Study 1: Rosa’s Soho Restaurant
Ventilation carried out a tasty ventilation project
at modern Thai food restaurant, Rosa’s, in Soho
in the heart of London’s West End.
company supplied and installed an extraction system
over the Chinese and English cookers in the kitchen
in the basement of the restaurant. This included two
stainless steel extraction canopies complete with stainless
steel baffle type filters linked to ductwork.
A Medem gas interlock system was wired to the fresh
air fan and extract fan to ensure that if there was
a fan failure the gas valve would shut off.
The very low ceilings in the kitchen made the installation
challenging and the ductwork had to be designed as small
as possible so as not to protrude too far below the
ceiling and restrict space further. The ductwork was
routed from the basement to ground floor level where
it rose at least four storeys in an external light-well
to terminate at the top of the building. The fresh air
supply had to follow the same route within the restaurant
One of the main considerations for the project was the
noise level that Westminster Council required for the
plant. This was specified at 10dB(A) below the minimum
existing background noise level, so it wasn’t
audible in operation. Coolstream Ventilation achieved
this with an acoustically lined enclosure that had an
access door installed around the extract fan. Silencers
were incorporated within the system.
The location of the plant was very important. There
was very little room in the external light-well to accommodate
equipment and access was gained through another premises.
Scaffolding had to be erected in the narrow light-well
to install the ductwork as it ascended onto the roof.
As part of the project, Coolstream Ventilation also
supplied and installed toilet extract and fresh air
input in the basement at the rear of the restaurant
and serviced the existing air conditioning units on
the ground floor and basement levels.
The company carried out all builders work and electrical
wiring to all systems.