Case Study - Marlow Care Home, Bucks

Airtherm Engineering recently completed the installation of a twin wall, fire rated, flue system at the new £20 Million Signature Care Home for Marlow. Signature Senior Lifestyle are currently finalising the construction of the care home located on Little Marlow Road in Marlow, Buckinghamshire.

The new heating system comprises of a new gas fired boiler and two new Broag water heaters, all located in the basement boiler house. The twin wall fire rated flue systems rise through the three storey building approx 14m, exiting through a flat roof and are then offset to the taller structure, terminating at 1m above the structure in compliance with the Clean Air Act Memorandum. 

 

Project Details:
Consultant: ABCE UK
Client: LLJ Limited
Sector: Healthcare
Products: DWhp
Equipment: Broag boiler & A.O Smith water heaters
Application: High Efficiency Condensing

Boiler: Broag
Model: 610-8 
Water Heater: A.O Smith 
Model: BFC60 
Application: Chimney / Flue system 
Operating mode: Wet 
Pressure: positive pressure 
Working pressure: 150 Pa (product will operate 300pa max) 
Inner wall: 316L1.4404/1.457 thickness 0,6 mm 
Outer wall: 304/ 1.4301 thickness 0,5 
Insulation: 30mm thick Rockwool insulation 
Sealant: Tri-lip 'o' type silicone ring 
Fuel type: Gas

For more information: www.airtherm.co.uk

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Case Study - Lambeth Hospital, London

Airtherm worked closely with the contractor AC Preou Limited with the supply and installation of two boiler house refurbishments of Reay House and Oak House at Lambeth Hospital, London.

The existing plant was removed by the contractor and replaced with a more modern, efficient system supplied by Ideal commercial. Airtherm installed both flue systems simultaneously and completed the works within two working days to meet with the client's schedule of works.

Project Details:
Client: Lambeth Hospital
Contractor: AC Preou Limited
Sector: Primary Health Care
Products: Masterflue
Equipment: Ideal Boilers
Application: Atmospheric

Boilers: Ideal
Model: Concord
Application: Chimney / Flue system
Operating mode: Dry
Pressure: Negative pressure
Working pressure: 50 Pa (product will operate 300pa max)
Inner wall: 316L1.4404/1.457 thickness 0,6 mm
Outer wall: 304/ 1.4301 thickness 0,5
Insulation: 25mm thick Rockwool insulation
Sealant: Tri-lip 'o' type silicone ring
Fuel type: Gas
Fan Assisted: Bifurcated

Other Application our MF Flues can be used:

• Condensing boilers
• Atmospheric gas-fired boilers
• Gas blown boilers
• Industrial ovens, large-scale establishments
• Wood-fired stoves

For more information: www.airtherm.co.uk

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Case Study - Trinity Catholic College, Leamington Spa

Airtherm have recently designed, supplied and installed a complete twin wall stainless steel flue system serving each Hamworthy Fleet 350 condensing boiler at Trinity Catholic School, Leamington Spa, Warwickshire.

Trinity Catholic School is a mixed Catholic secondary school in Leamington Spa, Warwickshire, England. The school had Technology College status awarded in 2000 and Arts College status awarded in 2004 and had been awarded Artsmark Gold award.

The existing Hamworthy Purewell 120 boilers were removed by the contractor during the School summer shut-down, working on a tight program the new boilers were installed followed by the installation of our flue system.

Airtherm Engineering Ltd only uses branded products which are synonymous with the highest quality - and it is this reputation that enables specifiers and contractors to use our versatile product range with total confidence.

Project Details:
Consultant: Spicer
Fuel type: Gas
Client: Inderflame Limited
Sector: Education
Products: DW Flue System
Equipment: Hamworthy Fleet
Application: High Efficiency Condensing

Boilers: Hamworthy
Model: Fleet 350
Application: Chimney / Flue system
Operating mode: Wet
Pressure: Negative / positive pressure
Working pressure: 150 Pa (product will operate 300pa max)
Inner wall: 316L1.4404/1.457 thickness 0,6 mm
Outer wall: 304/ 1.4301 thickness 0,5
Insulation: 30mm thick Rockwool insulation
Sealant: Tri-lip 'o' type silicone ring


Other Application DW Flues can be used:

• Condensing boilers
• Atmospheric gas-fired boilers
• Gas blown boilers
• Industrial ovens, large-scale establishments
• Wood-fired stoves

For More information: www.airtherm.co.uk

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Case Study - Windrush Primary School, Woolwich

This project involved the removal of the existing twin wall header system and the installation of a new twin wall four hour fire rated system to serve two MHS Ultragas condensing boilers.

