Much of the hydrogen debate focuses on how to produce cleaner fuel. Far less attention is paid to what happens after that fuel is produced: how effectively it can be turned into useful heat and power. That distinction matters as hydrogen demand grows. Global demand reached almost 100 million tons in 2024, yet low-emissions hydrogen still accounted for less than 1% of production, according to the International Energy Agency's Global Hydrogen Review 2025. With high costs still limiting wider adoption, how efficiently hydrogen is ultimately used deserves greater attention.
For buildings and industrial facilities, boilers are part of that equation. Conventional fuel-fired boilers typically generate heat through combustion and transfer it through surfaces separating combustion gases from water. The U.S. Department of Energy emphasizes lifetime energy costs when evaluating boilers, illustrating why the efficiency of that conversion process matters over decades of operation.
