The EPA certification process requires manufacturers to verify that each of their
wood stove model lines meet a specific particulate emission limit by undergoing
emission testing at an EPA accredited laboratory.

Wood stove manufacturers must:
  • Maintain a quality assurance program for production-line wood heaters
  • Affix a permanent label to each wood heater that meets the applicable
    emission standard
  • Provide consumers with temporary label that lists:

  • The emission rate (using an EPA-approved test method),
  • The heating range of the wood heater (for correctly sizing the wood
    heater) and
  • Overall efficiency

Wood Heater Regulations
The wood heater regulations require wood stove manufacturers to undergo
emissions testing at an EPA-accredited laboratory to certify that each wood stove
model line complies with the particulate emission limit of
7.5 g/hr for non catalytic
wood stoves
and 4.1 g/hr for catalytic wood stoves.

The rule also requires manufacturers to conduct a quality assurance program for
production-line wood heaters and to certify by a permanent label that each wood
heater meets the applicable emission standard. A temporary label is also required
for use by the consumer, that specifies the emission rate, the heating range of the
wood heater and overall efficiency.

Applicability
Wood Stoves with a firebox volume of less than 20 cubic feet, an air to fuel ratio of
less than 35 to 1, a burn rate of less than 5 kg/hr and a total weight of less than
800 kg are subject to the EPA wood stove regulations.
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EPA Certified Wood Stoves
The EPA (Environmental
Protection Agency) has
regulated wood heater
particulate emissions since
1988.

Wood stove model lines that
are
in compliance with the
rules are referred to as
EPA-certified wood stoves.

The EPA certification process
requires manufacturers to
verify that each of their wood
stove model lines meet a
specific particulate emission
limit by undergoing testing at
an EPA accredited laboratory.