Airtherm had to undertake a CCTV survey to establish to condition of the existing chimney and to ensure the new liner would pass down the stack without any obstruction.

The existing 24m high brick built chimney is lined throughout with our single wall fully welded product suitable for the application. Our experience team of fitting engineers used a chain block to lower the sections down the stack until reaching the base, completed using a top stub termination cowl and flashing plate.

Project Details:   
Consultant: Billingford Limited
Client: CBM Serv Limited
Sector: Education
Products: DW & ME
Equipment: MHS Ultragas R605
Application: High Efficiency Condensing

Boilers: MHS
Model: R605
Application: Chimney / Flue system
Operating mode: Wet
Pressure: Positive pressure
Working pressure: 150 Pa (product will operate 300pa max)
Inner wall: 316L1.4404/1.457 thickness 0,6 mm
Outer wall: 304/ 1.4301 thickness 0,5
Insulation: 30mm thick Rockwool insulation
Sealant: Tri-lip 'o' type silicone ring
Fuel type: Gas
Chimney: Single wall fully welded stainless
 
Other Applications suitable for our DW and ME Flues:

• Condensing boilers
• Atmospheric gas-fired boilers
• Gas blown boilers
• Industrial ovens, large-scale establishments
• Wood-fired stoves

For More information: www.airtherm.co.uk

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Case Study - Blyth Sports Centre, Northumberland

Area Sales Engineer Jim Keady initially liaised with both the consultant and the contractor at the early design stage to establish the full requirements for this project.

Airtherm then attended site to complete a survey and based upon our findings a full specification and design proposal was issued to the consultant for consideration. Airtherm were specified by Screen & Partners to carry out the works in conjunction with the nominated contractor Kirkland (Blyth) Limited.

The recent completion of the two twin wall flue systems ran smoothly from start to finish with the client commending our installers: “We would definitely be using Airtherm again in the near future”.

Project Details:
Consultant: Screen & Foster Partners
Contractor: Kirkland (Blyth) Limited
Sector: Leisure
Products: Twin Wall Flue
Equipment: Hoval Ultragas 650D
Application: Condensing

Boilers: Hoval
Model: Ultragas 650D
Application: Chimney / Flue system
Operating mode: Wet
Pressure: Positive pressure
Working pressure: 130 Pa (product will operate 300pa max)
Inner wall: 316L1.4404/1.457 thickness 0,6 mm
Outer wall: 304/ 1.4301 thickness 0,5
Insulation: 30mm thick Rockwool insulation
Sealant: Tri-lip 'o' type silicone ring
Fuel type: Gas
 
Other Application suited to our DW Flue solutions:

• Condensing boilers
• Atmospheric gas-fired boilers
• Gas blown boilers
• Industrial ovens, large-scale establishments
• Wood-fired stoves 

For more information: www.airtherm.co.uk

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New Partnership with Clyde Energy Soutions...

Airtherm Engineering are proud to announce the formation of a new and exciting partnership with Clyde Energy Solutions. 

The combination of Airtherm's high quality products and services at affordable prices and Clyde's 90+ years experience in supplying and servicing commercial and industrial heating systems will benefit both of our mutual customers.

“This was not a hard decision for us, a well-known brand such as Clyde, with a long standing reputation in the industry... Airtherm had no hesitation to enter into a partnership to strengthen our position in the marketplace,” commented Andrew Brown, Airtherm's Managing Director.

“Clyde has a reputation for innovation and a consistently reliable service, supplying boilers and water heaters with a variety of Renewable Energy Solutions that meet customer expectation's. Our role at Airtherm will be to provide technical support, comprehensive proposals and cost-effective quotations for chimney and flue solutions, to our client’s throughout the UK.”

