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  • District heating systems for housing association homes
    Stokvis Energy Systems
    Paul Sands of Stokvis Energy Systems reflects on the reasons social housing landlords are returning to the use of centralised heating systems. In recent years our social housing sector has ‘rediscovered' an appetite for...
  • How to calculate the "delta T" for a radiator
    AEL Heating Solutions Ltd
    After you have worked out the heat requirement for your room (AEL's easy-to-use BTU calculator will help you do this), how can you check that the radiator you have chosen will provide enough heat output? There is a simple...
  • AEL cast iron radiators – FAQ
    AEL Heating Solutions Ltd
    Q What are the advantages of using cast iron radiators? A Cast Iron radiators retain their heat and therefore emit heat for longer periods into your room unlike a modern pressed steel radiator. Cast iron radiators are also...
  • Flexible, efficient and safe - plate heat exchangers
    Stokvis Energy Systems
    Paul Sands of Stokvis Energy Systems examines the advantages offered by plate heat exchangers. From modern leisure centres and industrial premises requiring very large quantities of hot water, to rambling old hotels and...
  • Heating outputs: what is a BTU and what is a watt?
    AEL Heating Solutions Ltd
    When discussing the heat output required for a room, It can be confusing when one engineer works with BTU’s and another works with watts. So what is a BTU and what is a watt? BTU and watt are both used to measure the heating...
  • Specifying NSHEVs for smoke and heat exhaust ventilation
    Bilco UK
    NSHEVs are installed in the roof to provide essential ventilation in the event of a building fire. They open, either by sensors or remote control, to exhaust smoke and noxious fumes. It is a simple concept, utilising simple...
  • Increasing heating efficiency with plate heat exchangers
    Stokvis Energy Systems
    This article by Paul Sands, Director of Stokvis Energy Systems, discusses how using modern modulating low water content gas boilers in combination with compact modulating low water content plate heat exchangers can meet hot...
  • Technological advances in boiler manufacturing
    Stokvis Energy Systems
    Technological advances have increased the efficiency of commercial boilers to the extent that established, well-proven technology ensures high efficiency and reliable performance. However, that does not mean the industry is...
  • Considering the options for improving boiler efficiency
    Stokvis Energy Systems
    Paul Sands, Sales and Marketing Director at Stokvis Energy Systems, considers the options for improving boiler efficiency in new and refurbishment situations. To what extent modern condensing boilers actually deliver higher...
  • Rainwater harvesting – simply common sense
    Wilo
    Gary Wheatley, Training & Technical Manager at Wilo UK, explains what rainwater harvesting is and why implementing it for water reuse makes sense from a financial and ecological point of view. He also gives design guidelines...
  • Solar thermal water heating in the leisure sector
    Stokvis Energy Systems
    The Carbon Trust: "Solar water heating can be very effective for swimming pools and is relatively easy to connect to a conventional heating system." Energy costs in a typical sports centre are second only to labour,...
  • Plate heat exchangers for commercial applications
    Stokvis Energy Systems
    A hot water system using a plate heat exchanger (PHE) heats water instantaneously and only when required, making it intrinsically energy-efficient. Calorifiers and direct-fired water heaters are less reliable and can empty...
  • Huge opportunity replacing inefficient circulating pumps
    Wilo
    While fitting high-efficiency circulating pumps is now mandatory, Gary Wheatley, Wilo UK’s Training and Technical Manager, believes that there is a huge opportunity around the replacement of existing inefficient models.
  • Single or two pipe central heating system
    AEL Heating Solutions Ltd
    Single pipe central heating system A single pipe central heating system operates through a main single feed hot water supply pipe which comes from the boiler supplying hot water to each radiator. Each radiator has a smaller...
  • How to improve commercial boiler efficiency
    Stokvis Energy Systems
    Within the commercial market today, approximately 70% of boilers with outputs of 30kW and above are wall-hung. Whether these modern condensing boilers actually deliver higher efficiencies than their old counterparts is...