Flues & Chimneys Our range of flue, chimney and exhaust systems have been specifically developed to provide an optimum solution for a varying range of commercial and industrial applications. Every solution is designed to meet the highest standards of manufacture and performance and has undergone comprehensive testing to conform to the most up to date legislation requirements and real world demands before installation. Whatever your project requirements, we guarantee a solution of the highest quality, that has been rigorously tested and offers outstanding performance in its field. There are significant advantages in using dilution fans instead of conventional flue stacks as they offer the opportunity for the flexible siting of boiler and water heaters within the boiler room, and the elimination of unsightly external, or expensive internal flues. Based on efficient and quiet double inlet centrifugal fans they are capable of overcoming the system resistance of flue duct runs, and, with the built-in self proving safety switches safety is not compromised in the event of fan failure or flue blockage.

1. Airtherm offer fan dilution systems to
suit many appliances, from modern high
efficiency condensing to gas blown and
atmospheric boilers.
P: 0844 809 2509 F: 01384 375218 E: sales@airtherm.co.uk
FLUE DILUTION
HIGH PERFORMANCE SYSTEMS FOR A RANGE OF APPLICATIONS
Flue Dilution Systems

2. Commercial Industrial
Educational
Retail
Health Care
Leisure
SECTORS
We serve
We can provide
technical solutions for
the specialist areas of
high temperature
exhaust systems, fan
assisted, flue dilution
and atmospheric
applications.
Installation
Our installation teams
are made up of
experienced personnel
that are fully trained
and aware of all the
necessary statutory
requirements and
standards for every
project they undertake.
Design
There are many design
considerations that
must be achieved, for
instance, the correct
sizing of the fan unit,
dilution header, inlet
and discharge plenum
boxes, the location to
adjacent buildings,
openable windows, fresh
air vent pipes and final
discharge height. These
can be found from the
Clean Air Act
memorandum,
IGEUP/10 or BS6644.
We offer a design, supply
and installation service
for flue dilution systems,
and can offer a tailored-
made package to site
conditions and customer
requirements

5. Airtherm Ventilation Solutions

12. Advantages Using Airflow
• ErP 2013/2015 compliant
• Environmentally friendly
answer to costly and
unsightly flues
• Dilutes carbon combustion
emissions from commercial
gas boilers
• Less than 1% content enables
safe discharge at low levels
• Allows flexible siting of gas
boilers rated 80 to 650kW
input
• Extra safe - pressure switch
shuts off gas supply on
system failure
• EuP IE2 compliant
There are significant
advantages in using dilution
fans instead of conventional
flue stacks as they offer the
opportunity for the flexible
siting of boiler and water
heaters within the boiler room,
and the elimination of
unsightly external, or
expensive internal flues. Based
on efficient and quiet double
inlet centrifugal fans they are
capable of overcoming the
system resistance of flue duct
runs, and, with the built-in self
proving safety switches safety
is not compromised in the event
of fan failure or flue blockage.

13. HIGH PERFORMANCE FLUE DILUTION SOLUTIONS SUITABLE FOR A RANGE
OF COMMERCIAL, INDUSTRIAL AND DOMESTIC APPLICATIONS FROM
AIRTHERM ENGINEERING LIMITED.