“Airtherm Engineering Ltd only uses branded flue and chimney products which are synonymous with the highest quality and it is this assured reputation that attracted Clyde to use our versatile product range on their boiler and water heaters with total confidence.”

For more information: www.airtherm.co.uk

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Case Study - Manressa Street (off Kings Road), Chelsea

Airtherm Engineering's reputation for providing a quick response to clients needs was highlighted by a recent flue installation at student accommodation in Manressa Street (off Kings Road), Chelsea, London.

The client contacted our office to request an engineer to attend site, survey and provide a price the same day. After our initial survey we offered our cost proposal for consideration, after which an order was issued but only on the provision that we could install both flues within 48 hours due to exceptional time constraints.
 
The product required was in stock and the installation was completed within the 48 hour deadline, much to the delight of our client.

Consultant: Shaylor
Client: MVS Ltd
Sector: Education
Products: MasterFlue System
Equipment: Andrews Water Heater
Application: Atmospheric

Water Heater: Andrews Water Heaters
Model: Ecoflo EC380/1900
Application: Chimney / Flue system
Operating mode: Wet
Pressure: Positive
Working pressure: 200 Pa (product will operate 1000pa max)
Inner wall: 316L1.4404/1.457 thickness Ø250 0,4 mm
Outer wall: AISI 304/ 1.4301 thickness 0,5mm
Insulation: None
Sealant : Tri-lip 'o' type silicone ring
Fuel type: Gas

For more information: www.airtherm.co.uk

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Case Study - Crackley Hall School, Kenilworth

Airtherm Engineering Limited worked with Trendgrey Construction Limited to complete the installation of a twin wall stainless steel, four hour fire rated flue installation at Crackley Hall School, Kenilworth. We also installed our Solatube Day Lighting system in several classrooms and corridors.

The new extensions at Crackley Hall School will provide new specialist classrooms, a new hall and music centre. As Crackley Hall is a historic building and is set within a residential context, we worked closely with our client and the local planning authority to develop an appropriate solution for the termination of the products of combustion.

Consultant: Ridge & Partners
 
Client: Trendgrey Ltd
 
Sector: Education
 
Products: MasterFlue System / Solatube Daylight Systems
 
Equipment: Ideal Harrier / Solatube 160DS
 
Application: Blown Gas / Flat Roof

Flue solution -
Water Heater: Ideal Cast Iron Boiler
Model: GT Harrier 5
Application: Chimney / Flue system
Operating mode: Dry
Pressure: Negative
Working pressure: 200 Pa (product will operate 1000pa max)
Inner wall: 316L1.4404/1.457 thickness Ø250 0,4 mm
Outer wall: AISI 304/ 1.4301 thickness 0,5mm
Insulation: 25mm thick
Sealant : Tri-lip 'o' type silicone ring
Fuel type: Gas

Lighting solution - 
Product Type: Solatube
Model: Solatube 160DS
Light Coverage: 1032sq m (each)
Number of Solatubes: 5off systems
Location / Areas: Classroom & Corridor
Roof Application: Flat
Roof Type: Sarnafil

Day Lighting systems actively capture daylight from the rooftop and project through a highly reflective tubing to where it’s needed. Solatube light tube system uses the most advanced technologies to ensure that the efficiency and performance of their systems is unrivalled.
 
Extension tubes are available in lengths of 610mm (straight) or 380mm long incorporating a 0-30° adjustable angle along with the new 0-90° angle unit. All reflective tubes – including adjustable tubes – are manufactured from 99.7% reflective Spectralight Infinity material, allowing tube lengths of up to 15 metres for the SolaMaster 330 DS.
 
OPTIVIEW® DIFFUSERS
The technologically advanced OptiView® diffuser uses a multiple Fresnel lens system with a stunning architectural look to deliver crystal clear daylight.

For more information: www.airtherm.co.uk

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Case Study - All Saints Primary School, Maidenhead

During September 2012, Airtherm Engineering Limited completed a flue installation at All Saints Primary School, Maidenhead, ready for the return of pupils from the summer shut-down.

