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The Megaflo Eco Slimline Indirect 200L Unvented Hot Water Cylinder is a space-saving hot water storage solution designed for properties where a conventional-width cylinder may not fit. With a 200-litre nominal capacity and a slimline diameter of just 491mm, it provides substantial hot water storage while helping make efficient use of available installation space.
Designed for indirect heating from a boiler, this Megaflo Eco cylinder also features a 3kW backup immersion heater for additional heating flexibility. Its 50mm CFC-free polyurethane foam insulation helps reduce standing heat loss, while the internal floating baffle eliminates the need for an external expansion vessel. Supplied with factory-fitted safety and installation components, it offers a practical solution for domestic hot water systems.
200L Capacity
Slimline Design
Indirect Heating
3kW Backup Immersion
Kiwa Approved
Maximum Flow at 3 Bar
70L/min
Applications & Suitability
The Megaflo Eco Slimline Indirect 200L cylinder is designed for domestic hot water installations that require mains-pressure hot water storage in a narrow cylinder format. Its indirect heating arrangement allows a compatible boiler to heat the stored water, with an immersion heater available as a backup heat source.
- Homes requiring a 200-litre unvented hot water cylinder.
- Properties with restricted installation width where a slimline cylinder is preferred.
- Domestic hot water systems heated indirectly by a compatible boiler.
- Installations requiring a 3kW backup immersion heater.
- Replacement or upgrade projects where the cylinder dimensions and system specifications are suitable.
Key Features & Benefits
Slimline 491mm Diameter
The narrow cylinder body is designed to help accommodate hot water storage in spaces where a standard-width cylinder may not be suitable.
200-Litre Hot Water Storage
The nominal 200-litre capacity provides a substantial stored hot water supply for suitable domestic installations.
Indirect Boiler Heating
Designed to heat stored water using a compatible boiler, making it suitable for indirect domestic hot water systems.
3kW Backup Immersion Heater
The included 3kW immersion heater provides an alternative method of heating stored water when required. Its stated electrical rating is 240V.
50mm CFC-Free Insulation
The 50mm CFC-free polyurethane foam insulation helps limit heat loss, with a specified standing heat loss of 1.94kWh per 24 hours.
Internal Floating Baffle
The internal floating baffle means an external expansion vessel is not required, according to the supplied product information.
Factory-Fitted Safety Components
Supplied with a temperature and pressure relief valve, 3-bar pressure relief valve and tundish to support the cylinder's safety arrangements.
UK-Made & Kiwa Approved
The supplied specifications identify the cylinder as Kiwa approved and made in the UK.
Performance & Hot Water Delivery
The Megaflo Eco Slimline Indirect 200L is specified with a maximum flow rate of 70 litres per minute at 3 bar. Its listed heat-up time is 35 minutes at a primary flow rate of 15 litres per minute and a primary temperature of 80°C.
Actual hot water performance and recovery will depend on the installation, incoming mains conditions, boiler output and operating settings. Check the manufacturer's technical documentation to confirm suitability for the property's demand.
Key Specifications
| Product Name |
Megaflo Eco Slimline Indirect 200L |
| Product Code |
7034091 |
| Product Type |
Indirect unvented hot water cylinder |
| Nominal Capacity |
200 litres |
| Height |
2079mm |
| Diameter |
491mm |
| Weight (Empty / Full) |
48kg / 243kg |
| Standing Heat Loss |
1.94kWh/24h |
| Maximum Flow Rate at 3 Bar |
70 litres/minute |
| Heat-Up Time |
35 minutes at 15L/min and 80°C primary temperature |
| Backup Immersion Heater |
1 × 3kW at 240V |
| Operating Pressure |
3 bar |
| Maximum Mains Pressure |
16 bar |
| Insulation |
50mm CFC-free polyurethane foam |
| ERP Rating |
C |
| Approval |
Kiwa approved |
| Country of Manufacture |
United Kingdom |
Factory-Fitted Components
The supplied product information lists the following factory-fitted components with the Megaflo Eco Slimline Indirect 200L cylinder:
- Temperature and pressure (T&P) relief valve.
- 3-bar pressure relief valve (PRV).
- Tundish.
- Wiring centre.
- 2-port motorised valve.
- One 3kW backup immersion heater.
Installation & Compatibility
Before selecting this cylinder, check the available installation height and width against its specified dimensions of 2079mm high × 491mm diameter. Allow for any additional clearance, pipework and servicing access required by the installation instructions.
As an unvented hot water cylinder, installation, commissioning and maintenance must comply with applicable regulations and the manufacturer's instructions. A suitably qualified and appropriately certified installer should confirm system compatibility, pressure conditions, safety arrangements and electrical requirements.
Frequently Asked Questions
What is the capacity of the Megaflo Eco Slimline Indirect cylinder?
It has a nominal storage capacity of 200 litres, making it suitable for domestic hot water systems that require this storage volume.
What are the dimensions of this 200L cylinder?
The supplied specifications list a height of 2079mm and a diameter of 491mm. Check access routes and installation clearances before ordering.
Does the cylinder have an immersion heater?
Yes. The listed configuration includes one 3kW backup immersion heater rated at 240V.
What is the standing heat loss?
The specified standing heat loss is 1.94kWh over 24 hours. The cylinder uses 50mm CFC-free polyurethane foam insulation.
What is the maximum flow rate?
The supplied specification states a maximum flow rate of 70 litres per minute at 3 bar. Actual performance depends on the installation and available mains conditions.
Does it need an external expansion vessel?
The supplied product details state that its internal floating baffle means an external expansion vessel is not required. Confirm the complete system arrangement against the manufacturer's installation instructions.
What is the ERP rating?
The listed ERP rating is C.
Compact Hot Water Storage Without Compromising Capacity
The Megaflo Eco Slimline Indirect 200L Unvented Cylinder (7034091) combines a 200-litre capacity with a slimline 491mm diameter, indirect boiler heating, a 3kW backup immersion heater and 50mm CFC-free insulation. With stated flow performance of up to 70L/min at 3 bar and factory-fitted safety components, it is a practical option for suitable domestic hot water installations where space is limited.
