Extra capacity
May 1st 2007 Hoval has extended the capacity
of its high efficiency Ultragas
condensing boiler range. Single
units now offer capacities from 50
to 720kW, while twin units offer
outputs from 250 to 1440kW,
complete with common flue and
optional pipework/header kits. The
500 and 720kW models are also
available in 8bar versions.
Featuring Hoval's Ultra Clean
combustion system, boilers use a
modulating pre-mix down firing
burner with up to 6:1 turndown (12:1
on twin units) and stainless steel
combustion chamber with a single
pass aluFer tube heat exchanger.
Tested to the European Boiler
Efficiency Directive, boilers achieved
net efficiencies to 109.5%, NOx
levels of 20mg/kWh and CO levels
of 10mg/kWh. More articles from Hoval Limited: | 
