Cürv 250L Air Source Heat Pump Hot Water Cylinder

Product Description

The Cürv 250L Air Source Heat Pump Hot Water Cylinder is an energy-efficient, all-in-one domestic hot-water solution designed to use heat energy from the surrounding air to heat stored water.

With a nominal 246-litre tank capacity, an A+ ERP energy rating and a published COP of up to 3.41 at 15°C, the Cürv HP250M3 offers an efficient alternative to conventional direct electric water heating.

The larger 250L model is ideal where greater hot-water capacity is required, while retaining the same integrated heat-pump technology, intelligent operating modes and compact floor-standing design.

Key Features

• A+ ERP energy rating
• 246L nominal tank volume
• Up to 305L usable hot water at 40°C when set to 55°C
• Integrated air source heat pump
• COP 3.41 at 15°C
• COP 3.02 at 7°C
• 495W rated heat-pump power input
• Integrated 1500W electric backup heater
• Auto, Eco, Boost and Holiday operating modes
• Default water temperature setting of 55°C
• Water temperature range with heater of 35°C–75°C
• Suitable for ambient or exterior air extraction
• WRAS Approved
• KIWA Approved
• Magnesium rod corrosion protection
• R134a refrigerant
• IPX4 rated
• 5-year warranty

Energy-Efficient Hot Water

The Cürv uses an integrated refrigeration cycle to extract heat energy from the surrounding air and transfer it into the stored water.

The system combines an evaporator, compressor, condenser and expansion valve to produce domestic hot water efficiently, with an integrated electric backup heater available when additional heating is required.

Under the manufacturer's EN16147 test conditions, the HP250M3 achieves a published COP of 3.41 at an ambient temperature of 15°C.

Smart Operating Modes

The Cürv offers several operating modes to help match hot-water production to household requirements.

Auto Mode – Designed for convenient everyday operation.

Eco Mode – Prioritises efficient heat-pump operation.

Boost Mode – Provides additional heating when increased hot-water demand requires it.

Holiday Mode – Designed for periods when normal hot-water demand is reduced.

Technical Specifications

Hot Water Performance

Although marketed as the 250L model, the HP250M3 has a specified tank volume of 246 litres.

When operating with a 55°C cylinder setting, the manufacturer specifies up to 305 litres of usable hot water at 40°C, making it well suited to households requiring greater stored hot-water capacity.

Published heat-up times are approximately:

• 6.25 hours at 15°C ambient temperature
• 7.35 hours at 7°C ambient temperature

Actual performance and energy consumption will vary depending on incoming water temperature, ambient air temperature, installation configuration, hot-water demand and selected operating mode.

Flexible Installation

The Cürv can use air from the surrounding environment or be ducted to an appropriate external air source, providing flexibility when planning the installation.

Both the air inlet and outlet have a stated maximum duct length of 2.5 metres.

The HP250M3 measures 600mm × 629mm × 1987mm, incorporating both the heat-pump system and hot-water storage cylinder within a single floor-standing unit.

Certifications & Protection

The Cürv HP250M3 features:

• WRAS Approved Product
• KIWA Approved Product
• A+ ERP energy rating
• IPX4 protection
• Magnesium rod corrosion protection

Warranty

The Cürv Air Source Heat Pump Hot Water Cylinder is supplied with a 5-year warranty, providing additional reassurance for your investment.

Installation

This product should be installed by a suitably competent professional in accordance with the manufacturer's installation instructions and all applicable UK plumbing, electrical and building regulations.

The installation location, air intake and exhaust arrangement, electrical supply and household hot-water requirements should all be assessed before installation.