The Masterflue system installed incorporated a draft stabiliser, as recommended within the manufactures operating and maintenance literature for balancing purposes.

Due to the close proximity of a kitchen ventilation intake (AHU) - approx. 5m distance - the flue system couldn't simply terminate above the flat roof as standard. Instead, our solution was to incorporate an offset towards the taller structure with the twin wall flue system fixed and secured to the existing brick stack.

Consultant: Maidenhead Council

Client: Perfect Pipework Ltd

Sector: Education

Products: MasterFlue System

Equipment: A.O. Smith COF315

Application: Atmospheric

Water Heater: AO Smith
Model: COF315
Application: Chimney / Flue system
Operating mode: Dry
Pressure: Negative
Working pressure: 200 Pa (product will operate 1000pa max)
Inner wall: 316L1.4404/1.457 thickness Ø250 0,4 mm
Outer wall: AISI 304/ 1.4301 thickness 0,5mm
Insulation: 25mm thick Rockwool insulation
Sealant : Tri-lip 'o' type silicone ring
Fuel type: Oil

Other Application METALOTERM MasterFlue:

• Condensing boilers
• Atmospheric gas-fired boilers
• Gas blown boilers
• Industrial ovens, large-scale establishments
• Wood-fired stoves
• Other Advantages METALOTERM MasterFlue
• No terminal bridges, better heat protection
• High-temperature silicone sealing ring
• Fast-build system without the need of sealants
• High quality insulation uninterrupted from base plate to top stub

For more information: www.airtherm.co.uk

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Case Study - Raich Leisure Centre, Sunderland

During December 2012, Airtherm Engineering worked closely with the contractor at Raich Leisure Centre in Sunderland to complete the installation of a Hamworthy Masterflue system.

The flue system installed comprised of a 3m horizontal run and a 7m vertical, incorporating the necessary drains to allow any unwanted condense to evacuate the system.

Our engineers had been given only ten days to arrange both a site meeting and install the complete flue system to meet our clients program. Not only did we fulfil our obligation but Airtherm were a massive 15% cheaper than the boiler manufacture’s own preferred company (on a ‘like for like basis and using the exact same Masterflue( MF) product range).

Consultant: Sunderland Council
Client: RM Myers & Co Ltd
Sector: Leisure
Product: MasterFlue System
Equipment: Hamworthy 220/660he

Application: High Efficiency
Boilers: Hamworthy
Model: 2 x Modumax 220/660he
Application: Chimney / Flue system
Operating mode: Dry / Wet
Pressure: Positive pressure
Working pressure: 200 Pa (product will operate 1000pa max)
Inner wall: 316L1.4404/1.457 thickness ≤ Ø250 0,4 mm, ≥ Ø300 0,5 mm
Outer wall: AISI 304/ 1.4301 thickness 0,5 / 0,6 mm
Insulation: 25mm thick Rockwool insulation
Sealant:Tri-lip 'o' type silicone ring
Fuel type: Gas


Other Applications of the METALOTERM MasterFlue:
• Condensing boilers
• Atmospheric gas-fired boilers
• Gas blown boilers
• Industrial ovens, large-scale establishments
• Wood-fired stoves
• Other Advantages METALOTERM MasterFlue
• No terminal bridges, better heat protection
• High-temperature silicone sealing ring
• Fast-build system without the need of sealants
• High quality insulation uninterrupted from base plate to top stub

For more information: www.airtherm.co.uk

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Airtherm's New Associate Director - David Brown

Airtherm are pleased to announce the appointment of David Brown, who joins our vibrant and enthusiastic team of individuals, in the capacity of Associate Director. 

David has 22 years of sales experience in commercial and industrial heating & ventilation. He has worked for some large, well-known corporate companies, as well as a close competitor for 9 years, where he previously held the role as Renewables Manager and specialised in Natural Ventilation, Ventilation Controls and Natural Lighting Systems.

He also has an extensive knowledge of Chimney & Flue and Commercial Kitchen Canopy systems. David also has a wealth of experience in the field of Health & Safety which brings an added value to our business.

David will be a welcome addition to the company.

Airtherm have also appointed Technical Sales Engineers covering the North West, East Midlands, West Midlands, North Wales, London & Scotland.

