Electric Instant Water Heater in Singapore
An instant water heater gives you hot water on demand without a storage tank — a popular choice for compact HDB and condo bathrooms. SparkFlow supplies electric instant heaters from Champs, Rubine, Ariston, Mistral, KDK, 707 and more, starting from around $98. As an EMA-licensed contractor, we install them properly: mounting the unit, connecting it to your isolator and water supply, and testing the safety cut-out. Whether you're replacing an old shower heater or fitting a fresh one, tell us your bathroom setup and we'll quote supply plus installation.
NNIO+1 photosNNIO N3230SH 3.3KW Instant Shower Heater
NNIO N3230SH 3.3KW Instant Shower Heater
KDKKDK TG3BL1 Instant Water Heater — One-Knob Simple Control
Value 3.3kW instant heater — simple one-knob control, 3-way Ag+ shower, 9 safety features.
Champs+1 photosChamps VELA-WH Electric Instant Water Heater
Champs VELA-WH Electric Instant Water Heater

Rubine+2 photosCHOCO 113
White
KDK+1 photosKDK TG3BL1SW-MW Electric Instant Water Heater
KDK TG3BL1SW-MW Electric Instant Water Heater
Champs+2 photosChamps City Instant Water Heater
Champs's cheapest instant heater — no-fuss 3.3kW, polymer tank.
AristonAURES EASY 3.3N SBS
Entry Ariston instant heater — 3.3kW, single-point, Total Safety System.
Champs+4 photosChamps Auriga Core Instant Water Heater
Value-entry instant heater — 3.3kW, 4-tick energy rating, compact 1.4kg body.
Electric Instant Water Heater — common questions
- Do you install instant water heaters, and are you licensed?
- Yes. We're EMA-licensed (ME05 L1) and our electricians mount the heater, wire it to a dedicated isolator switch, and connect the water supply. We also test the built-in safety cut-out before handing it over.
- Which brands do you carry?
- Our instant heaters come from Champs, Rubine, Ariston, Mistral, KDK, 707, Decco, NNIO, Toshiba and Europace. Prices range from about $98 up to roughly $549 depending on wattage and features like pump assist.
- Should I get an instant or storage water heater?
- Instant heaters heat water as it flows, so there's no tank and no waiting — ideal for single-shower bathrooms and tight spaces. If you need strong flow at multiple outlets at once, a storage heater may suit better. We're happy to advise based on your bathroom.
- Can you replace my old water heater?
- Yes, swap-outs are common. We remove the old unit, check the existing wiring and water points are sound, and install the new heater. If the isolator or piping needs updating, we'll flag that in the quote.
- How much does an instant water heater cost installed?
- The heater itself runs from around $98 to $549. Installation is quoted on top based on whether it's a straight replacement or a new point, and the condition of your existing wiring and plumbing.