Baxi 250L Air Source Heat Pump Cylinder 250 Litres

Baxi 250L Air Source Heat Pump Cylinder

The Baxi 250L Air Source Heat Pump Cylinder is intended to work alongside your heat pump to provide hot water for your home. Designed and manufactured by Baxi and Heatrae Sadia, they can be used with most air source heat pumps, such as the Baxi HP40 range.

With a higher capacity than the 210L version, the 250L cylinder can easily handle larger family homes where the demand for hot water is bigger.

Features & Benefits: Baxi 250L Cylinder

• UK Built: Designed and manufactured in the UK by Baxi and Heatrae Sadia to bring you the best in British heating engineering.

• Fast Hot Water: The tank heats up fully in just 22.8 minutes, ideal for the morning rush at home.

• Compatibility: Designed to work with air source heat pumps, including the Baxi HP40 range.

• Heat Exchanger Coil: A large sized 3.0 m² heat exchanger coil (36.8 kW rating) that has been specifically designed for use with low-temperature heat pumps.

• High Capacity: The high capacity tank gives you up to 242 litres of usable hot water above 40°C.

• ErP Rating: The ErP Class C tank features 60mm of insulation to keep daily heat loss to 1.78 kWh.

• Water Pressure & Flow: Capable of delivering hot water to multiple bathrooms in your home with 1.5 bar and 20 L/min flow rate.

• Hot Water Backup: A 3 kW boost immersion and a smart backup immersion is designed for emergency use.

• Built to Last: The corrosion-resistant stainless steel tank is housed inside a tough outer steel shell.

• Size & Weight: A slim unit measuring 1767mm high and 579mm in diameter and weighing 54 kg when empty.

Suggested Heat Pump Pairings

To get the full 242 litres of usable hot water, we recommend matching it with one of the following heat pumps from the Baxi HP40 range:

• For High-Demand Homes: The Baxi HP40 8kW Monobloc Air Source Heat Pump is the most powerful in the HP40 range. The 8kW gives you extra heating power needed for homes with increased hot water needs.

• The Balanced Choice: The Baxi HP40 7kW Heat Pump is a good choice for 3 to 5-bedroom homes with high daily hot water demand but lower heating requirements overall.

Before buying, we strongly recommend that customers have an MCS-certified fitter check your required heat output by completing a BS EN 12831 room-by-room heat-loss calculation.

Build Quality & Warranty

Designed for everyday use, this cylinder is built with a stainless steel tank and steel outer casing. Baxi offers a 10-year tank warranty and a 2-year parts and labour warranty when serviced annually by a G3-qualified fitter.

Buy the Baxi 250L Online

Available to purchase today from National Heater Shops. We offer a Price Match Promise, rapid UK delivery and technical support from our HVAC team.

• Capacity: 250L
• Actual Volume: 246L
• Hot Water Capacity Above 40°C: 242L
• Cylinder Type: Unvented Air Source Heat Pump Cylinder
• Inner Vessel Material: Stainless Steel
• Coil Surface Area: 3m²
• Coil Volume: 8.9L
• Coil Heat-Up Time @ 15L/min: 22.8 Minutes
• Coil Rating @ 15L/min: 36.8kW
• Immersion Heater Rating: 3kW @ 240V / 2.7kW @ 230V
• Standing Heat Loss: 1.78kWh/24h
• Energy Efficiency Class: C
• Maximum Mains Pressure: 16bar
• Maximum Design Pressure: 6bar
• Operating Pressure: 3.5bar
• Maximum Primary Pressure: 3bar
• Water Connections: 22mm Compression
• Height: 1767mm
• Diameter: 579mm
• Empty Weight: 54kg
• Full Weight: 300kg
• Expansion Vessel: 24L
• Warranty: 2 Years
• Inner Tank Warranty: 10 Years