High efficiency boilers with low emissions
January 1st 2007 Hoval Ultragas pre-mix condensing gas boilers are designed to couple high efficiency with low emissions and low cost of ownership. Featuring Hoval's Ultra Clean combustion system, they are available in fourteen sizes with maximum outputs between 50 and 650 kW. Twin UltraGas units available with outputs of 250- 1300kW, complete with common flue and optional pipework/header kits. When tested to the requirements of the European Boiler Efficiency Directive Ultragas boilers achieve net efficiencies of up to 109.5%, NOx levels of 20mg/kWh and CO levels of 10 mg/kWh. All UltraGas boilers have a connection at the rear to accept a ducted fresh air supply for room sealed applications. More articles from Hoval Limited: | 
