The Megaflo Eco Slimline Direct 125L is a compact unvented hot water cylinder designed for homes where a standard-width cylinder may not fit. With a slimline 491mm diameter, it provides up to 70 l/min at 3 bar and uses two titanium immersion elements for reliable performance. The internal floating baffle eliminates the need for an external expansion vessel, while 50mm CFC-free polyurethane foam insulation helps reduce standing heat loss.
125L Capacity
Slimline 491mm Diameter
2 × 3kW Titanium Immersions
Kiwa Approved
Maximum Flow
70 l/min @ 3 bar
Applications & suitability
Compact Homes
Suitable for homes where a standard-width hot water cylinder cannot be accommodated.
Slimline Installations
The 491mm diameter provides a narrow footprint for space-conscious installations.
Direct Hot Water
Uses two 3kW titanium immersion elements to heat the stored hot water.
Hard Water Areas
Titanium immersion elements are supplied as standard for hard water durability.
Key specifications
| Nominal Capacity |
125 litres |
| Height |
1440mm |
| Diameter |
491mm |
| Weight Empty / Full |
33kg / 162kg |
| Standing Heat Loss |
1.38 kWh/24h |
| Maximum Flow at 3 Bar |
70 l/min |
| Immersion |
2 × 3kW @ 240V Titanium |
| Operating Pressure |
3 bar |
| Maximum Mains Pressure |
16 bar |
| ERP Rating |
C |
| Product Code |
7034083 |
Installation & compatibility
The Megaflo Eco Slimline Direct 125L is an unvented hot water cylinder designed for direct heating using its integrated immersion elements. It includes a factory-fitted T&P valve, 3 bar PRV, tundish and unvented kit. The internal floating baffle means no external expansion vessel is required.
Design & performance benefits
Slimline Footprint
The 491mm diameter is designed for installations where available width is limited.
Titanium Immersions
Two 3kW titanium immersion elements are supplied as standard.
High Flow Rate
Delivers up to 70 l/min at 3 bar for mains-pressure hot water delivery.
Insulated Construction
50mm CFC-free polyurethane foam insulation helps limit standing heat loss.
Additional installation features
Factory-Fitted Safety Components
Includes T&P valve, 3 bar PRV, tundish and unvented kit.
Internal Expansion Arrangement
Internal floating baffle removes the need for a separate external expansion vessel.
UK Manufactured
Made in the UK and Kiwa approved, with an ERP rating of C.
Ideal for
The Megaflo Eco Slimline Direct 125L is ideal for homes requiring a compact 125 litre unvented hot water cylinder with a slim 491mm footprint. Its two titanium immersion elements, internal floating baffle, factory-fitted unvented components and 50mm insulation make it a practical option for space-conscious direct hot water installations.
At GetPlumb, we strive to provide reliable and cost-effective delivery options to our customers. Please review our shipping policy below.
🆓 Free Local Delivery (Orders £100 & above)
We offer FREE delivery on orders £100 or more
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For orders that do not qualify for free delivery, standard
shipping rates apply based on total cart weight.
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This rate applies only to Harvey’s block salt products.
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Examples:
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For oversized items where the product length is 1.5 metres or more:
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Customers can also choose to collect their order from our store in
Reading, UK, at no additional charge. For any questions regarding shipping, please contact our support team at online@getplumb.co.uk.
