Identifying meter size
Guidance on identifying your existing meter size
When applying for your Domestic Service Alteration we will require you to
identify your current meter size.
The following is a general guide for meter sizes based on a customer’s use:
•
•
•
Standard Property (U6): Most Domestic properties will only require a U6 meter.
Large Property (U16): typically for large properties with specialist equipment such as heated
swimming pools.
Very Large Property (U25): for properties that require extremely large hourly gas usage.
These are very rarely required.
Sizes for meters are usually displayed with a prefix of U or E followed by a digit. This information can
usually be seen on your meter near the dial. The following is an example of the location of the meter
size on the dial.
The meter size can be found
near the dial, in the format: U6
This is a magnified view
of the meter size.
Sometimes, the size of the meter is displayed in the following format:
Q max = 6 M3/H
In this example, the number that appears after “Q max” is the size of the meter.
Therefore, for this example, the size of the meter is “U6.”
If your meter displays a format of Q max = 16 M3/H you should select the U16 option from the
dropdown list.
NOV 2011
1
This is a typical
domestic meter
U6 meter
Look for the Q max
figure of your
meter. Here 6m3/h
is displayed. This
is referred to as a
U6 meter.
Sometimes the meter
size can be found near
the dial and will show
as a U6 / U16 / U25. The
above example shows a
U6 meter.
Various types of gas
meters and their
identifying symbols
are displayed. All
these are U6 meters.
NOV 2011
2