Rheem Eclipse 27kW 3-Phase Continuous Flow Electric Water Heater
SunCity Hot Water supplies, installs, services and repairs the Rheem Eclipse 27kW 3-Phase Continuous Flow Electric Water Heater across the Sunshine Coast, Brisbane, Bribie Island and Gympie — endless instant hot water with no storage tank, ideal for apartments. Call 1300 728 122.
- 27kW 3-phase, up to 12 L/min
- Ideal for apartments
- No storage, no standby loss
- 5-year residential warranty
The Rheem Eclipse 3-Phase Electric Instantaneous
The Rheem Eclipse is a smart, energy-efficient 3-phase electric instantaneous water heater designed for apartments and commercial buildings. It delivers reliable hot water on demand without the heat loss of central storage — a sustainable, higher-efficiency solution.
A touch-screen display shows your water consumption and flow rate, with three memory modes for child-safe, bath and preset temperatures. Flexible installation options conceal the inlet, outlet and electrical connections through the wall or from the bottom, and an automatic sleep mode saves energy.
SunCity Hot Water supplies, installs, services and repairs the Rheem Eclipse across South-East Queensland. Call 1300 728 122 and we'll help you choose the right size.
Why the Rheem Eclipse?
Reliable, efficient 3-phase instant hot water, built for modern apartments and commercial buildings.
3-Phase Electric Instantaneous
Reliable instant hot water on demand — no central storage tank, so there's no standby heat loss.
Built for Apartments & Commercial
Designed as an efficient 3-phase solution for apartments, high-rise and commercial buildings.
Energy Efficient
Only heats water as you use it, with an automatic sleep mode for further energy savings.
Touch-Screen Display
Shows water consumption and flow rate, with three memory modes (child-safe, bath and preset).
Flexible & Fast Install
Concealed inlet, outlet and electrical connections through the wall or from the bottom — compact footprint.
50°C & 60°C Models
Available in 18kW and 27kW, in 50°C and 60°C maximum output versions to suit the site.
Technical Specifications
Full specifications for the Rheem Eclipse 18kW & 27kW 3-phase range.
| Specification | 18kW 50°C | 18kW 60°C | 27kW 50°C | 27kW 60°C |
|---|---|---|---|---|
| Model number | 6C318500A | 6C318600A | 6C327500A | 6C327600A |
| Rated power | 18 kW | 18 kW | 27 kW | 27 kW |
| Amps / phase | 26 A | 26 A | 37.6 A | 37.6 A |
| Electrical connection | 380–415V 3-Phase 50Hz | 380–415V 3-Phase 50Hz | 380–415V 3-Phase 50Hz | 380–415V 3-Phase 50Hz |
| Max. flow rate* | 7.4–7.7 L/min | 7.4–7.7 L/min | 12 L/min | 12 L/min |
| Min. activation flow | 2.8 L/min | 2.8 L/min | 2.8 L/min | 2.8 L/min |
| Temperature control range | 30–55 °C | 30–60 °C | 30–55 °C | 30–60 °C |
| Element numbers | 3 | 3 | 4 | 4 |
| Water pressure (min / max) | 100 / 750 kPa | 100 / 750 kPa | 100 / 750 kPa | 100 / 750 kPa |
| IP rating | IP25 | IP25 | IP25 | IP25 |
| Dimensions (H×W) | 470×226 mm | 470×226 mm | 470×226 mm | 470×226 mm |
| Weight | 4.5 kg | 4.5 kg | 4.5 kg | 4.5 kg |
| Approvals | WaterMark / AS3498 | WaterMark / AS3498 | WaterMark / AS3498 | WaterMark / AS3498 |
*Maximum flow rate at dynamic supply pressure 500kPa. Specifications from the Rheem Eclipse brochure — refer to AS/NZS3500.4 and local requirements for installation. Data may change without notice.
Rheem Eclipse Brochure
Full specifications, dimensions & features (PDF).
Backed by warranty
Reliable, Efficient, Guaranteed
The Rheem Eclipse is WaterMark-certified and lead-free, and every installation is backed by our own quality workmanship guarantee.
Residential
Commercial
Comparing options? See all instant hot water systems, including the German-engineered Stiebel Eltron DHE 27 and DEL 18 Plus.
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SunCity Hot Water supplies and installs all types of hot water systems, including electric hot water systems, gas hot water systems, solar hot water systems and heat pump hot water systems. Call 1300 728 122 for same-day service.
Our local technicians are part of the SunCity Brisbane hot water systems and Sunshine Coast hot water systems service network — available for same-day hot water system repairs and replacement across South East Queensland. Call 1300 728 122 for same-day service.
FAQs
Rheem Eclipse — Frequently Asked Questions
What is the Rheem Eclipse?
The Rheem Eclipse is a 3-phase electric instantaneous (continuous flow) water heater. It heats water on demand as it flows through the unit — with no storage tank, so there's no standby heat loss. It's designed as an efficient, reliable hot water solution for apartments and commercial buildings.
What sizes and models does the Rheem Eclipse come in?
The Eclipse comes in 18kW and 27kW 3-phase models, each available in 50°C and 60°C maximum output versions (6C318500A, 6C318600A, 6C327500A, 6C327600A). The 27kW delivers up to 12 L/min. We'll size the right model for your home or building.
Does the Rheem Eclipse need a tempering valve?
The 50°C models can be installed without any further tempering in accordance with AS/NZS3500.4, and include trade adjustability for the desired temperature at the tap per AS3498. The 60°C models allow higher output where required. We'll confirm what your installation needs.
Is the Rheem Eclipse good for apartments?
Yes — the Eclipse is purpose-designed for apartments, high-rise and commercial buildings as a 3-phase electric instantaneous system. With no central storage, it avoids standby heat loss and suits modern strata and commercial hot water needs.
What warranty does the Rheem Eclipse have?
The Rheem Eclipse comes with a 5-year residential warranty (1-year commercial), backed by our own quality workmanship guarantee on installation.
Do you install and repair the Rheem Eclipse?
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