Airtherm is an HVAC specialist with 54 years of combined experience, offering a variety of high-quality flue and chimney systems. Their products, designed for various applications including domestic and commercial heating, adhere to strict regulations and safety guidelines, and come with guarantees up to 10 years. The company emphasizes quality workmanship and customer feedback while maintaining competitive pricing in the market.

2. AN INTRODUCTION TO AIRTHERM
WHO WE ARE
HVAC specialists with a varied product range including -
. Flues & Chimneys Systems
. Natural Ventilation & Lighting Systems
. Kitchen Ventilation Systems
WHY CHOOSE US
54 years combined HVAC Experience
We only use the highest quality products
Experienced installation teams - Nationwide
We demand the highest quality workmanship
Manage projects closely
Strict adherence to regulations & safety guidelines
Strengthen our business by customer feedback
Competitive compared to other boiler/flue companies
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3. FLUE PORTFOLIO
DW TWIN WALL MODULAR CHIMNEY
FEATURES:
• Specially Designed for Condensing Applications
• Thermal Expansion Absorbed in each Element (no need for expansion bellows)
• No Thermal Bridge (insulation continuity throughout the system)
• High Mechanical Resistance to Vertical and Horizontal Forces
• 40mm Overlap
• Diameters available from 80mm to 1000mm
•10 year guarantee
APPLICATIONS:
• Domestic Heating and Hot water systems
• Industrial or Commercial Heating
• Bakery Ovens
•Open Fire Places
• Hot Air Generators
• Ventilation and Smoke Extraction
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4. FLUE PORTFOLIO
DW TWIN WALL MODULAR CHIMNEY
MATERIALS: FUEL:
Inner Wall: Gas, Diesel, Wood, Coal
AISI 316L (1.4404) or AISI 304L (1.4301)
WORKING TEMPERATURE:
Outer Wall: 6000C Under Continuous Fire
AISI 304L (1.4404) or AISI 304L (1.4301)
Aluzinc - only for inside installation OVER PRESSURE:
Copper 200 Pa (with joint)
Painted (RAL range)
Insulation:
Rockwool (30mm to 50mm depending on
the diameter)
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5. FLUE PORTFOLIO
GE TWIN WALL MODULAR CHIMNEY
FOR GENERATORS AND TURBINES
FEATURES:
• HETAS Approved
• Manufactured in accordance with BS ISO 9001:2008 Quality Management Standard
• CE marked to EN 1856-1
• Designed to Work in High Temperatures (upto 600’C) and High Pressures (upto 5000 Pa)
• Insulated Double-Walled Modular Metallic Chimney
•Insulation thickness (kg/m3) according to appliance temp & outer touch requirements
• Individual Expansion Absorption at Joints (no need for expansion bellows)
• Gas & water tightness
• High velocities ranging from 25 m/s to 40 m/s
• Protection Panels to Prevent Damage from Abrupt Motor Stops or Explosions
• Primary Silencer to Reduce Noise
• 10 year guarantee
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6. FLUE PORTFOLIO
GE TWIN WALL MODULAR CHIMNEY
FOR GENERATORS AND TURBINES
MATERIALS: Insulation:
Inner Wall: 100 kg/m3 density Rockwool
AISI 304 (1.4301) - for Natural Gas, LPG’s and Diesel Oil
AISI 316 (1.4404) - for Natural Gas, LPG’s, Diesel Oil and Biodiesel Joint Insulation:
Biosoluble ceramic fibre with density 220 kg/m3
Outer Wall: and 96 kg/m³
AISI 430 (1.4016) - Indoor installation in clean environment
AISI 304 (1.4301) - Indoor installation in uncontaminated Sealing Ring:
environment Stainless steel AISI 304 (1.4301)
- Outdoor installation in area away from the coast
AISI 316 (1.4404) - Outdoor installation in costal or industrial area External finish
- Indoor or aggressive environment installation Mirror finish (BA). Optional power coated according
RAL / BS range
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7. FLUE PORTFOLIO
FK SINGLE WALL MODULAR CHIMNEY
FEATURES:
• HETAS Approved
• Manufactured in accordance with ISO 9001:2008
• CE marked to EN 1856-2
• Suitable for chimney liners and low temperature condensing flues
• Cost-effective solution.
• P1 Tightness (max 200 PA) with no joints
• Quick and easy assembly
• Diameters available from 80mm to 1000mm
•10 year guarantee
APPLICATIONS:
• For gas, oil, and/or solid fuels
• With Negative (N) or Positive (P) pressure
• In Dry (D) or Condensing (W) mode
• Ideal for re-lining: no need for replacement of deteriorated old joints
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8. FLUE PORTFOLIO
FK SINGLE WALL MODULAR CHIMNEY
MATERIALS:
AISI 316L (1.4404) or AISI 304L (1.4301)
THICKNESS:
From (diameter) 80mm to 300mm : 0.4mm
From (diameter) 350mm to 600mm : 0.5mm
From (diameter) 650mm : 0.6mm
FUEL:
Gas, Oil
Solid Fuels
WORKING TEMPERATURE:
250 °c: EN 1856-1: CHIMNEYS
600 °c: EN 1856-2: LINERS
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9. FLUE PORTFOLIO
DINAGAS SHARED SYSTEM CHIMNEY FOR MULTIPLE BOILERS
FEATURES:
• Manufactured in accordance with ISO 9001:2008
• CE marked to EN 1856-1
• Suitable for multi chimney low temperature condensing flues
• Working temperature 1600C (max)
• Quick and easy assembly
• Connecting flue available from 60/100mm & 80/125mm
• Chimney flue available from 150mm dia to 350mm dia
• Chimney sizing calculated according to BS EN 13384-2
APPLICATIONS:
• For natural gas appliances and fulfils criteria of BS 5440-1:2008
• With Negative (N) pressure
• Total heat output up to 560kw max per common chimney with a 350mm i/dia (675o/d) flue
• Ideal for domestic and light commercial wall hung boilers
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10. CHIMNEY & FLUE REGULATIONS
BRITISH STANDARDS
The products we use are approved and CE marked to EN 1856-1 and manufactured under a quality
assurance scheme (certificate number issued upon request), administered by British Standards in
accordance with BS EN 9001: 2008.
