SCHIEDEL CHIMNEY SYSTEMS LTD
CROWTHER INDUSTRIAL ESTATE
TYNE & WEAR NE38 0AQ
Tel: 0191 416 1150
Fax: 0191 415 1263
Suppliers of: Flexible flue Liner, stainless steel flue Liners for chimney, twin wall flue liner residential and commercial flue liners
Schiedel Chimney Systems the leading brand for stainless steel flues in the UK and Ireland and the widest choice of chimney systems and technical support in the country.
Our pioneering approach, resulting in the development of optimum performance features that exceed European design and quality standards, also provides numerous solutions to stringent environmental disciplines. These excellent capabilities, together with state-of-the-art manufacturing systems, a unique distribution and product information network ensure that Schiedel Rite-Vent remains the leader in the field of flue and chimney production.
Schiedel Chimney has the widest range of stainless steel flues for use with Residential boilers, stove heaters, cookers and open fires.
Schiedel Chimney has Commercial sized flues up to 705mm diameter for use with a wide range of chimney and venting applications. In addition we are also able to advise on installation or design and install the product for you.
Our Product Range Includes:
- Steel Chimney Systems - The range covers single wall, twin wall, flexible liners and flue boxes, in diameters from 75mm to 300mm. There are options for oil, gas, wood and solid fuel.
- Ceramic Chimney Systems - A range of high performance rebated ceramic flue liners, which are fully CE tested and approved and are fully compatible with the increasingly efficient modern appliances, as well as meeting the more traditional soot fire requirements.
- Pumice Chimney Systems - Pumice is a natural insulator; this is the unique property that separates pumice from all other chimney material. Schiedel Isokern is noteworthy for its flue & chimney products manufactured using high quality pumice which is recognised throughout Europe and USA.
- Additional Ranges -
Technical information can be found by visiting our website at www.schiedel.com/uk/ or visiting our Literature library here on BPi
Other offices: Coalisland: www.schiedel.co.uk and email firstname.lastname@example.org Carrickmacross: www.schiedel.ie and email email@example.com
HETAS TRAINING FOR 2020 FROM SCHIEDEL
HETAS is the governing body for solid fuel domestic heating appliances, fuels and services and is responsible for the registration of competent installers and businesses. Schiedel Chimney Systems delivers a range of comprehensive HETAS courses specifically designed for installers of wood-burning stoves, fireplaces and biomass boilers as well as retailers. The courses are held in our purpose-built training centre in Washington, Tyne & Wear.
Safety and Sound Business Sense
The prime motivation for the HETAS training and registration is safety as the dangers of incorrect installation are obvious. As well as fire, there’s real potential for serious health concerns with the possibility of noxious and potentially fatal gases being released into the home if solid fuel appliances are incorrectly installed.
Carbon Monoxide is the most dangerous. This colourless and odourless gas is formed by the incomplete combustion of solid fuel and other fossil fuels. In day to day use, it’s likely that a certain amount of CO will be formed during the normal burning process, with more produced where burning is inefficient. Ensuring that all the gas is evacuated safely up and out of the chimney and doesn’t leak into the home is essential. Installers and their governing bodies must take these potential dangers seriously; indeed HETAS requires that technical qualifications be renewed every five years to ensure that training is up to date.
Safety aside, qualifying as a certified installer also makes sound business sense. The growth of the renewable energy sector has led to an increase in popularity for biomass, wood and solid fuel installations. The Stove Industry Alliance (SIA) states that although more than one million UK homes already have wood burning stoves and fireplaces, demand is still high. The SIA quotes recent annual UK sales of wood-burning stoves of more than 175,000 units – there’s lots of work to be had!
There’s scope for further professional opportunities too. Once you have HETAS approved solid fuel installation qualifications (H003 or H004) you’ll be able to go on to register with the HETAS Competent Persons Scheme, which will mean you can self-certify that your work complies with the relevant building regulations, and issue the customer with a certificate of compliance. This will give you a real professional edge as all installations must be subject to a Building Notice that must otherwise be applied for by the householder. If the householder has to apply to the Local Authority for one of these notices themselves, they’ll face fees of up to £300, so you’ll be saving them time and a lot of money.
Training for Retailers
For retailers, we offer training that will help get your staff up to speed. Our specialist HETAS Approved Retailer Course aims to ensure that your staff are qualified to advise customers on a range of appliances and confident in discussing issues such as maintenance, safety, government regulations and fuels. We can offer this in your own showroom if the training group numbers four or more.
