Nu-Heat's successful Optiflo manifold has received an upgrade to help it achieve even better performance. System flow rates are measured by sight, but when a system has been in use for some time flow guages can become grimy or occasionally stop giving an accurate reading. Nu-Heat has introduced isolation valves beneath the guages on the manifold so they can be cleaned or replaced if necessary, without having to release the pressure from the system. As before, it arrives preassembled on brackets and has identical space requirements, layout and mounting adaptability. Spare parts are readily available. The product continues to be made by a UK supplier and the price remains the same. 

The launch of Iconic Internal Doors brings an extensive and luxurious collection of contemporary and traditional doorset designs to the UK construction industry.  Iconic has intelligently sourced a product which is 100% FSC-certified material and therefore described as 'pure'.  Eco-engineered using selected Taeda wood, found throughout the Americas, the doors are subjected to a unique finishing process allowing faithful matching to achieve a traditional solid hardwood appearance.  Chris Wood, director, comments "People choose hardwoods because they are perceived to have superior appearance and consequently carry a very high price.  Our doorsets are significantly more economical without compromising quality and aesthetics."

Iconic Internal Doors - naturally beautiful doors, 100% 'FSC Pure'

The Black Millwork range of doors and windows has been extended to include bi-fold doors.The bi-fold doors are manufactured from laminated timber, engineered pine or oak, aluminium timber clad oak or aluminium and supplied fully finished in white and standard, with additional options for more RAL colour variations. Units can also be stained or lacquer finished. All units have been tested to EN1279 and fully glazed with Pilkington Toughened Low E glazing, with upgraded Thermix spacer and argon fill.

Gary Hutton, general manager of Black Millwork comments, "The wide choice of tailor made profiles allows specifiers to select a door that is specific to the needs of their property".

All Black Millwork bi-fold doors come with a ten year guarantee on sealed units and hardware, five years on paint finish against fading and ten years on timber portions.

The advantages offered by full fill insulation over part fill in masonry cavity walls have been brought into focus by Knauf Insulation. One of their key findings being that the installed cost of DriTherm glass mineral wool cavity slabs show almost a 50% saving over part fill rigid foam boards.Costings were calculated using the SPONS Architects and Builders Price Book 2008 and are based on the requirements for a typical semi-detached house with a target U-value of 0.29W/m2k. 

The installed cost is far from being the only benefit - it's also easier to achieve more reliable thermal performance than the alternative part fill rigid foam board solution. The flexibility of DriTherm Cavity Slabs in being able to follow wall contours results in far fewer airspaces on the warm side of the insulation than would be experienced when installing rigid foam boards. With DriTherm, the slabs also knit together at joints preventing heat loss through the gaps commonly associated with rigid foam boards  

Firebird, the UK's fastest growing oil boiler brand, has introduced a new Slimline Combi to their premier Enviromax range.At just 520mm wide, the Enviromax Slimline Combi is a high efficiency SEDBUK A rated boiler which is ideally suited as a replacement for an existing standard efficiency combi. It has a slender storage tank which delivers excellent hot water performance with the minimum of energy losses and a fast recovery rate. Even the hot water pipes inside the boiler are insulated to ensure every last watt of energy is saved. The slimmer tank design and pipe insulation are designed to achieve a high efficiency rating when the new European Efficiency Directive comes into force for oil fired combi boilers.