Hurlstones

Aquality are proud that their Rainwater System forms part of the green design of The Shard, which had been designed to deliver exceptional environmental credentials, with sustainability a clear priority at every stage. When the Shard opens in 2013 the glass prism will makes it Europes tallest skyscraper at 310metres above the Thames.

The Westfield Shopping Centre in London gave Aquality the opportunity to be involved with the largest Indoor shopping mall in Europe, with 150,000m² retail space and  21 million visitors expected in the first year. The Rainwater harvesting design used 600mm average rainfall on a 32000m² roof  which would produce 11000m3 water to supply approx 200 public w/cs using approx 29000m3 pa.  To cope with this they made use of 2 x 2000m3 attenuation tanks together with their Rainmanager AC5000 with integrated triple booster pump set and mains water back-up. By using the attenuation tanks the payback on the additional system cost would be less than 5 years.

The Government has announced that the long awaited Renewable Heat Incentive is now open for applications. The RHI will offer ongoing financial support to owners of renewable heating systems like ground source heat pumps. The support is based on the amount of heat produced by the system. The payments (using the tariffs in the table below) will be made for a period of 20 years for qualifying systems and are index linked. A heat pump system will now be a great financial choice as well as helping to reduce energy bills and carbon emissions. 

RHI support levels for non-domestic heat pump installations: 

Size of ground source heat pump system Tariff 

Output less than 100kW 4.5p/kWh 

Output more than 100kW 3.2p/kWh 

Are you interested in a potential 12% return on capital and a quick payback on a ground source heat pump system? Call us on: 0121 502 2517

Are you an architect, consultant or contractor with a client looking for a renewable heating system? To find out how your client could benefit from the RHI call us on: 0121 502 2517

Do you need help with your RHI application? Call us on: 0121 502 2517

Eligibility for the RHI

The building must be non-domestic 

The system must have been commissioned after 15th July 2009 and you must not have received any capital grant or be prepared to pay the grant back 

Separate multiple domestic properties are eligible if heated by a single plant room and connected by district heating pipe 

The installer must be MCS accredited .

Heat meters must be located correctly 

Fossil fuel boilers are allowed to be installed alongside heat pumps but they must be metered separately 

The system can be used for cooling as well as heating although payments are only made for the heating element of the demand 

The heat pump will need to be serviced according to the manufacturer’s recommendations 

We can provide advice and illustrations on what benefits you can obtain from your particular heating system plans and help with RHI applications. Call 0121 502 2517 email  info@hurlstones.net  or visit our website http://www.hurlstones.net  for further details.

We look forward to working with you to take advantage of this ground breaking new support mechanism in the coming years. We have prepared a detailed briefing note to help you understand the key points which relate to biomass heating of clean wood fuel and point you to the relevant documents and sections on OFGEM's website.

Are you interested in a potential 12% return on capital and a quick payback on a ground source heat pump system?

Call us on: 0121 502 2517

The preferred method (HTM 04-01 refers) of Legionella control is by utilising a temperature regime: keep the hot supply above 60°C to kill bacteria and maintain the cold water supply below 20°C (Legionella is dormant at these temperatures) and ensure regular turnover of water to avoid stagnation.

Regular water system flushing, which reduces biofilm, should be employed to maintain water quality and reduce the opportunity for bacterial colonisation downstream. Disinfection of the terminal fittings also aids this process and this is easily achieved using the Optitherm's Thermal Disinfection Adaptor.

The Thermal Disinfection Adaptor (Part No. 5963) allows the internal surfaces and mechanisms of the Optitherm thermostatic tap to be fully disinfected by hot water at its supply temperature, usually around 60°C. The adaptor reroutes the hot water supply to the cold port of the mixing valve, through the valve mechanism, which reacts by further opening the cold port, and is then discharged at the tap outlet.  The heat from the water rapidly spreads, by conduction, throughout the tap's entire metal body pervading all areas and killing any bacteria present. L8 - Control of Legionella Approved Code of Practice recommends a running time of 5 minutes for complete disinfection.

This disinfection process is illustrated in a narrated animation.

Approximately 70 litres of drinking water and approximately 44 litres of waste water can be saved or avoided per person per day in domestic households, and significantly more in hotels and apartment buildings using a greywater recycling system.

Reusing water reduces drinking water and wastewater costs. The greywater recycling system therefore pays for itself in a few years. This reuse of water reduces the load on valuable ground water reserves, and also reduces the drainage burden.

After intelligent processing, slightly polluted water from the bath, shower and washbasin is reused in the house, e. g. for flushing the toilet, watering the garden or for cleaning purposes.

Since this non-potable water is derived from normal water use, greywater users are not dependent on any particular form of building or levels of rainfall. This daily supply of water is available wherever baths and showers are used.
 
The Aquality greywater recycling system offers a wide range extending from detached houses and flats to hotels, residential homes and sports centres.

Greywater recycling can also be increasingly used in urban developments that are not well placed to make use of rainwater.
Intelligent Water Management is also capable of using greywater and rainwater in combination. This can serve to cover consumption peaks.

The CIBSE reclaimed water brochure defines 'grey water' as water that was previously supplied by water undertaker as 'wholesome water' but which has already been used in washbasins, baths or showers.
 
Wholesome water is defined as water supplied by Water Supplier and complying with the requirements of Regulations made under Section 67 of the Water Industry Act 1991.

Download the Aqua-lity Greywater Brochure and questionnaire here.