The Megaflo Eco Indirect 145L is a boiler-heated unvented hot water cylinder designed for 2–3 bedroom homes. With a 145-litre nominal capacity and a maximum flow rate of 76 litres per minute at 3 bar, it provides a powerful stored hot water solution without requiring a shower pump or cold water storage tank.
Heated via a system or heat-only boiler, the cylinder features a high-grade duplex stainless steel inner vessel backed by a 30-year tank warranty and a 2-year product guarantee. A 24-minute boiler coil heat-up time, 60mm CFC-free polyurethane foam insulation and an internal floating baffle provide a practical combination of hot water performance and thermal efficiency.
145L Capacity
Indirect Unvented
76L/min at 3 Bar
30-Year Tank Warranty
Made in the UK
Key Performance Highlights
145L
Nominal Capacity
76L/min
Max Flow at 3 Bar
24 min
Boiler Coil Heat-Up
B
ERP Energy Rating
Applications & Suitability
The Megaflo Eco Indirect 145L is designed for homes requiring reliable stored hot water with strong mains-pressure performance.
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2–3 bedroom homes requiring a practical 145-litre hot water capacity.
- Properties requiring high-flow showers without a shower pump.
- Homes using a system or heat-only boiler for primary cylinder heating.
- Installations where a cold water storage tank is not required.
- Domestic hot water systems requiring a compact and efficient unvented cylinder solution.
Key Specifications
| Product |
Megaflo Eco Indirect 145L |
| Nominal Capacity |
145 litres |
| Height |
1229 mm |
| Width × Depth |
579 × 600 mm |
| Weight Empty |
35 kg |
| Weight Full |
204 kg |
| Standing Heat Loss |
1.18 kWh/24h (49 W) |
| Max Flow at 3 Bar |
76 l/min |
| Coil Heat-Up (15 l/min, 80°C Primary) |
24 min |
| Recovery 70% Draw-Off |
17 min |
| Backup Immersion |
1 × 3kW @ 240V |
| Operating Pressure |
3 bar (0.3 MPa) |
| Max Mains Pressure |
16 bar |
| Connections |
22mm compression / ¾" BSP male |
| ERP Energy Class |
B |
| Product Code |
95050465 |
High-Flow Hot Water Performance
The Megaflo Eco Indirect 145L is designed to deliver strong mains-pressure hot water performance, with a stated maximum flow of 76 litres per minute at 3 bar. This enables powerful showers without the need for a shower pump or cold water storage tank.
76L/min Flow
Provides a stated maximum flow rate of 76 litres per minute at 3 bar.
24-Minute Heat-Up
The boiler coil provides a stated heat-up time of 24 minutes under the specified test conditions.
17-Minute Recovery
The stated recovery time for a 70% draw-off is 17 minutes.
Construction & Thermal Insulation
The Megaflo Eco Indirect 145L features a duplex stainless steel inner vessel and 60mm CFC-free polyurethane foam insulation. The insulation helps limit standing heat loss, which is specified at 1.18 kWh/24h (49 W).
Duplex Stainless Steel
High-grade duplex stainless steel inner vessel construction with a stated 30-year tank warranty.
60mm Insulation
60mm CFC-free polyurethane foam insulation helps reduce standing heat loss.
Internal Floating Baffle
The internal floating baffle means no external expansion vessel is required.
Boiler Heating & Backup Immersion
The cylinder is heated via a system or heat-only boiler and includes one 3kW Superloy 825 backup immersion heater. The immersion is specified as 1 × 3kW at 240V and provides an additional heating option.
Factory-Fitted Safety & System Components
The Megaflo Eco Indirect 145L is supplied with a range of factory-fitted components designed as part of the cylinder system.
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T&P valve.
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3 bar pressure relief valve (PRV).
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Tundish.
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Wiring centre.
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2-port motorised valve.
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Internal floating baffle with no external expansion vessel required.
Energy Rating, Approval & Warranty
The cylinder has an ERP energy rating of B and is stated as Kiwa approved and made in the UK. The duplex stainless steel tank is covered by a 30-year tank warranty, while the product has a 2-year product guarantee.
ERP Rating B
The stated ERP energy class is B.
Kiwa Approved
The product specification identifies the cylinder as Kiwa approved.
30-Year Tank Warranty
The duplex stainless steel inner vessel has a stated 30-year tank warranty.
Installation & Handling
The Megaflo Eco Indirect 145L has a stated height of 1229 mm and width × depth of 579 × 600 mm. Its empty weight is 35 kg and full weight is 204 kg. These dimensions and weights should be considered when planning access, positioning and installation. Specific installation clearances were not provided and should be confirmed before installation.
Ideal For
- 2–3 bedroom homes.
- Properties requiring high-flow showers without a pump.
- Homes using system or heat-only boilers.
- Installations where a cold water storage tank is not required.
- Domestic hot water systems requiring 145 litres of stored capacity.
- Projects where long-term tank warranty coverage is important.
Frequently Asked Questions
What is the capacity of the Megaflo Eco Indirect 145L?
The cylinder has a 145-litre nominal capacity.
What type of boiler can heat the cylinder?
It is designed to be heated via a system or heat-only boiler.
What flow rate does the Megaflo Eco Indirect 145L provide?
The stated maximum flow is 76 litres per minute at 3 bar.
Does the cylinder require a shower pump?
The supplied product information states that it provides powerful showers without a pump.
Does it require an external expansion vessel?
No. The product features an internal floating baffle, meaning no external expansion vessel is required.
What is the heat-up time?
The stated boiler coil heat-up time is 24 minutes at 15 l/min and 80°C primary conditions. Recovery for a 70% draw-off is stated as 17 minutes.
What is the ERP energy rating?
The Megaflo Eco Indirect 145L has an ERP energy class B rating.
What warranty and guarantee are provided?
The product has a 30-year tank warranty and a 2-year product guarantee, as specified.
Megaflo Eco Indirect 145L at a Glance
The Megaflo Eco Indirect 145L is a boiler-heated unvented hot water cylinder designed for 2–3 bedroom homes. With 145 litres of capacity, 76 l/min flow at 3 bar, a 24-minute boiler coil heat-up time, 60mm CFC-free insulation, ERP class B and a duplex stainless steel inner vessel, it provides a high-flow hot water solution without requiring a shower pump or cold water storage tank.
