Top Safety Accreditation for Airtherm


Airtherm Engineering Limited is proud to announce our award for accreditation from Safecontractor for its commitment to achieving excellence in health and safety.

Safecontractor is a leading third party accreditation scheme which recognises very high standards in health and safety management amongst UK contractors and is recognized throughout the industry as a way of identifying competent contractors and enhances a company’s ability to attract new contracts.

Safecontractor is applicable to most sectors although it is particularly relevant to food manufacture, property, facilities management, retail and leisure sectors, all of which are big users of contracted services.

John Kinge, technical director of safecontractor said, "Major organisations simply cannot afford to run the risk of employing contractors who are not able to prove that they have sound health and safety policies in place."

"More companies need to understand the importance of adopting good risk management in the way that Airtherm Engineering has done. The firm’s high standard has set an example which hopefully will be followed by other companies within the sector.”

Under the Safecontractor scheme, businesses undergo a vetting process which examines health and safety procedures and their track record for safe practice. Those companies meeting the high standard are added to the Safecontractor database.

Client-organisations who sign up to the scheme can access the database, enabling them to vet potential contractors before they even set foot on site.

Over one hundred and seventy major nation-wide businesses, from several key sectors, have signed up to use the scheme when selecting contractors for services such as building, cleaning, maintenance, refurbishment or electrical and mechanical work.

Potential clients increasingly recognise the scheme and accept the Safecontractor certificate as a confirmation of competency.

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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.

Clancy Consulting

MVS Limited


Dinak DWHp


3 x Heatmaster 85T

1 x ENER-G E25 CHP


Boilers: Heatmaster 85T 


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:

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Case Study - Hallsville School in Newham, London


Airtherm Engineering's track record of successful and efficient projects was demonstrated by the recent installation of our 'Canvent' Island kitchen canopy system at Hallsville School in Newham, London. The site is located just over 3.2km South East of the Olympic Park and can be seen from the sky-ride system.

The project involved the successful liaising between Fowler Martin, Fredericks Mechanical Limited and Newham Council (consultant, contractor and client, respectively).

The 4100 x 2200 x 600 deep island kitchen canopy was fitted with grease proof recessed lights, stainless steel grease filters and a R102 Ansal fire suppression system which conforms to NFPA standards 17, 17a and 96 and is UL300 listed by Underwriters Laboratories Inc. This was commissioned and handed over to the client.

Consultant: Fowler Martin

Client: Fredericks Mechanical Limited

Sector: Education

Products: CanVent System

Equipment: Cooking Equipment

Input & Extract System

Our Product Range
Our product range extends from simple condense canopies, extract only, island or wall mounted canopies, through to our air injection island systems allowing both input and extract. If required, the input air can be pre-heated for additional internal staff comfort during the cold winter months. All products can be configured to suit each individual application.


All canopies are manufactured from 304 (En 1.4301) or 316 (En 1.4401) stainless steel where specified and are suitably braced to prevent product distortion. All joints are welded and polished. 

Our Canopies are cut, punched and folded into sub sections and factory assembled by means of computer controlled seam welds, and non-visible mechanical fixings. Systems are manufactured to the strict guidelines of DW/172, British Standards and conform to HSE for commercial kitchen ventilation. Wall mounted or island canopies can be manufactured to meet almost any dimension but typically 1000mm to 8000mm long. The system ductwork is manufactured and installed to incorporate cleaning and maintenance access doors to fully comply with DW/144 & TR/19 standards.

Canopy Lighting
The units are designed and manufactured to deal with a wide ranging and varied commercial application, and can deal with humidity, condense rich, as well as hot and greasy environments.
These units are normally recessed into the canopy ceiling providing easy cleaning and maintenance of the unit exterior. This also helps to greatly reduce the build-up of grease and other contaminates usually associated with the commercial kitchen environment.

Recessed Incandescent Units:
•    Approved for use in commercial kitchen applications
•    Meet with guidelines for DW172 & HSE Guidelines
•    Satin finished stainless steel matching faceplates for matching hood interiors
•    Tempered prismatic glass diffusers

Fire Suppression System
The island kitchen canopy was fitted with a R102 Ansal fire suppression system which conforms to NFPA standards 17, 17a and 96 and is UL300 listed by Underwriters Laboratories Inc .

The system was supplied with nozzles, detectors, cartridges, liquid agent, fusible links, pulley tress and elbows as required for the specific commercial kitchen application at Hallsville School.

We can undertake turn-key packages from the simply design and installation of the equipment to providing you with all necessary builders work, electrical wiring and commissioning of the complete system.

For more information:

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Case Study - Capel Manor Primary School, Enfield


Airtherm Engineering Limited has recently completed a twin wall fire rated flue installation at Capel Manor Primary School in Enfield. The flue system selected was from the ‘Masterflue’ range.

The Remeha Gas 210 Eco Pro boilers used at the school are a compact floor standing condensing boiler. The small footprint and ability to be installed back to back makes them ideally suited for fluing.

The client requested Airtherm to attend site, prepare and return a fully comprehensive tender, in which design calculations were carried out ensuring the system was adequately sized to convey the products combustion to atmosphere. Due to the huge bulk stock levels in this particular ‘MF’ and our capabilities in reacting quickly, our dedicated team of time served engineers accomplished the mission to our client’s delight.

We are delighted with our performance once again and look forward to working with the client again.

Consultant: T&B Limited

Client: Perfect Pipework Ltd

Sector: Education

Product: MasterFlue System

Equipment: 2nr Broag Eco 210-6 section boilers

Application: High Efficiency

Boilers: Broag Remeha

Model: Eco 210-6

Application: Chimney / Flue System

Operating mode: 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

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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.

Telford & Wrekin Council

TDR Mechanical Limited


MasterFlue System

Hamworthy PV105c


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