The Megaflo Eco Slimline Direct 170L is a compact unvented hot water cylinder designed for homes where a standard-width cylinder cannot fit. With a slimline diameter of just 491mm, it provides 170 litres of hot water storage while maintaining a compact footprint. The cylinder delivers up to 70 l/min at 3 bar and requires no pump or header tank. Fitted with 2 × 3kW titanium immersion elements as standard, it offers durability for installations where hard water performance is important. The internal floating baffle eliminates the need for an external expansion vessel, while the factory-fitted T&P valve, pressure relief valve, tundish and unvented kit help provide a comprehensive installation package.
170 Litre Capacity 491mm Slimline Diameter 2 × 3kW Titanium Elements ERP Rating C
Nominal Capacity
170L
Hot water storage
Cylinder Diameter
491mm
Slimline footprint
Immersion Elements
6kW
2 × 3kW @ 240V
Maximum Flow
70 l/min
At 3 bar
Applications & suitability
Space-Constrained Homes
The 491mm diameter makes this cylinder suitable for homes where a standard-width hot water cylinder cannot be accommodated.
170L Hot Water Storage
Provides 170 litres of nominal hot water storage in a compact slimline cylinder format.
Hard Water Areas
Titanium immersion elements are supplied as standard for durability in hard water installations.
Unvented Systems
The unvented design operates at 3 bar and includes factory-fitted safety components and an internal floating baffle.
Key specifications
| Product |
Megaflo Eco Slimline Direct 170L |
| Product Type |
Direct Unvented Hot Water Cylinder |
| Product Code |
7034085 |
| Nominal Capacity |
170 litres |
| Height |
1883mm |
| Diameter |
491mm |
| Weight Empty / Full |
42kg / 218kg |
| Standing Heat Loss |
1.72 kWh/24h |
| Max Flow at 3 Bar |
70 l/min |
| Immersion |
2 × 3kW @ 240V |
| Operating Pressure |
3 bar |
| Max Mains Pressure |
16 bar |
| Insulation |
50mm CFC-Free Polyurethane Foam |
| Immersion Elements |
2 × 3kW Titanium |
| Expansion Vessel |
Internal Floating Baffle |
| ERP Rating |
C |
| Approval |
Kiwa Approved |
| Manufacturing |
Made in the UK |
Installation & compatibility
Compact unvented installation: The Megaflo Eco Slimline Direct 170L is designed for direct unvented hot water systems and requires no pump or header tank. Its internal floating baffle removes the need for an external expansion vessel. Factory-fitted components include the temperature and pressure relief valve, 3 bar pressure relief valve, tundish and unvented kit, providing the essential components for the cylinder installation.
Design & performance benefits
Slimline Footprint
At just 491mm in diameter, the cylinder is designed to fit into spaces where a standard-width cylinder may not be suitable.
Titanium Immersion Elements
Two 3kW titanium immersion elements are fitted as standard, offering a durable heating solution for hard water applications.
High Flow Rate
The cylinder can deliver a maximum flow rate of 70 l/min at 3 bar according to the supplied specification.
50mm Insulation
50mm CFC-free polyurethane foam insulation supports the specified standing heat loss of 1.72 kWh/24h.
Additional installation features
Internal Floating Baffle
The integrated floating baffle provides internal expansion capacity without requiring a separate external expansion vessel.
Factory-Fitted Safety Components
Supplied with factory-fitted T&P valve, 3 bar pressure relief valve, tundish and unvented kit.
Direct System Design
The direct unvented configuration uses immersion heating and does not require a pump or header tank.
Ideal for
The Megaflo Eco Slimline Direct 170L Unvented Hot Water Cylinder is ideal for homes requiring reliable hot water storage where available installation space is restricted. Its 491mm slimline diameter, 170-litre capacity, 50mm CFC-free insulation and internal floating baffle make it a practical choice for compact installations. With two 3kW titanium immersion elements, a maximum flow rate of 70 l/min at 3 bar, factory-fitted unvented safety components, Kiwa approval and an ERP rating of C, it provides a comprehensive direct unvented hot water solution.
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🆓 Free Local Delivery (Orders £100 & above)
We offer FREE delivery on orders £100 or more
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