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Water Heater Planning · 5 min read

Where Should a Storage Water Heater Go in a 4-Room BTO?

Plan pipe routes, tank support and maintenance access before renovation starts.

Place a storage water heater close enough to the bathrooms for practical pipe routing, while retaining enough space for secure installation and future servicing. The ideal position depends on the BTO layout.

Consider the distance from both bathrooms

When one heater supplies the master and common bathrooms, its location affects the route taken by the hot-water pipes. A shorter, more direct route can be easier to plan.

  • Distance from master and common bathrooms
  • Existing hot and cold water-pipe routes
  • Available wall or ceiling space
  • Access needed for servicing and replacement
  • Tank size and household usage

Keep enough maintenance access

A heater may look neater above a ceiling or behind a structure, but it should not become inaccessible. It will need inspection, servicing or replacement in future.

Remember that the unit becomes considerably heavier when its tank is filled. Capacities such as 15L, 20L and 30L require different amounts of space and support.

Plan plumbing and electrical work together

Confirm the location before plumbing and electrical work begins. Regulated plumbing work should be carried out by a Licensed Plumber, while electrical work must follow the applicable requirements.

So where should it go?

The better location keeps the pipe route practical, provides sufficient structural support and allows safe maintenance access. Check the proposed location together with the chosen tank dimensions.

Important: Renovation and regulated plumbing work should follow current HDB and PUB requirements. Confirm the final proposal with your contractor and Licensed Plumber before work begins.
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