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.
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.
Features
Compatability
AccuBoost Unvented 450L is suitable for mains fed systems including combination boilers or unvented cylinders.
Technical Details
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FAQS
View allA mains fed system is one which is fed directly by the mains water such as a combination boiler or an unvented hot water cylinder.
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.
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.
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.
No. To prevent stagnant water and debris build up the accumulator vessel must be installed vertically.
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.
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.
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