NEW 2/5/15: On February 3, 2015, the EPA updated its clean air standards for OHH units. The phase in to meet stronger emission limits is effective in 2020. Read more by clicking on this link:
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List of EPA Certified Hydronic Heaters click here!
LaPorte County Ordinance 2007-10-B
Hydronic Heater Spec's
Hydronic Heater Inspections