If you have any enquiries in these locations, please call our office on 0844 809 2509 or email sales@airtherm.co.uk to arrange a meeting. 




For more information: www.airtherm.co.uk

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Case Study - Stuart Bathurst Catholic School, Wednesbury

Airtherm Engineering Limited has recently completed a multiple flue installation at Stuart Bathurst High School, Wednesbury in the West Midlands. The flue product selected was our single wall stainless steel product, used predominantly on fully condensing boiler applications. 

We worked closely with the consultant and contractor Spagas Limited, to ensure a cost-efficient solution. Airtherm also supplied and installed a flue system featuring a horizontal common header. The 12m high vertical stack serves three Broag boilers located in one of the boiler houses in the School.

Stuart Bathurst Catholic High School is a College of Performing Arts, and offers a distinctive Catholic inclusive education based on traditional Christian values and high expectations.

Consultant: Spicer Surveys
 
Client: Spagas Limited
 
Sector: Education
 
Products: MasterFlue System
 
Equipment: Broag Quinta 115
 
Application: Condensing

• Boilers: Broag
• Model: Quinta 115
• Application: Chimney / Flue system
• Operating mode: Wet
• Pressure: Negative / positive pressure
• Working pressure: 200 Pa (product will operate 1000pa max)
• Inner wall: 316L1.4404/1.457 thickness 0.5mm Ø150
• Outer wall: N/a
• Insulation: N/a
• Sealant : Tri-lip 'o' type silicone ring
• Fuel type: Gas

Other Application METALOTERM MasterFlue:

• Condensing boilers
• Chimney liner
• Air inlet & ventilation systems

Other Advantages METALOTERM MasterFlue:

• Stress free thermal expansion
• Can be connected to Metaloterm® MF
• High quality stainless steel system
• High temperature silicone sealing ring
• Universal application
• Fully welded system with sealing ring
• Light weight system

For more information: www.airtherm.co.uk

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Case Study - Slough Police Station

Airtherm Engineering has completed another installation using Nova commercial product serving two existing Potteron Derwent atmosperic boilers & one Hamworthy water heater at Slough Police station.

Nova is a new breed of chimney system that offers a single solution for virtually all of today's combustion requirements. The system is a true multi-fuel / multi-application product - whether being used to serve a solid fuel stove, vent the latest high efficiency condensing appliances or Biomass wood chip / pellet stove, Nova is the product of choice.

Nova boasts a diameter range covering thirteen sizes and covers domestic and commercial applications. Manufactured from a 316L inner liner, 25mm high density insulated annulus and a grade 304 outer case, Nova is built to last.

Client: Perfect Pipework Ltd
Sector: Public
Products: MasterFlue System
Equipment: Potterton Derwent 
                     Hamworthy DR-LA40
Application: Atmosperic


• Boilers: Potterton Derwent
• Water Heater: Hamworthy DR-LA40
• Application: Chimney / Flue system
• Operating mode: Dry
• Pressure: Negative / Positive pressure
• Working pressure: 200 Pa (product will operate 1000pa max)
• Inner wall: 316L1.4404/1.457 thickness Ø500 1 mm
• Outer wall: AISI 304/ 1.4301 thickness 0,6 mm
• Insulation: 25mm thick Rockwool insulation
• Sealant : Tri-lip 'o' type silicone ring
• Fuel type: Gas
• Suitable for fully condensing applications
• Fully welded construction
• High level insulation
• High thermal resistance
• High speed twist lock jointing system to aid installation
• Without seals the product is suitable for multi fuel applications up to 450°C

Diameters: 100mm - 600mm

Construction: Twin Wall Insulated

Material: 316L stainless steel liner and 304 stainless steel outer case

Temperature: 450°C Continuous without seals 200°C with seals fitted
 
Pressure capability: 200Pa (P1)

Mode of operation: Negative or positive pressure
 
Approvals:
BS EN 1856-1 T460 N1 D V2 L50050 G(50) Nova SM
BS EN 1856-1 T600 N1 D V2 L50050 G(50) Nova SF
BS EN 1856-1 T200 P1 W V2 L50050 O(50) Nova SM c/w seals

For more information: www.airtherm.co.uk

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Case Study - Mansion Studios, Nottingham

Chimney and flue specialist Airtherm Engineering Limited was appointed, in August 2012, as the preferred flue installer at a new Mansion Studios refurbishment in the City Centre of Nottingham.

