Dirty Air Filter Can Reduce Airflow By 60%

It’s easy to forget about your furnace air filter. But imagine breathing through a dirty dust mask. Sooner or later it gets difficult to breathe and you overheat. That’s what your furnace-ac experiences.

Here are five signs of trouble.

furnace air filter
  1. Furnace or ac runs too long or even all the time.
  2. Poor air flow. You feel very little air blowing from the register.
  3. Ice forms on piping to your ac. Turn off ac, check filter, run fan a few hours until ice melts. Try ac and call for service.
  4. Furnace or ac stops for no reason.
  5. Home does not feel as comfortable as it should.

Effectiveness of various filter types in removing sub-micron particles from University of Illinois Extension.

  • Fiberglass up to 2%
  • Washable/reusable up to 6%
  • Thin pleated up to 11%
  • Deep pleated up to 25%
  • Pleated electrostatic up to 49%
  • Electronic up to 94%

Federal studies show regular HVAC maintenance helps

  • Lower energy use 10-30%
  • Reduce breakdowns by 70-75%
  • Cut 5-20% off heating repair cost
  • Extend equipment life up to 18%

If you notice a dirty furnace or dirty registers call PDM for a top-to-bottom HVAC safety check-up and get a no breakdown guarantee. If your furnace or air conditioning passes our inspection and breakdowns this season, we’ll apply the tune-up costs toward any repairs. PDM Plumbing, Heating and Cooling experts have been a trusted SW Chicago neighbor for 128 years.