Emission standards for wood heaters in the US
The US Environmental Protection Agency (EPA) has issued updated air pollutant emission standards for woodstoves and set the first-ever federal standards for hydronic heaters, wood-fired forced air furnaces and pellet stoves. The rule applies only to new appliances and will be phased in over a five-year period, giving manufacturers time to adapt their product lines to develop the best next-generation models to meet these new standards.
Emissions from new models will be reduced by roughly two-thirds, improving air quality and providing US$ 3.4–7.6 billion in public health benefits. This means that every dollar spent to bring cleaner heaters to market, will bring US$ 74–165 in health benefits. Consumers purchasing new models will also benefit from efficiency improvements, which means they will use less wood to heat their homes.
Source: US EPA press release, 4 February 2015