OSO AquaSustain DHP 200 Litre Integrated Heat Pump Cylinder

The OSO AquaSustain DHP 200 Litre Integrated Heat Pump Cylinder is an environmentally friendly, efficient hot water cylinder with an integrated air-source heat pump designed for domestic hot water production in homes, offering high energy efficiency and low carbon emissions.

Product Description

The AquaSustain DHP combines a stainless steel hot water cylinder in the lower section with an air-source heat pump in the upper section, using eco-friendly R290 refrigerant. It extracts thermal energy from ambient air to heat water up to 60°C (or 70°C with immersion), providing up to 3.5 times more heating energy than electrical input (CoP). With automatic operation and low maintenance, it is ideal for modern homes, new builds, and retrofits aiming for sustainability and reduced energy costs.

Key Features

• Integrated heat pump: Air-source design with CoP up to 3.5 for efficient heating.
• Stainless steel cylinder: Durable construction with 5-year warranty.
• Eco-friendly refrigerant: R290 with GWP 3 and ODP 0.
• Single footprint: Compact all-in-one unit saves space.
• Backup immersion heater: 1.5 kW for additional heating or boost.
• Energy efficient: A+ ErP rating, 133% efficiency, low heat loss.
• Automatic operation: No regular user intervention needed; heats slowly over hours.

Technical Specifications

• Model: AQUASUSTAIN – DHP 200 – Integrated Heat Pump Cylinder.
• Storage volume: 200 litres.
• Maximum storage temperature: 60 °C (70 °C with immersion).
• Standing heat loss: 67 W / 1.57 kWh per 24 h.
• ErP rating: A+.
• Energy efficiency: 133%.
• Annual energy consumption (AEC): 830 kWh/year.
• Immersion heater power: 1.5 kW.
• Refrigerant: R290.
• Heat up time (ECO mode): 372 minutes.
• Tapping profile: L.
• P&T valve: 10 bar, 90–95 °C.

Dimensions & Weights

• Width: 584 mm.
• Depth: 624 mm.
• Height: 1540 mm.
• Dry weight: 80 kg.
• Full weight: 280 kg.

System & Application Notes

• Ideal for domestic properties seeking sustainable hot water solutions with low running costs.
• Compatible with internal or external air intake (MEV version); air can be ducted.
• Includes G3 building regulations kit with 18L expansion vessel.
• Suitable for multipoint use; heats water slowly, so plan for peak demand.
• Installation by qualified heating engineers following OSO guidelines; requires electrical and plumbing connections.
• 5-year warranty on the cylinder; do not switch off unless property is unoccupied for over 24 hours.