At the moment, Vaping in Pubs is not covered by the legislation that bans users from smoking indoors. Certain venues do have their own code. For more details please visit at https://www.ichorliquid.co.uk/vaping-pubs-uk/

1. The Laws Of Vaping In Pubs UK
Most people in the UK will remember when a walk to the pub and
suddenly, smoking went on. Since the ban on smoking, those days
have passed. However, the adventofe-cigarettes hasnow complicated
matters and resulted in a lot of trouble about whether or not anybody
can vape in the pub. As with a lot of questions of this type, there is no
clear answer. However, it’s best for you to assume that vaping isn't
permitted and to ask the staff if further clarification is required.
At the moment, e-cigsaren't covered by the legislation that bans users
from smoking indoors. Now, this is because smoking needs the
burning of a substance, and nothing burns in an e-cig when the
person is vaping. But, while there are no nationallawspreventinguse,
differentvenues are permitted to apply their rules at their discretion,
and many do so - always to the detriment of vapers.

2. National pub chains Wetherspoons have implemented a ban on
vaping in pubs in the UK. The Wetherspoons site explains that: “We
don't permit the use of vaporisers or e-cigarettes outside of the areas
designated for smoking on our premises. This will include external
areas and hotel rooms.”
The Mitchell and Butlers website show a similar note: “For the
comfort of our guests, Mitchells and Butlers don't allow the use of e-
cigarettes within our premises. Recognising that the fumes are non-
harmfuland vapoursthis is not known by everyone and can result in
confusion for others. So, to prevent this, we ask that guests don't use
e-cigs on our premises.”
Also, vaping seems to be banned at all English Premier League
grounds, though how heartily the enforcement of this ban is a
different question entirely.

3. The enclosed spaceswhich come with any publictransport were often
going to be a tricky area for vapers. Therefore, vapingis banned on all
train systems in the country exceptfor Southeastern and is prohibited
in the London underground too. All airports as well as major United
Kingdom airlines have a full ban on vaping, even though you're
allowed to take the equipment on many planes. Now, Heathrow
terminal4 has a dedicated vaping section for people who are aching to
puff on their favourite vaping liquid.
Enterprise is a leased as well as a tenanted pub company that means
their venues are given to personal operators. It's these operators who
operate every partof the venue, instead ofEnterprise, and ao decisions
like use or non-use of electric cigarettes are left to those people. It
implies that while an Enterprise pub may permitvaping, another may
not.

4. The best thing is to ask any staff at the establishment – and that also
appliesfor any pub which doesnothave any clear rule. Where vaping
in some publicplaces are concerned, it is best to play it safe and have
confirmation before you use your device.
Finally, your place of business is your premises, and you have the
right of withdrawing your permission for some to enter the premises
given it's on non-discriminatory grounds. But, if they refuse to leave
or try to access, they commit a trespass.