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Megaflo Eco Slimline 125L Indirect Unvented Hot Water Cylinder

SKU 7034088
Original price £1,203.35 - Original price £1,203.35
Original price
£1,203.35
£1,203.35 - £1,203.35
Current price £1,203.35

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Description

The Heatrae Sadia Megaflo Eco Slimline Indirect 125L Unvented Hot Water Cylinder (product code 7034088) is designed for homes where space is limited and a standard-width cylinder may not fit. Its 491mm-diameter slimline body stores 125 litres of hot water for use with a compatible boiler-heated system. An internal floating baffle provides internal expansion, while a 3kW immersion heater offers backup heating.

The supplied specifications list a height of 1440mm, a standing heat loss of 1.38kWh/24h and a maximum flow rate of up to 70 litres per minute at 3 bar. The cylinder is supplied with 50mm of CFC-free polyurethane foam insulation. Check the product dimensions, access route, connections and system requirements with a suitably qualified installer before purchase.

125L Capacity Slimline 491mm Diameter Indirect Unvented 3kW Backup Immersion

At a Glance

Cylinder Type
Indirect Unvented
Megaflo Eco Slimline range
Capacity
125 litres
Product code: 7034088
Dimensions
1440 × 491mm
Height × diameter
Backup Immersion
3kW
One immersion listed

Key Features

Space-Saving Slimline Design

The 491mm-diameter cylinder is designed for installations where a standard-width hot water cylinder may not fit.

125-Litre Hot Water Capacity

Provides 125 litres of stored hot water for compatible domestic hot water systems.

Indirect Boiler Heating

Designed to heat stored water indirectly using a compatible boiler and heating system.

Backup Immersion Heater

One 3kW immersion heater is specified as a backup heat source. Confirm whether it is supplied fitted or separately.

Internal Expansion Design

An internal floating baffle provides internal expansion, so a separate external expansion vessel is not required for this design, subject to the manufacturer’s installation instructions.

Factory-Fitted Components

The supplied information lists a temperature and pressure valve, 3-bar pressure-reducing valve, tundish, wiring centre and 2-port motorised valve.

Important Installation Guidance: This is an unvented cylinder intended for high-pressure systems. Have a suitably qualified installer check the available space, access route, connections, mains pressure and system compatibility. Installation and commissioning should follow the manufacturer’s instructions and applicable regulations.

Key Specifications

Product Heatrae Sadia Megaflo Eco Slimline Indirect Unvented Hot Water Cylinder
Product Code 7034088
Cylinder Type Indirect unvented
Nominal Capacity 125 litres
Height 1440mm
Diameter 491mm
Weight, Empty / Full 36kg / 162kg
Standing Heat Loss 1.38kWh/24h
Maximum Flow at 3 Bar 70 litres per minute
Heat-Up Time 26 minutes at 15 litres/minute and 80°C primary temperature
Backup Immersion 1 × 3kW at 240V
Operating Pressure 3 bar
Maximum Mains Pressure 16 bar
Insulation 50mm CFC-free polyurethane foam
Expansion Design Internal floating baffle
ERP Rating C
Approval Kiwa approved, as supplied
Country of Manufacture United Kingdom, as supplied

Frequently Asked Questions

What is the capacity of the Megaflo Eco Slimline 125L?

The nominal capacity is 125 litres.

What are the cylinder dimensions?

The supplied specifications list a height of 1440mm and a diameter of 491mm. Allow additional clearance for connections and installation access.

Does this cylinder need an external expansion vessel?

The design uses an internal floating baffle for expansion, so a separate external expansion vessel is not required for this cylinder design. Installation must follow the manufacturer’s instructions.

Shipping Information

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
for selected local areas.

Eligible Postcodes Include:

  • RG*
  • SL*
  • OX10*, OX11*, OX49*
  • HP1*, HP3*, HP8*, HP9*, HP10*, HP11*, HP12*, HP13*, HP14*
  • WD*, HA*, UB*, TW*, KT*
  • W1* – W9*
  • NW*, SW*

Delivery Time: 2–4 working days

Shipping Cost: £0.00

📦 Standard Shipping (Weight-Based Rates)

For orders that do not qualify for free delivery, standard
shipping rates apply based on total cart weight.

  • For cart weight between 0–2 kg, the shipping cost is £4.50 with a delivery time of 2–4 working days.
  • For cart weight between 2–24 kg, the shipping cost is £9.99 with a delivery time of 2–4 working days.
  • For cart weight between 24 kg and above, the shipping cost is £60 with a delivery time of 2–4 working days.

🧱 Block Salt (Harvey’s) – Unit-Based Shipping

This rate applies only to Harvey’s block salt products.

  • £7.99 is charged for every 3 items.
  • The charge increases by £7.99 for each additional set of 3 items.

Examples:

  • 1–3 items → £7.99
  • 4–6 items → £15.98
  • 7–9 items → £23.97

Delivery Time: 2–4 working days

📏 Large / Long Items (Length-Based Shipping)

For oversized items where the product length is 1.5 metres or more:

Conditions:

  • Product length ≥ 1.5 m
  • Cart weight ≤ 40 kg

Shipping Cost: £18.00 (flat rate)

Delivery Time: 2–4 working days

Collection from Store

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.

Specifications

BrandMegaflo
Part Number7034088
Capacity125 litres
Height1440mm
Diameter491mm
Weight (empty)36kg
Weight (full)162kg
Standing Loss58W
Reheat Time26 mins
ErP Energy ClassC
Power240V
ModesIndirect Heating (Boiler Coil) + Electric Immersion Backup
MountingFloor Standing (Slimline Design)
DimensionsH: 1440mm × W: 491mm × D: 516mm
Warranty30 years inner tank, 2 years product
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