Hearth products are gas fireplaces and refer to all vented or ventless products including space heating hearth products, decorative products, gas logs, gas stoves, and outdoor hearth products
In January, 2015, DOE proposed standards which would require manufacturers to eliminate the continuously burning pilot light. Many products already use electronic ignition—similar to what is used on gas ranges and ovens—eliminating the need for wasteful pilot lights. DOE estimates that the proposed standards would net the average consumer $165 in savings over the life of the product. On a national level, hearth products meeting the new standards sold over 30 years would reduce natural gas consumption by about 7 billion therms, which is equivalent to the annual natural gas consumption of 10 million US households, and net consumers up to $3 billion in savings. Over the same period, the standards would reduce CO2 emissions by 37 million metric tons, an amount equal to the annual emissions of more than 3 million US homes. A final rule is expected in 2016 with an expected effective date five years later.
Standing pilot lights can account for about 40% of the total annual energy consumed.