Modern Building Services

MODERN BUILDING SERVICES SEPTEMBER 2022 33 WHAT’S NEW A guide to new products and services for MBS readers. MBS Riello offers premix burners up to 3MW Riello RX premix packaged burners are available in outputs up to 3MW, offering NOx levels of less than 40mg/kWh, with high turndown ratios of up to 8:1, across a wide range of models. The RX burners feature an exclusive design that includes a patented woven wire gauze ‘sock’ covering the combustion head cylinder. Gas and combustion air are mixed upstream of the combustion head and then pass-through precision-located ports and the gauze ‘sock’ to ignite on the external surface of the combustion head. This arrangement enables a very compact flame with a diameter directly related to the burner firing rate, ensuring precise heat control and optimum efficiency at all loads. RX burners can be used in conjunction with variable speed drive motors to reduce electricity consumption and lower noise levels even further than the typical 30% noise reduction compared to many other combustion applications. Control options include progressive two-stage operation and fully modulating via 0-10V or 4-20 mA. Full electronic control with an operational and diagnostic display is also available. www.rielloburners.co.uk Free training from Johnson & Starley Did you know that Johnson and Starley offer engineers free training which covers installation, servicing, fault finding, and lead generation?. Training takes place at J&S HQ, Johnson & Starley Ltd, Rhosili Road, Brackmills Northampton. Register your interest to attend future courses now! Contact marketing@johnsonandstarley.co.uk to register. Johnson and Starley offer free lead generation to all installers on their database. All customer enquiries are replied to with a full suite of literature, replacement options, and the names of up to three installers in their area. We look forward to welcoming you. www.johnsonandstarley.co.uk Modutherm HIU is the best performing unit on the market following testing results from BESA The unit has achieved top marks, registering the lowest VWART (volume-weight average return temperature) in both the high- and low-temperature tests, with values of 26 o C (high) and 24 o C (low) respectively. MTA Plus HIU is perfect for use in 4th generation low-temperature heat networks that utilise heat pumps or boilers. The BESA UK standard is themain test regime fromwhich specifiers should compare HIU performance. CIBSE CP1 best practice also states that where indirect HIUs are specified, they should be used with a tested volume-weight average return temperature (VWART) of less than 33 o C – which the MTA Plus improves upon by over 30%. The MTA Plus is an indirect HIU featuring two high-performance SWEP heat exchangers. These allow the unit to deliver impressive outputs, offering DHWup to 75kWand heating up to 20kW. www.modutherm.co.uk