EP Sales, Inc. was started in 1998 in Bloomington, MN. The original business plan evolved around an increasing need for ventilation solutions that started in the residential housing market back in the 1980’s. The introduction of vapor barriers and higher R-values in exterior walls in new construction homes significantly reduced energy consumption and our country’s insatiable demand and reliance on foreign oil. Unfortunately, these changes in construction practices caused repercussions which led to serious indoor air quality (IAQ) issues in new construction homes. Eventually, building codes evolved and ventilation requirements were adopted to address these IAQ issues. The owners, Dave Ponschok and Bob Eddy, saw an opportunity for a whole-house ventilation product called an air exchanger or HRV.That first product line soon grew to include an expanded offering of other HVAC products which today also includes hydronics heating products and accessories.