{"product_id":"220v-to-3v-power-supply-transformer-gas-water-heater","title":"220V to DC 3V Transformer Power Supply for Gas Water Heaters","description":"\n\u003ch2\u003eEliminate Battery Hassles — Power Your Gas Water Heater from the Mains\u003c\/h2\u003e\n\u003cp\u003eTired of replacing batteries in your flue-type gas water heater? This compact \u003cstrong\u003e220V AC to DC 3V Power Supply Transformer\u003c\/strong\u003e 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.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Upgrade to a Mains Power Supply?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConsistent Ignition:\u003c\/strong\u003e Low or dying batteries are a common cause of ignition failure and misfiring. A steady mains-powered supply keeps ignition strong and dependable.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo More Battery Replacements:\u003c\/strong\u003e Save money and the hassle of sourcing and swapping batteries regularly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSimple Drop-In Replacement:\u003c\/strong\u003e Designed to replace the existing battery box on your flue-type gas water heater — no complex wiring required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGenerous 1.8M Cable:\u003c\/strong\u003e The long lead gives you flexible placement near your water heater without needing an extension cord.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafe \u0026amp; Stable Output:\u003c\/strong\u003e Regulated DC 3.0–3.5V \/ 1.2A output matches the standard battery voltage your heater expects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC 220V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 3.0–3.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.2A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCable Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.8 Metres\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible With\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlue-type gas water heaters (battery-powered ignition models)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 × Transformer Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 220V to DC 3V Power Supply Transformer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-400cm-sealing-tape-faucet-sealing-tape-oil-free-leak-proof-water-pipe-gas-pipeline-sealing-tape\"\u003e1PC 400cm Sealing Tape – Faucet \u0026amp; Gas Pipeline Leak-Proof Tape\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-multi-use-faucet-bubbler-wrenches-6-sizes-sink-wrenches-detach-tool-for-kitchen-bathroom-faucet-parts-repair-spanner\"\u003e1PC Multi-Use Faucet Bubbler Wrenches – Kitchen \u0026amp; Bathroom Repair Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-exhaust-duct-interface-pipe-hose-connector-for-ac-exhaust-pipe-extension-joint-does-not-require-clamp-ring-comes-with-thread\"\u003e1PC Exhaust Duct Interface Pipe Hose Connector for AC \u0026amp; Appliance Exhaust\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What type of water heater is this 220V to 3V transformer compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This transformer is designed specifically for \u003cstrong\u003eflue-type gas water heaters\u003c\/strong\u003e 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is installation complicated?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Will this work with 110V or other voltage systems?\u003c\/h4\u003e\n\u003cp\u003eA: This unit is designed for \u003cstrong\u003eAC 220V input only\u003c\/strong\u003e. It is not compatible with 110V mains supplies without an additional step-up converter. Please ensure your mains supply is 220V before use.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How long is the cable, and is it long enough to reach a wall socket?\u003c\/h4\u003e\n\u003cp\u003eA: The cable measures \u003cstrong\u003e1.8 metres (approximately 6 feet)\u003c\/strong\u003e, which provides generous reach for most bathroom or kitchen installations where the water heater is located near a power outlet.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo 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.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What type of water heater is this 220V to 3V transformer compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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.\"}}, {\"@type\": \"Question\", \"name\": \"Is installation complicated?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — installation is straightforward. 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Please ensure your mains supply is 220V before use.\"}}, {\"@type\": \"Question\", \"name\": \"How long is the cable, and is it long enough to reach a wall socket?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"220V to DC 3V Transformer Power Supply for Gas Water Heaters\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/products\/220v-to-3v-power-supply-transformer-gas-water-heater\"}]}\u003c\/script\u003e","brand":"Nixie","offers":[{"title":"1Pcs","offer_id":67609023053923,"sku":"1005011844363559-1Pcs","price":14.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/2047\/6003\/files\/S9680dbae9bed452e99a25bd125e5a75d4.webp?v=1790786745","url":"https:\/\/nixiehaven.com\/products\/220v-to-3v-power-supply-transformer-gas-water-heater","provider":"Nixie","version":"1.0","type":"link"}