Skip to content

AccuBoost Unvented 450L

450L Accumulator Vessel

The AccuBoost Unvented 450L has a pressurised vessel water storage capacity of 226.5L. The vessel will supplement the water supplied by the mains providing an additional 24L/min into the system, boosting the water flow to the outlets in the home.

Showers

Taps

Combination Boiler

Unvented Cylinder

Where to buy

Features

A drench shower head running water

Boost water flow

Increase the water flow throughout the home via a combi boiler or unvented cylinder.

Accuboost zoomed in image of product logo

Lightweight

Constructed from a lightweight composite material.

Salamander Pumps 3 Year Warranty

Warranty

3 years warranty.

Compatability

A person about to fill up a black kettle using the kitchen tap

AccuBoost Unvented 450L is suitable for mains fed systems including combination boilers or unvented cylinders.

Toilet

Wash basin

Washing machine

Dishwasher

Instant electric shower

Thermostatic mixer shower

Drench shower head

Multi-function shower head

Body jets

Technical Details

    AccuBoost 450L
Part Number
ACC-450-TNK
General
Warranty 3 Years
Noise Rating
Noise when filling 28.1 dBA
Noise when emptying 37.4 dBA
Specification
Maximum Operating Pressure 8.6 Bar
Vessel Size 453 Litres
Maximum Water Vessel Water Storage Capacity 226.5 Litres
Flow Rate (not including natural mains flow) 24 L/min
Connection Type 3/4" male BSP
Dimensions
Height 1863mm
Width 621mm
Depth 621mm
Weights
Empty Weight 47kg
Filled Weight 274kg
Maximum Weight 500kg
Performance
Please note Performance values may be higher if mains natural flow is above 12l/m

FAQS

View all
What is a mains fed system?

A mains fed system is one which is fed directly by the mains water such as a combination boiler or an unvented hot water cylinder.

How do I measure my flow rate?

Measuring the water flow is an important step in choosing the right pump. Water flow rate is measured in litres per minute (L/min).

To measure the water flow rate, you will need a measuring jug and a timer.

  1. Hold the measuring jug under the outlet which will be boosted.
  2. Turn the outlet onto fully hot or cold (depending on which is to be boosted).
  3. Measure the water in the jug after 10 seconds, in litres.
  4. Multiply the amount of water by 6 to measure the number of litres per minute.

For example, if you gathered 600ml in 10 seconds, to calculate the flow rate in litres per minute – 600 x 6 = 3600ML per minute = 3.6L/min.

You can also use our interactive flow calculator to work out the flow rate of a single outlet.

Learn how to measure your water flow from the video.

Can I install an AccuBoost accumulator vessel in a system with an incoming lead main?

An AccuBoost accumulator vessel can be installed in a system with an incoming mains pipe in any material.

If the system has a high pressure (over 2.0 bar) but has a restricted main, then AccuBoost accumulator may still offer a solution – contact us for more information.

A sign of a restricted mains supply pipe would be a high standing pressure and low flow rate.

Can an AccuBoost accumulator be installed horizontally?

No. To prevent stagnant water and debris build up the accumulator vessel must be installed vertically.

How many litres of water is stored in each size AccuBoost accumulator vessel?

An AccuBoost accumulator stores both air and water within the vessel. The accumulator’s capacity is shared 50% air and 50% water, therefore a 450L accumulator will store approximately 226.5 litres of water.

The volume of water stored in the accumulator will vary depending on the pre-charge pressure held in the bladder of the vessel.

What water flow rate can I expect AccuBoost accumulators to deliver from an outlet?

It’s impossible to say what flow rate will be delivered from the outlet as aspects of the system, such as the size of pipe work and how restrictive the outlet is, will impact the flow rate delivered from the outlet.

See ‘What are the flow rates from each accumulator in an open-ended test?’ for the flow rates delivered directly from the accumulator, excluding system factors.

Similar Products

AccuBoost Combi 60L

60L Accumulator Vessel

AccuBoost Unpumped 450L

Compatability

Showers

Taps

Combination Boiler

Unvented Cylinder

View Product Details

AccuBoost Combi 120L

120L Accumulator Vessel

AccuBoost 120L Unpumped accumulator Salamander Pumps

Compatability

Showers

Taps

Combination Boiler

Unvented Cylinder

View Product Details

AccuBoost Combi 180L

180L Accumulator Vessel

AccuBoost 450L Unpumped Accumulator

Compatability

Showers

Taps

Combination Boiler

Unvented Cylinder

View Product Details

AccuBoost Unvented 330L

330L Accumulator Vessel

AccuBoost 330L Accumulator

Compatability

Showers

Taps

Combination Boiler

Unvented Cylinder

View Product Details

Chat Offline: Leave A Message Speech bubbles icon