Why is the term “boiler” considered a misnomer in a hydronic heating system?, The boiler does not contain water, The water usually does not actually boil, The boiler uses only electricity, The fluid is not circulated, What happens to the heated fluid in a hydronic heating system?, It remains inside the boiler, It is released into the atmosphere, It circulates throughout the home through radiators or heaters, It is converted into fuel, Why is natural gas often the usual choice in built-up areas?, It is easier to store than water, ) It is the most economical fuel where piped gas is available, It does not require a heating system, It produces steam immediately, Which statement best describes the operation of a hydronic boiler?, It heats water and circulates it through the heating system, It cools water and sends it through pipes, It heats air and releases it outside, It burns water to produce heat, What is the main difference between an electric steam boiler and a fuel-burning boiler?, An electric boiler uses heating elements instead of combustion, An electric boiler cannot heat water, A fuel-burning boiler uses only electricity, An electric boiler does not contain fluid, What can be concluded about the heat source of a hydronic boiler?, Only natural gas can be used, Only electricity can be used, Different fuels can provide the necessary heat, The boiler produces heat without a source

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