COMM+ System
GREENSEED® Pioneering Intelligent Commercial Hot Water Solutions Since 2012
GreenSeed® COMM+ (by GStech) is a premium tankless commercial hot water system that links two to five continuous-flow gas water heaters on one pre-assembled manifold. Its Advanced Integrated Manifolded system (AIMs) and mass-flow pump technology balance hot and cold water pressure. That gives full mains-pressure hot water without storage tanks, for a smaller plant footprint and higher plant efficiency. COMM+ delivers up to 108 litres per minute at a 35 °C rise. It fires only as many heaters as demand needs, with automatic hot backup built in. It runs on natural gas (NG) or LPG, is CE certified, and suits both dead-leg and recirculation systems
Why choose GreenSeed® COMM+
- No storage tanks: a smaller plant footprint and no tank to maintain
- Mains-pressure performance: full pressure delivery without tanks
- Mass-flow technology: balances hot and cold water pressure for stable delivery
- AIMs manifold: links every unit and fires each one on demand
- Hot backup: built-in redundancy keeps hot water running if one unit is offline
- NG or LPG: available for natural gas or LPG supply
- Fast installation: delivered as a single pre-assembled skid or wall unit
Applications
- Rubber glove factories: high-volume process hot water
- Process industry: wash-down and processing
- Food & beverage: kitchens, sanitising and CIP
- Hotels & resorts: guest showers at peak load
- Commercial laundry: back-to-back hot cycles
- Hospitals: reliable clinical hot water
SPECIFICATIONS
Technical specifications
| Model | COMM+2 I/E | COMM+3 I/E | COMM+4 I/E | COMM+5 I/E |
|---|---|---|---|---|
| Input (NG/LPG), kWh | 120 | 180 | 240 | 300 |
| Max flow @ 35°C rise, L/min | 43 | 65 | 86 | 108 |
| Approx. weight, kg | 51 | 76 | 101 | 127 |
| Electrical (240V/50Hz), W | 160 | 240 | 320 | 400 |
| Approx. width, mm | 768 | 1152 | 1536 | 1920 |
| Approx. height, mm | 1300 | 1300 | 1300 | 1300 |
| Approx. depth, mm | 500 | 500 | 500 | 500 |
| Mounting options | Wall / Skid | Wall / Skid | Wall / Skid | Wall / Skid |
COMM+2 I/E
- Input (NG/LPG), kWh
- 120
- Max flow @ 35°C rise, L/min
- 43
- Approx. weight, kg
- 51
- Electrical (240V/50Hz), W
- 160
- Approx. width, mm
- 768
- Approx. height, mm
- 1300
- Approx. depth, mm
- 500
- Mounting options
- Wall / Skid
COMM+3 I/E
- Input (NG/LPG), kWh
- 180
- Max flow @ 35°C rise, L/min
- 65
- Approx. weight, kg
- 76
- Electrical (240V/50Hz), W
- 240
- Approx. width, mm
- 1152
- Approx. height, mm
- 1300
- Approx. depth, mm
- 500
- Mounting options
- Wall / Skid
COMM+4 I/E
- Input (NG/LPG), kWh
- 240
- Max flow @ 35°C rise, L/min
- 86
- Approx. weight, kg
- 101
- Electrical (240V/50Hz), W
- 320
- Approx. width, mm
- 1536
- Approx. height, mm
- 1300
- Approx. depth, mm
- 500
- Mounting options
- Wall / Skid
COMM+5 I/E
- Input (NG/LPG), kWh
- 300
- Max flow @ 35°C rise, L/min
- 108
- Approx. weight, kg
- 127
- Electrical (240V/50Hz), W
- 400
- Approx. width, mm
- 1920
- Approx. height, mm
- 1300
- Approx. depth, mm
- 500
- Mounting options
- Wall / Skid
Electrical supply includes the gas water heater only. Specifications are approximate and subject to change without prior notice.
FAQ
Frequently asked questions
COMM+ is a tankless commercial hot water system from GreenSeed®. It links two to five continuous-flow gas water heaters on one manifold, delivering up to 108 L/min of mains-pressure hot water without storage tanks.
COMM+ combines the AIMs manifold with mass-flow pump technology to balance hot and cold water pressure, so it delivers stable mains-pressure hot water straight from the heaters.
The Advanced Integrated Manifolded (AIM) system is unique to COMM+. It links every heater and fires units automatically by real-time demand: one at low draw, more as demand rises, with no manual staging.
From 43 L/min (COMM+2) to 108 L/min (COMM+5) at a 35 °C temperature rise.
COMM+ is tankless: it uses manifolded continuous-flow heaters with mass-flow control and needs no storage. TANK+ adds a 500 L storage tank to buffer peak simultaneous demand.
Yes. Every COMM+ model is available for natural gas (NG) or LPG.
Yes. COMM+ suits both dead-leg and recirculation systems, with no cold spots.
Rubber glove factories, process industries, food and beverage, hotels and resorts, commercial laundries and hospitals.
A 1-year general warranty on materials and workmanship, and it is CE certified.