A reliable supply of hot water is not a luxury — it is an everyday essential. 707’s range of storage water heaters delivers consistent hot showers experience, complete with advanced safety features and the peace of mind that comes from a trusted, heritage brand.
50+ Years in Singapore
Trusted by Singapore Families
Safety Mark registered
Choosing the right storage water heater for your Singapore home is a long-term investment. 707’s range is built to balance performance, safety, and running costs — so you never have to compromise.
The storage tank maintains a full reservoir of heated water throughout the day. Whether your household needs a morning shower or an evening rinse, hot water is available the moment you open the tap — no waiting, no cold bursts.
Every 707 storage water heater in Singapore meets and built above the Singapore safety standards. Each unit features thermal cut-out protection, pressure relief valves, and anti-corrosion inner linings as standard.
Modern insulation technology minimises standby heat loss — the primary energy cost of any storage water heater. 707 models use high-density foam insulation to keep water hotter for longer, which translates directly into lower electricity bills for your household.
From compact 15-litre units ideal for a single bathroom to 35-litre tanks that comfortably serve a family of 5, 707 offers capacity options designed for every Singapore home type — HDB flat, condominium, or landed property.
As Singapore’s preferred residential water heater provider for generations, 707 been trusted by Singapore Families. Our customers return not just for the products, but for the reliability of knowing their storage water heater will perform year after year — backed by genuine parts and a responsive service team.
Selecting the correct tank capacity ensures your storage water heater works efficiently without overworking itself or leaving family members short of hot water. Use the guide below as a starting point, then speak with a 707 specialist for a tailored recommendation.
| Household Size | Bathrooms | Recommended Capacity | Best For |
|---|---|---|---|
| 1–2 persons | 1 | 15L | Singles, couples, studio or 2-room HDB |
| 2–3 persons | 1–2 | 25L Popular | Small families, 3-room HDB |
| 3–4 persons | 2 | 30L Recommended | Typical families, 4- or 5-room HDB, condo |
| 4–5 persons | 2–3 | 40L | Larger families, condominiums, landed homes |
* Capacities listed are per bathroom unit. For multi-bathroom homes, a separate storage water heater for each bathroom is generally recommended for consistent pressure and temperature. Consult a 707 installer for a full assessment.
A storage water heater always keeps a full tank of hot water ready, which means electricity is used to maintain that temperature thus it is not as energy efficient as the instant water heater which only use electricity when you use it and no electricity is wasted between uses.
The real-world cost gap is smaller than many expect. 707’s storage water heater uses high-density foam insulation to minimise standby heat loss.
Most units reach the suitable for shower temperature within 20–30 minutes from cold, though a 15-litre tank will heat noticeably faster than a 35-litre one. It is recommended for household to turn off storage water heater when not in use. With the 707’s foam insulation which minimises heat lost, the element only activates briefly to top up heat between uses, keeping running costs low.
For safety reason, it is not recommended to leave your storage heater turned on all the time.
For a well-insulated storage water heater like 707 Kensington+ and Dalton, the standby cost is modest.
A cheaper storage water heater with thinner insulation may cost considerably more to run over its lifetime — making a trusted 707 unit the better investment in the long run.