The US Energy Department wants to use its own furnace efficiency test, not the industry's

The US Energy Department is pushing back against an industry-backed test for commercial furnace efficiency. It says the industry's test does not meet legal requirements. This means the Department wants to use its own, stricter test to measure how much energy these furnaces use.

For years, industry groups have worked to shape the rules that affect their products. This move shows the Energy Department is willing to fight for its own standards, even when challenged in court. It could mean that new commercial furnaces will have to meet higher energy efficiency standards than manufacturers prefer, which would increase their cost. This is a small but clear example of a government agency asserting its authority over industry-set norms.