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Despite technology advances and higher efficiency ratings for condensing boilers, managers still need to ensure technicians have the training, time, and resources to maintain them properly.
"One of the things people underestimate is the new generation of high-efficiency boilers," McKeegan says. It is essential managers provide for equipment maintenance to ensure they deliver long-term performance, not just initial benefits.
"Combustion boilers on the fire side are dirty, so they require an absolute commitment to keeping them clean," he says.
Advances in controls technology are designed to help operators streamline their daily duties related to boiler operation and maintenance.
"The updated controls have made it much easier to extract information from the boilers and determine operating performance, as well as maintenance requirements, "Southwell says. "Many control designs now incorporate multiple functions into fewer devices, which simplify the control-system design and minimize the number of components that need to be supported."
Manufacturers point to several trends that are likely to play out in the next generation of boilers and water heaters. According to Southwell, managers will see:
Managers also will see boilers and water heaters that not only use less fuel to generate needed heat but that use less electricity to operate the system's pumps, motors, and variable-speed drives, Pierce says.
Finally, Pierce says, manufacturers are likely to respond to questions about fuel options by introducing more units that use multiple fuels, including natural gas, electricity, bio-fuels, diesel fuel, and biomass.
Says Pierce, "I think we're going to see a big influx in the next few years."
Condensing Boilers: Understanding Efficiency Ratings
Boiler Controls Monitor Heating-System Requirements
Boilers: Maintenance Impacts Energy Efficiency