Case Study · Commercial Heating
Hot-Water Boiler Burner for a Hospital
A hospital's 2.8 MW heating boiler had to hold 90C supply through varying load with no flameout risk. A Riello RLS250 modulating burner with a certified train delivered stable comfort heating and lower gas use.
The challenge
Heating load swung with weather and occupancy, so supply temperature drifted.
Any flameout in winter risked freezing the building's heating loop.
The plant wanted lower gas cost without a full boiler replacement.
Combustion had to be clean for the urban site's air permit.
What we supplied & did
Fitted a Riello RLS250 modulating gas burner matched to the 2.8 MW loop.
Installed a Dungs safety valve train with leak test and dual shut-off.
Used a Siemens program controller covering ignition, flame proving and interlock.
Tuned the air/fuel curve on site and applied low-NOx adaptation.
Measured results
What changed on the line
Supply temperature stays at 90C through load swings, protecting the loop in winter.
Reliable ignition removed flameout risk during peak heating demand.
Optimised combustion saved about 9% gas versus the old burner.
Emissions stayed within the urban air permit.
Equipment used in this project
Each category page covers what the part does, how it fails and what to check before ordering.
Running a similar duty?
Send the load, the fuel and the process profile — we come back with matching burner, controls and a safety train, and a quotation.
Request a QuoteKeep reading
Related solution
Hot Water Boiler
How Zhongli Weiye equips this industry — products, FAQs and a field-proven project.
View solution →