The Dentwiton HS Series is an all-in-one air-to-water heat pump water heater designed for residential domestic hot water applications. Featuring a high-efficiency monobloc structure, enamel-lined water tank, and micro-channel heat exchanger, the HS Series delivers reliable hot water supply with low noise, high durability, and excellent energy efficiency. Using natural refrigerant R290, it offers an environmentally friendly solution with stable performance and long service life.
The DTHW Series integrates the heat pump unit and domestic hot water tank into a single compact structure. This all-in-one configuration significantly reduces installation complexity, shortens installation time, and minimizes on-site piping work—making it ideal for residential projects and retrofit applications
The internal water tank is coated with high-quality enamel using advanced spraying and firing technology. Combined with a magnesium anode, this design ensures:
Excellent corrosion resistance
Long-term hygiene and water safety
Stable operation under high pressure
The tank structure meets international durability standards and is designed for long service life in various water conditions
The DTHW Series adopts an external micro-channel heat exchanger, providing:
Faster heat transfer response
Higher heat exchange efficiency
Reduced refrigerant charge
This design enables rapid hot water production with improved system efficiency and reduced energy consumption
With optimized system design, the DTHW Series can deliver hot water temperatures up to 65°C, ensuring:
Stable and continuous hot water supply
Support for multiple water outlets
Comfort even during peak demand periods
Powered by the natural refrigerant R290 (GWP = 3), the DTHW Series achieves high COP values and reduced carbon emissions. The system offers excellent energy-saving performance while complying with European environmental and efficiency standards.
The system is engineered for low-noise operation and includes multiple safety protections such as:
Pressure protection
Anti-freeze control
Electric backup heater for reliability
This ensures safe, stable, and comfortable daily operation for residential users
| Item | DTHW12-200D/N6E1 | DTHW16-300D/N6E1 |
| Power supply | 220–240V~, 1Ph, 50Hz | 220–240V~, 1Ph, 50Hz |
| Nominal tank volume | 200 L | 300 L |
| ErP level (7/6°C, Average climate) | A+ | A+ |
| Heating capacity @20/15°C (Indoor air) | 1130 W | 1600 W |
| Heating capacity @7/6°C (Average climate) | 850 W | 1210 W |
| Electric backup heater (EBH) | 1500 W | 1500 W |
| Input power (Heat pump only) | 276 W | 395 W |
| COP @20/15°C (Indoor air) | 4.1 | 4.05 |
| COP @7/6°C (Average climate) | 3.1 | 3.2 |
| Max. leaving water temperature | 65°C | 65°C |
| Hot water yield @20/15°C | 24 L/h | 34 L/h |
| Working ambient temperature | –10°C to 43°C | –10°C to 43°C |
| Sound power level | 57 dB(A) | 59 dB(A) |
| Water resistance | IPX1 | IPX1 |
| Refrigerant / charge | R290 / 150 g | R290 / 150 g |
| Expansion valve | Electronic | Electronic |
| Compressor | GMCC | GMCC |
| Inner tank material | Enamel | Enamel |
| Inner tank diameter | Ø470 mm | Ø540 mm |
| Usable storage volume | 193 L | 294 L |
| Insulation | Polyurethane | Polyurethane |
| Max. inner tank pressure | 8 bar | 8 bar |
| Condenser coil | External Micro-channel | External Micro-channel |
| Inlet / outlet water connection | DN20 | DN20 |
| Condensing water connection | 1/4" internal thread | 1/4" internal thread |
| Unit dimensions (Ø × H) | 570 × 1780 mm | 640 × 2010 mm |
| Packing dimensions | 645 × 645 × 1980 mm | 740 × 740 × 2200 mm |
| Net / Gross weight | 91 / 102 kg | 113 / 125 kg |
Add：8F, Xinghe Business Tower, 89 Jiefang Road, Hangzhou, Zhejiang, China 
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