The Heatrae Sadia Supreme 150 is a 2.5 litre wall-mounted electric boiling water boiler, permanently plumbed to deliver instant boiling water for tea, coffee and hot snacks in busy office kitchens, catering environments and staffrooms.
Intelliboil Plus technology manages the boiling cycle efficiently, reducing the tank temperature by 10°C after an hour of inactivity to save energy, while Biomaster antimicrobial protection is built into the unit for the lifetime of the product.
Intelliboil Plus Technology
Manages the boiling cycle efficiently and reduces tank temperature by 10°C after an hour without use, cutting standing energy loss until the unit is next drawn on.
Biomaster Antimicrobial Protection
A silver-ion antibacterial agent is built into the unit for its working life, inhibiting bacterial growth on surfaces and supporting hygiene compliance such as HTM 04-01 in healthcare settings.
150 Cups Per Hour Boiling Capacity
Delivers up to 150 cups (167ml each) per hour with fast recovery, and can supply roughly 15 cups instantly from the 2.5 litre tank before recovery is needed.
Integrated Water Conditioner
An electronic water conditioning function reduces scale build-up in hard water areas, extending service intervals versus an unconditioned tank.
Auto-Commissioning Electronics
The control system self-commissions and calibrates on first power-up, meaning no manual adjustment is typically needed once water, vent and electrical connections are made.
Wall-Mounted, Space-Saving Design
Compact 445 x 290 x 190mm dimensions suit installation above a draining board in office kitchens or compact catering prep areas.
| Performance |
| Tank Capacity |
2.5 litres (approx. 15 cups instant dispense) |
| Boiling Capacity |
Up to 150 cups per hour (167ml cups) |
| Heating Element |
2.5kW @ 230/240V |
| Sound Pressure Level |
70dB (A-weighted), or below |
| Pressure & Water Supply |
| Rated Pressure |
0 MPa (0 bar) — vented, mains-fed |
| Minimum Supply Pressure |
0.05 MPa (0.5 bar) |
| Maximum Supply Pressure |
1.0 MPa (10 bar) |
| Water Connections |
15mm push-fit (bottom or rear entry) |
| Electrical |
| Supply Voltage |
230/240V AC |
| Circuit Requirement |
13A fused, double-pole isolating switch, min. 3mm contact separation |
| Construction & Physical |
| Finish |
White thermoplastic outer casing |
| Dimensions (H x W x D) |
445 x 290 x 190mm |
| Weight (Full) |
8.4kg |
| Ingress Protection |
IPX2 |
| Compliance |
| MPN |
95200252 |
| Warranty |
5 years product warranty |
Important Safety Information
The Supreme 150 dispenses water at or close to boiling point at all times when switched on. Site the unit over a draining board rather than directly above a sink or basin, and take particular care where children, elderly or infirm persons may have access, per Heatrae Sadia's installation instructions.
Does the Supreme 150 need to be plumbed in?
Yes — it's a permanently plumbed unit connected to the mains cold water supply, not a fill-and-forget kettle. It requires a 15mm push-fit water connection and a vent pipe run per the installation manual.
How many cups can it dispense before needing to reheat?
The 2.5 litre tank holds approximately 15 cups (167ml each) ready to dispense instantly, with the unit's fast recovery cycle allowing up to 150 cups per hour of continuous use.
What's the difference between the Supreme 150 and 150SS?
They share the same 2.5 litre capacity and 2.5kW element, but the 150SS has a stainless steel finish (MPN 95200240) rather than the white thermoplastic casing on the standard 150 (MPN 95200252) featured here.
Does it need any special electrical supply?
It requires a standard 230/240V AC supply, fused at 13A, with a double-pole isolating switch fitted with at least 3mm contact separation in both poles.
Is descaling covered under warranty?
No. Heatrae Sadia's terms exclude scale-related faults from warranty, and if the manufacturer's service team is asked to descale a unit, that work is chargeable. The built-in electronic water conditioner helps reduce scale accumulation in hard water areas.