Bowman House is an existing 1970’s, 4-storey office building which has been converted into 140 one-bed studios for students. The building is now known as Mansion Studios. 
 
The brief was to design, supply and install two twin wall stainless steel insulated flue systems, each serving high efficiency heatmaster boilers and a chp unit, all located in the basement of the building.

The boiler house was extremely congested and gave our installation team a challenging time, but due to their experience we overcame the obstacle's and completed on-time.

Both systems complying with BS & Clean Air Act Memorandum.

Consultant
Clancy Consulting

Client
MVS Limited

Sector
Education

Products
Dinak DWHp

Equipment
3 x Heatmaster 85T
1 x ENER-G E25 CHP
 
Application
Condensing


Boilers: Heatmaster 85T 
 
CHP:  ENER-G E25
 
Model: Modulex 1 x 290kw &  2 x 900kw
 
Application:  Chimney / Flue system
 
Operating mode: Dry / Wet  
 
Pressure: Negative Pressure
 
Working pressure: 200 Pa (product will operate 1000pa max)     
 
Inner wall: 316L1.4404/1.457 thickness
 
Outer wall: AISI 304/ 1.4301 thickness 0,5
 
Insulation: 30mm thick Rockwool insulation
 
Sealant: Tri-lip 'o' type silicone ring 
 
Fuel type: Gas        

For more information: www.airtherm.co.uk

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Case Study - Addensbrooke House, Telford

Airtherm Engineering Limited has recently completed a flue installation, working closely with the contractor at Addensbrooke House, Telford, Shropshire.

The flue system(s) selected was the ‘Masterflue’ by Hamworthy Heating used on their own boiler range.

The flue system installed is serving four new high efficiency condensing boilers and comprises of a twin wall stainless steel inner & outer casing with 25mm insulation. The flue system has a 3.5m horizontal and a 2.5m vertical run, incorporating the necessary drains to allow any unwanted condense to evacuate the system.

Also in the same plant room is a Hamworthy DR-LA 75 water heater which Airtherm has supplied and installed a twin wall stainless steel flue system from the appliance to termination. Both systems comply with BS & Clean Air Act Memorandum.

Consultant
Telford & Wrekin Council

Client
TDR Mechanical Limited

Sector
Education

Products
MasterFlue System

Equipment
Hamworthy PV105c

Application
Condensing

Boilers:                      Hamworthy
Model:                       Modumax  Variheat PV105
Application:              Chimney / Flue system
Operating mode:      Wet  
Pressure:                  Negative / positive pressure
Working pressure:   200 Pa (product will operate 1000pa max)     
Inner wall:                  316L1.4404/1.457 thickness Ø300 0,5 mm
Outer wall:                 AISI 304/ 1.4301 thickness 0,5 / 0,6 mm
Insulation:                 25mm thick Rockwool insulation
Sealant:                    Tri-lip 'o' type silicone ring 
Fuel type:                 Gas           

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Case Study - Swan Lane First School, Evesham

The flue system selected was a stainless steel fully welded twin wall 4 hour fire rated system with 30mm insulation.

Airtherm provided a cost-efficient solution for the client and furthermore we exceeded their expectations when our tender was some margin under the original budget offered by the Hamworthy flue division.

The flue system installed comprised of a 2.5m horizontal run and a 3m vertical, incorporating the necessary drains to allow any unwanted condense to evacuate the system.

