The Megaflo Eco Direct 300 Litre Hot Water Cylinder (95050474) is a high-capacity unvented hot water storage solution designed for large residential properties with high hot water demand. Featuring three 3kW titanium immersion heaters with a combined output of 9kW, this direct hot water cylinder delivers powerful electric water heating and a stated full heat-up time of 97 minutes when all elements are operating.
Designed for reliable performance and efficient heat retention, the Megaflo Eco Direct 300L cylinder features 60mm of CFC-free polyurethane foam insulation and an internal floating baffle, eliminating the need for a separate external expansion vessel. With a maximum flow rate of 76 litres per minute at 3 bar, a C energy performance rating and a lifetime guarantee for domestic installations, it is a practical choice for properties requiring substantial stored hot water.
300L Capacity
9kW Total Output
3 Titanium Immersion Heaters
C Energy Rating
Lifetime Domestic Guarantee
At a Glance
Nominal Capacity
300 Litres
Combined Heater Output
9 kW
Full Heat-Up Time
97 Minutes
Maximum Flow Rate
76 L/min
Applications & Compatibility
The Megaflo Eco Direct 300L unvented hot water cylinder is designed for properties requiring a large stored hot water supply with direct electric heating.
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Large residential properties: Provides substantial hot water storage for homes with multiple bathrooms and high simultaneous demand.
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High-demand households: Three immersion heaters provide a combined 9kW output for the stated rapid full-cylinder heat-up performance.
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Direct electric hot water systems: Heats stored water using electric titanium immersion elements rather than a primary boiler coil.
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High-flow applications: The stated maximum flow rate of 76 litres per minute at 3 bar supports installations designed for substantial hot water delivery.
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New installations and replacements: Can be considered for suitable unvented hot water systems where the electrical supply, installation space and water demand meet the product requirements.
Installation Note:
Check the available installation space, electrical supply capacity, water pressure and floor loading before ordering. The cylinder has a listed full weight of 339 kg and a combined immersion heater rating of 9kW. Unvented cylinders must be installed and commissioned by a suitably qualified professional in accordance with the manufacturer's instructions and applicable regulations.
Key Specifications
| Product Information |
| Product Name |
Megaflo Eco Direct 300L Hot Water Cylinder (3-Immersion) |
| Product Code |
95050474 |
| Brand |
Megaflo |
| Product Type |
Direct Unvented Hot Water Cylinder |
| Nominal Capacity |
300 litres |
| ERP Rating |
C |
| Guarantee |
Lifetime guarantee for domestic installations, subject to terms |
| Manufacturing Origin |
Made in the UK |
| Dimensions & Weight |
| Height |
2053 mm |
| Width |
579 mm |
| Depth |
600 mm |
| Empty Weight |
57 kg |
| Full Weight |
339 kg |
| Heating & Performance |
| Number of Immersion Heaters |
3 |
| Immersion Heater Type |
Titanium |
| Individual Heater Rating |
3 kW each |
| Total Heater Output |
9 kW |
| Heater Voltage |
240 V |
| Full Heat-Up Time |
97 minutes with all elements operating |
| Maximum Flow Rate at 3 Bar |
76 litres per minute |
| Insulation & Operating Conditions |
| Insulation Material |
CFC-free polyurethane foam |
| Insulation Thickness |
60 mm |
| Standing Heat Loss |
1.69 kWh/24 hours |
| Operating Pressure |
3 bar |
| Expansion Arrangement |
Internal floating baffle; no external expansion vessel required |
| Factory-Fitted Safety Components |
Temperature and pressure (T&P) valve, 3 bar pressure-reducing valve (PRV), tundish and unvented kit |
Key Features & Benefits
1. Large 300-Litre Hot Water Capacity
The 300-litre nominal storage capacity is designed for large households and properties with substantial hot water demand, including installations with multiple bathrooms.
2. Three Titanium Immersion Heaters
Three 3kW titanium immersion elements provide a combined 9kW heating output, with a stated full-cylinder heat-up time of 97 minutes when all elements operate.
3. 60mm Thermal Insulation
The 60mm CFC-free polyurethane foam insulation helps retain stored hot water temperature and supports a listed standing heat loss of 1.69 kWh per 24 hours.
4. Integrated Expansion Design
The internal floating baffle removes the need for a separate external expansion vessel, helping create a more integrated hot water cylinder installation.
5. Factory-Fitted Unvented Safety Kit
The listed factory-fitted components include a temperature and pressure valve, 3 bar PRV, tundish and unvented kit to support the specified installation arrangement.
6. High Flow Rate & Lifetime Guarantee
A stated maximum flow rate of 76 litres per minute at 3 bar supports high-demand applications. The cylinder carries a lifetime guarantee for domestic installations, subject to the manufacturer's terms.
What's Included?
- Megaflo Eco Direct 300L hot water cylinder (95050474)
- Three 3kW titanium immersion elements, as specified for the 3-immersion model
- Factory-fitted temperature and pressure (T&P) valve
- 3 bar pressure-reducing valve (PRV)
- Tundish
- Unvented installation kit
Confirm the final package contents and current guarantee terms with the supplier before ordering.
Who Is This Cylinder For?
The Megaflo Eco Direct 300L cylinder is designed for homeowners, plumbers, heating engineers and installers looking for a high-capacity direct electric hot water storage solution. Its three immersion heaters, integrated expansion arrangement and factory-fitted unvented components make it suitable for consideration in large residential properties where electrical capacity, available space and hot water demand support this configuration.
Installation & Setup
- Check the installation space and access route against the cylinder dimensions of 2053 mm high, 579 mm wide and 600 mm deep.
- Ensure the installation can safely support the listed full weight of 339 kg.
- Confirm that the electrical installation is suitable for three 3kW immersion heaters and the required 9kW combined output.
- Verify the water supply pressure and installation requirements against the manufacturer's instructions.
- Ensure the safety valves, tundish and discharge arrangements are installed correctly.
- Have the cylinder installed and commissioned by suitably qualified professionals in accordance with applicable unvented-cylinder regulations.
Frequently Asked Questions
1. What is the capacity of the Megaflo Eco Direct 300L cylinder?
The Megaflo Eco Direct has a nominal storage capacity of 300 litres, making it suitable for properties with substantial domestic hot water requirements.
2. How many immersion heaters does this model have?
This configuration has three 3kW titanium immersion heaters, providing a combined heating output of 9kW when all elements are operating.
3. How long does the cylinder take to heat up?
The stated full heat-up time is 97 minutes with all three immersion elements operating. Actual performance can vary with incoming water temperature, electrical supply and operating conditions.
4. Does the Megaflo Eco Direct 300L require an external expansion vessel?
The supplied product information specifies an internal floating baffle, which means a separate external expansion vessel is not required for the stated design. Follow the manufacturer's installation instructions.
5. What is the standing heat loss?
The listed standing heat loss is 1.69 kWh over 24 hours. The cylinder uses 60mm CFC-free polyurethane foam insulation to help reduce heat loss.
6. What guarantee is provided?
The supplied information lists a lifetime guarantee for domestic installations. Check the manufacturer's current terms, exclusions and installation or registration requirements.
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