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Condensing Boilers
Condensing Boilers

For many decades, hospitals have relied on steam boilers, using steam-fired heat exchangers to make heating hot water and domestic hot water. Steam systems operate at combustion efficiencies of around 80%, with system efficiencies even lower. Replacing steam boilers with hot water boilers may improve system efficiency somewhat, but still operates with 20% waste in the combustion process. Condensing boilers, operating at combustion efficiency of 90-95% in a system designed with low water temperatures, further reduce the carbon output of these systems. However, combustion of natural gas releases carbon, so even condensing boilers are not a good solution. We need to eliminate combustion altogether. No more boilers!

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