Consultant
Worcestershire Council

Client
EMS

Sector
Education

Products
MasterFlue System

Equipment
Hamworthy PV110c

Application
Condensing

Boilers: Hamworthy
Model: Modumax Variheat PV110c
Application: Chimney / Flue system
Operating mode: Wet  
Pressure: Negative / positive pressure
Working pressure: 200 Pa (product will operate 1000pa max)     
Inner wall: 316L1.4404/1.457 thickness ≤ Ø250 0,4 mm
Outer wall: AISI 304/ 1.4301 thickness 0,5 / 0,6 mm
Insulation: 30mm thick Rockwool insulation
Sealant: Tri-lip 'o' type silicone ring 
Fuel type: Gas         
        
Other Applications for METALOTERM MasterFlue
Condensing boilers
Atmospheric gas-fired boilers
Gas blown boilers
Industrial ovens, large-scale establishments
Wood-fired stoves

Other Advantages of METALOTERM MasterFlue
No terminal bridges, better heat protection
High-temperature silicone sealing ring
Fast-build system without the need of sealants
High quality insulation uninterrupted from base plate to top stub

www.airtherm.co.uk

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Case Study - Grange Farm Primary School, Coventry

Airtherm Engineering Limited has recently completed a flue dilution installation, working closely with the consultant and contractor at Grange Farm Primary School, Coventry. 

The flue system selected for the project needed to be aesthetically pleasing, discreet and blend in with the building features, so a dilution system was chosen over a traditional system, which the client was in total agreement.

Airtherm provided design calculations for the project using the latest iCalc sizing package, along with compressive technical submission and Auto Cad drawings for approval prior to manufacture and ordering of the equipment.

The flue system installed comprised of a 300mm diameter fully welded dilution header, flatk Woods bifurcated epoxy coated fan, stainless steel silencers, volume control regulators and supply and discharge louvres, situated 2m from ground level to comply with Clean Air Act Memorandum.

Consultant
IDP Midlands

Client
Mitie Build

Sector
Education

Products
MasterFlue System

Equipment
Mikrofill Ethos 90kw

Application
High Efficiency Condensing

Boilers
Mikrofill -
• Model: Ethos 90kw
• Application: Flue Dilution System
• Operating mode: Wet
• Pressure: Negative / positive pressure
• Working pressure: 200 Pa (product will operate 1000pa max)
• Inner wall: 316L Stainless Steel fully welded
• Sealant: tri-lip 'o' type silicone ring
• Fuel type: Gas

Considerations
Airtherm can offer a fan dilution system to suit many appliances, from modern high efficiency condensing to gas blown and atmospheric boilers, however the principal of diluting the products of combustion is to reduce the CO² content at the discharge to below 1%, CO 50ppm & NOx 5ppm (BS6644 / IGEUP/10) in line with current legislation.

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, along with other certain provisions with respect to the final discharge height which is calculated based on the total kw input load of the plant.

Good Practice
There are two methods that can be considered when designing the dilution system -
• Air is directly taken from the outside.
• Fresh air is taken from within the plant area.

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.

www.airtherm.co.uk

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Case Study - St Bernard’s Catholic School, Birmingham

Airtherm Engineering Limited has recently completed a flue installation, working closely with the consultant and contractor at St Bernard’s Catholic School, Birmingham. The flue system selected was the ‘Masterflue’ by Hamworthy.

Boilers: Hamworthy
 
Model: Modumax HE Variheat PV105
 
Application: Chimney / Flue system
 
Operating mode: Dry / Wet    

Pressure: Negative / positive pressure 

Working pressure: 200 Pa (product will operate 1000pa max)     
 
Inner wall: AISI 316L1.4404/1.457 thickness ≤ Ø250 0,4 mm, ≥ Ø300 0,5 mm
 
Outer wall: AISI 304/ 1.4301 thickness 0,5 / 0,6 mm
 
Insulation: 25mm thick Rockwool insulation
 
Sealant: Tri-lip 'o' type silicone ring 
 
Fuel type: Gas/Oil/Coal/Wood
                                                                                                            
Other Applications for the METALOTERM MasterFlue

Condensing boilers
Atmospheric gas-fired boilers
Industrial ovens, large-scale establishments
Wood-fired stoves

Other Advantages of the METALOTERM MasterFlue

No terminal bridges, better heat protection
High-temperature silicone sealing ring
Fast-build system without the need of sealants
High quality insulation uninterrupted from base plate to top stub

Read more »

Case Study - St Gregory's RC School, Birmingham

Airtherm Engineering has completed another installation using Nova product serving two high efficiency wall hung Mikrofil Ethos 90kw condensing boilers at St Gregory's RC School in Birmingham.

