaters
220V to DC 3V Transformer Power Supply for Gas Water Heaters
Eliminate Battery Hassles — Power Your Gas Water Heater from the Mains
Tired of replacing batteries in your flue-type gas water heater? This compact 220V AC to DC 3V Power Supply Transformer lets you permanently ditch the battery box and run your water heater directly from a standard mains outlet. With a built-in transformer circuit board, it converts household 220V AC power into a stable DC 3.0–3.5V output — exactly what your water heater needs for reliable ignition every time.
Why Upgrade to a Mains Power Supply?
- Consistent Ignition: Low or dying batteries are a common cause of ignition failure and misfiring. A steady mains-powered supply keeps ignition strong and dependable.
- No More Battery Replacements: Save money and the hassle of sourcing and swapping batteries regularly.
- Simple Drop-In Replacement: Designed to replace the existing battery box on your flue-type gas water heater — no complex wiring required.
- Generous 1.8M Cable: The long lead gives you flexible placement near your water heater without needing an extension cord.
- Safe & Stable Output: Regulated DC 3.0–3.5V / 1.2A output matches the standard battery voltage your heater expects.
Specifications
| Input Voltage | AC 220V |
| Output Voltage | DC 3.0–3.5V |
| Output Current | 1.2A |
| Cable Length | 1.8 Metres |
| Compatible With | Flue-type gas water heaters (battery-powered ignition models) |
| Quantity | 1 × Transformer Unit |
What's in the Box?
- 1 × 220V to DC 3V Power Supply Transformer
Made in Mainland China.
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Frequently Asked Questions
Q: What type of water heater is this 220V to 3V transformer compatible with?
A: This transformer is designed specifically for flue-type gas water heaters that use a DC 3V battery box for ignition. If your water heater runs on two D-size or similar batteries providing roughly 3V DC, this transformer is a direct replacement for that battery compartment.
Q: Is installation complicated?
A: No — installation is straightforward. The transformer simply replaces the existing battery box on your water heater. Connect the output leads where the batteries would normally sit, then plug the transformer into a standard 220V mains socket. No specialist tools or electrical knowledge beyond basic appliance maintenance is required. If you are unsure, consult a qualified technician.
Q: Will this work with 110V or other voltage systems?
A: This unit is designed for AC 220V input only. It is not compatible with 110V mains supplies without an additional step-up converter. Please ensure your mains supply is 220V before use.
Q: How long is the cable, and is it long enough to reach a wall socket?
A: The cable measures 1.8 metres (approximately 6 feet), which provides generous reach for most bathroom or kitchen installations where the water heater is located near a power outlet.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.