Our manufacture and installation is in accordance with local and national building regulations
together with:
• BS: 5440 -1:2008 Domestic natural gas appliances international codes
• BS EN 15287: 2007 for masonry chimneys and flue pipes
• BS 6644:2011 Specification for the installation and maintenance of gas-fired hot water boilers
of rated inputs between 70 kW (net) and 1.8 MW (net) (2nd and 3rd family gases)
• IGE/UP/10 Installation of flued gas appliances in industrial and commercial premises.
• Clean Air Act Memorandum
• Chimneys to BS 4076 and corresponding
• Technical Guidance Note (Dispersion) D1, Guidelines on Discharge Stack Heights for Polluting
Emissions
• 2010 Edition of the Approved Document J
• Provisions of DEFRA - Local Air Quality Management (LAQM)
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11. DESIGN & INSTALLATION
SITE SURVEY SIZE CALCULATIONS AIRTHERM QUOTATIONS INSTALLATION & STANDARDS
• Liaise with client • FlueCalc specialist software available • Quotations provided and adhered to • Experienced installation teams
• CAD design proposals • Adhere to current regulations • Return tender on time • Strict safety guidelines
• Information required to carry out a • FlueCalc calculates chimney size based • Correct product selection • Meet all current industry standards. Each
flue/chimney design – Appliance(s) on plant application , flue gas volume, • System allowances employee holds CSCS cards, IPATH, PASMA,
make & model, horizontal and vertical overpressure available, loss/friction for • Competitive by selecting the correct Height Awareness, & Asbestos Awareness
runs, adjacent building(s), windows, bends tees, cowls & temperature release products & allowing sufficient labour • Accreditations held – Safecontractor &
intakes, AHU, position of termination from the boiler • Exclusions & Inclusions Constructionline. Our CHAS application is
• Terms & Conditions awaiting approval.
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12. FLUECALC SOFTWARE
Our FlueCalc software accurately calculates chimney size based on a number of factors we take into
consideration. These include (but are not exclusive of) plant application, flue gas volume, overpressure
available, loss/friction for bends and tees, cowls and temperature release from the boiler. With this
information we can determine the best chimney size for your application.
CASCADE CALC GENERATOR CALC
BOILER CALC MULTIPLE CALC
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13. CASE STUDIES
DINAK TWIN WALL FLUE AIRTHERM MASTERFLUE NOVA TWIN WALL FLUE DINAK DW SYSTEM
CAMDEN ACADEMY ST BERNARDS RC SCHOOL ST GREGORYS RC SCHOOL SWAN LANE FORST SCHOOL
• 500mm diameter stainless steel, fully • Modumax HE Variheat PV105 system • Serves two high efficiency, wall hung • Cost-efficient solution required and our
welded gas and water tight Dinak DWhp Mikrofil Ethos 90kw condensing boilers tender successfully competed with the
flue system • 200 Pa working pressure (product will original Hamworthy budget
operate 1000pa max) • 4 hour fire rating BS476 part 20
• Serves three high efficiency Clyde Unical • 2.5m horizontal and 3m vertical run
Modulex condensing boilers (2.2MW • Dry/Wet operation and Positive/ • Suitable for solid fuel & fully condensing
output) Negative pressure systems • Consulted with Worcestershire Council
and the client, EMS
• 12m horizontal and 26m vertical run • Gas/Oil/Coal/Wood fuel • Twin wall stainless steel flue system
with drains for condense evacuation • Education sector
• Education Sector
• Worked closely with BAM Construction
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14. CASE STUDIES
DINAK DW FLUE PRODUCT AIRTHERM MASTERFLUE AIRTHERM MASTERFLUE DINAK DWHP RANGE
OAKHAM PRIMARY SCHOOL ADDENSBROOKE HOUSE LONDON OFFICES WORTHY DOWN
• Design, supply and installation of a • The flue system serves four new high • 450mm diameter flues serving two Hoval • 3nr 350mm diameter flues attached to a free-
complete twin wall stainless steel flue efficiency condensing boilers and SR boilers standing mast
system serving each MHS Adinox ADI LT comprises of a twin wall stainless steel
• Stainless Steel Inner & Outer Casing • Condensing application
200 modulating boiler inner & outer casing with 25mm insulation
• Four Hour Fire Rating • Stainless Steel Inner & Outer Casing
• Working on a tight program during the • The flue system has a 3.5m horizontal run
school summer holidays, the flue system and a 2.5m vertical, incorporating the • 30mm Insulation • Four Hour Fire Rating
was installed immediately after the new necessary drains to allow any unwanted
high efficiency boilers. The old cast iron condense to evacuate the system • Each comprises of 27m stack and a 10m • Each system comprises of a 9m stack & and a
boilers were removed by our contractor horizontal run 9m horizontal run
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15. OFFICE: 0844 809 2509
MOBILE: 07715 360958
FAX: 01562 887312
EMAIL: sales@airtherm.co.uk
WEBSITE: www.airtherm.co.uk