Nova is a new breed of chimney system that offers a single solution for virtually all of today's combustion requirements. Nova is a true multi-fuel / multi-application product, whether being used to serve a solid fuel stove, vent the latest high efficiency condensing appliances or Biomass wood chip / pellet stove, Nova is the product of choice. With a diameter range covering thirteen sizes, Nova covers domestic and commercial applications. Manufactured from a 316L inner liner, 25mm high density insulated annulus and a grade 304 outer case, Nova is built to last. Unlike some of our competitors, Nova is designed with a rapid fit multi-barbed twist lock jointing system.

This not only offers a fast and simplistic installation method but also a durable and strong joint allowing a free-standing height of up to 3.0 metres to be support above the last support.

When used on appliances which product high levels of condensation, such as highly efficient condensing appliances, Nova can be retrofitted with a seal to allow both positive pressure and condensate resistance up to 200Pa, based on a maximum flue gas temperature of 200°C. Nova is available in thirteen sizes, ranging from 100mm to 600mm internal diameter. 

• Suitable for fully condensing applications
• Fully welded construction
• High level insulation
• High thermal resistance
• High speed twist lock jointing system to aid installation
• Without seals the product is suitable for multi fuel applications up to 450°C

Diameters: 100mm - 600mm 
Construction: Twin Wall Insulated 
Material: 316L stainless steel liner and 304 stainless steel outer case
Temperature: 450°C Continuous without seals 200°C with seals fitted
Pressure capability: 200Pa (P1)
Mode of operation: Negative or positive pressure

Approvals:
BS EN 1856-1 T460 N1 D V2 L50050 G(50) Nova SM
BS EN 1856-1 T600 N1 D V2 L50050 G(50) Nova SF
BS EN 1856-1 T200 P1 W V2 L50050 O(50) Nova SM c/w seals

2 hour fire rating BS476 part 20
 
CE Requirements:
Ventilated support components must be used where the flue gas temperature exceeds 250°C and where the flue internally passes through a combustible floor. Where used for condensing and positive pressure applications up to 200°C, seals must be utilised

• Suitable for gas, oil and multi-fuel appliances
• When used with seals, suitable for condensing and positive pressure applications up to 200Pa at 200°C
• All components are supplied complete with Locking Bands
• Strong jointing system allowing up to 3.0 metres of unsupported product above the last support
• Rapid twist lock jointing system for ease and speed of installation
• Covers both domestic and commercial applications from 100mm to 600mm internal diameter

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Case Study - Oakham Primary School, Dudley, West Midlands

Airtherm have recently designed, supplied and installed a complete twin wall stainless steel flue system serving each MHS Adinox ADI LT 200 modulating boiler at Oakham Primary School in Dudley in the West Midlands.

This installation of a 10m, 3nr MHS Adinox ADI LT 200 flue for a gas condensing boiler system comprised of a twin wall insulated stainless steel pre-fabricated exhaust system, manufactured from a 0.6mm grade 316L inner liner and a 0.4mm grade 304L outer case with the 37.5mm void packed of 128kg/m3 high density insulation.

The system used gives a positive pressure resistance of up to 2KPa and a continuous high temperature capability of up to 760°C independently tested to BS 476: Part 24 for 4 hours.

All of the products used are approved and CE marked to EN 1856-1 and manufactured under a quality assurance scheme, administered by British Standards in accordance with BS EN 9001: 2008.

Airtherm Engineering Ltd only uses branded products which are synonymous with the highest quality - in this case the Dinak product range of flue, chimney and exhaust solutions - and it is this reputation that enables specifiers and contractors to use our versatile product range with total confidence

We can provide technical solutions for the specialist areas of high temperature exhaust systems, serving generators & combined heat and powder units, fan assisted, flue dilution and atmospheric applications.

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.

Each team member holds the correct qualifications for his or her job. All of our engineers are competent in their field and carry all necessary site certification with CSCS cards, IPATH, PASMA and scaffold towers. Our engineers strive towards excellence in each and every project they undertake.

Comprehensive Method Statements & Risk Assessment are generated for each and every project, and issued to our clients and installation team members.

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