We are proud to be approved to deliver HETAS training courses helping to ensure that solid fuel heating engineers in the Newcastle area are working safely and within the law.
Find out more about our training visit:
NOISE REDUCTION WITHIN FLUE AND CHIMNEY SYSTEMS
Reducing noise within the Industry
The first thoughts about safety at work are always about physical injury prevention as well as inhaling fumes, hazardous substances, etc. However, Occupational Noise, which is the amount of acoustic energy received by an employee of a company, can cause permanent damage if it is continuous.
In the UK, The Control of Noise at Work Regulations 2005, came into effect for all industries from April 2008, which is quite late when you consider that the harm hearing loss can cause. Harm such as Tinnitus, which is the perception of noise in the ear or head, caused by a problem with the inner ear.
The sustaining of high noise levels can also mask warning signals, prevent concentration and vital communication.
Most authorities around the world have agreed that noise becomes dangerous when it’s higher than 85 decibels during a typical 8-hour work shift. However, noises under 85 decibels can also cause issues with the general public who are in and around the working environment.
If a noise can’t be reduced by engineering the equipment, then acoustic quieting is required. This is the process of dampening vibrations from machinery and systems such as flue systems.
With the increasing demand for noise attenuation, the demand for noise reduction from flues and chimneys in marine and industrial situations mean that many companies have developed their own silencer programmes. These tend to be combined with flue systems to have a product range which is reducing sound at the design stage
Why noise reduction?
Not all noise is the same. Sound is pulsating air; how often it pulsates indicates the frequency. Normally different sources have a different profile over the frequencies. For example, flue gas noise and noise from boilers or generators tend to be at different frequencies – which demand different types of silencers.
Flow noise will occur in flue system where the velocity of the flue gases exceeds 20 m/s. This will influence the sound spectrum, which means that different types of silencers can be combined for installations to achieve the best results.
The following are the main types of silencers suitable for flue systems from generators and boilers, etc.
Higher frequencies can be reduced by absorption of the sound by using material such as a mineral wool. Put simply, an Absorption Silencer does what it says and “absorbs” the sound within the insulation.
The silencer performs over a broad frequency range in the middle and higher frequencies. The human ear is sensitive to these range of frequencies.
These silencers are commonly installed close to the point of termination, as this helps attenuation of flow noise for the end of the exhaust, before entering the atmosphere.
To reduce sound in the lower frequencies, and therefore getting an overall reduction, a resonance silencer is required. Combinations of silencers mean that the noise intensity can be drastically reduced over the full frequency range.
A typical Resonance Silencer is designed to neutralise the low frequency noise generated by diesel engines, boilers, CHP units etc.
The silencer itself is divided into separate sections which are interconnected. The flue gasses pass through the centre of the silencer and the sound generated from these gasses has varying frequencies. These different frequencies rebound off the inside of the resonator and tend to cancel each other out causing the noise to reduce. Also, the silencers expand the flue gasses therefore reducing sound.
Resonance Silencers are commonly installed close to the sound generating source, such as a boiler or engine, thus preventing the low frequency noise spreading through the full length of the exhaust system.
In projects where two separate silencers are not applicable, especially when space is at a premium, a combination type silencer can be used, as they are based on a combination of the resonance and absorption principle, providing excellent sound reduction across the entire frequency range.
Combinations of different silencer types
Alternatively, if a flue system is modular in design, then the various types of silencers can be implemented in one exhaust system, resulting in excellent acoustic performance of the total system.
It’s recommended that you choose a supplier with special calculation software, which will allow you to calculate the final noise level by input of the sound spectrum and the silencer type.
Also, the calculation should allow you to input the silencer specification, and also the desired final noise level to make the correct choice.
When looking for a silencer for commercial use, there are a number of aspects to look at.
Look at twin wall and pre-insulated variants in stainless steel.
Single system from start to end, with integrated silencers. No extra flanges.
Silencers which are equipped with easy connections to existing flue system
Lightweight properties, as these will complement the existing weight of a flue system, which also help with reducing vibrations to surrounding structures
Look for system with internal thermal expansion to avoid constructing expensive compensators and avoiding the need for flexible mounting kits.
For more details on our range of Silencers, please contact us.