DRAFT — outline only. Do not publish until the figures below are verified. Keep this guide inactive until it is written.
Angle: The upkeep owners actually need to do.
This guide must answer: - What routine maintenance does an SWH need? - What winter-specific servicing matters in NCR? - How does hard water affect it? - DIY vs service.
Writing rules: answer the question in the first two sentences, put a real number in the opening paragraph, name the specific city or DISCOM where the answer varies, and link to two related guides and the relevant category page.
Verify before publishing: Local servicing norms.
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Last updated 4 August 2026 · Reviewed by the RenSetu team