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Wall mounted combi non-condensing gas boiler with closed chamber
Our wall hung combination gas boiler delivers instant hot water and efficient central heating. Ideal for homes and apartments, it eliminates the need for a water storage tank, saving space and reducing energy waste. With 92%+ thermal efficiency, this is the perfect eco-friendly gas heating solution for modern households.
Our production facility covers over 28,000 m², specializing in advanced heating equipment including modular boilers and intelligent control systems. With an annual capacity of 200,000 units, we utilize state-of-the-art automated production lines and simulation labs to ensure uncompromising quality.



| Model | Unit | 18kw | 20kw | 24kw | 28kw | 32kw | 36kw | 40kw | 45kw |
|---|---|---|---|---|---|---|---|---|---|
| Gas Type | - | NG / LPG | |||||||
| Rated Heat Load (CH) | kw | 18/6.3 | 20/7 | 24/8.5 | 28/9.8 | 32/11.2 | 36/12.6 | 40/14 | 45/16.5 |
| Thermal Efficiency | % | 92 | 92 | 92 | 92 | 92 | 92 | 92 | 92 |
| Water Temp Range | °C | 30/80 | |||||||
| Water Capacity (Δt=25℃) | kg/min | 8.3 | 10.3 | 12.6 | 14.6 | 16.8 | 18.6 | 20.6 | 23.2 |
| Heating Area | m² | 65-110 | 70-120 | 90-150 | 120-200 | 160-260 | 200-310 | 250-360 | 290-420 |



Retro Pumps