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We want you to be an informed homebuyer, and each blog post is a question that we have answered for our friends and customers over the years. Hope they help you make a good choice for your next home.

How to Look

at a House

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    Because the air filter is usually placed just behind the return air register at the bottom of the cavity, everything that gets pulled through the tiny openings in the shaft ends up stuck to the evaporator coils in the air handler. This configuration is approved by the building code, so we don’t recommend repair, but it a less than ideal component of an HVAC system.

While we hope you find this series of articles about home inspection helpful, they should not be considered an alternative to an actual home inspection by a local inspector. Also, construction standards vary in different parts of the country and it is possible that important issues related to your area may not be covered here.
© McGarry and Madsen Inspection

More blog posts about heating and air conditioning:

  1. The coils on my heat pump are covered with ice on cold mornings. What’s wrong with it?

  2. When does the ban on R-22 air conditioning refrigerant take effect?

  3. Why is my air conditioner not cooling enough?

  4. What color should the flame be in a natural gas furnace?

  5. What is the SEER of my old air conditioner?

  6. What is the difference between the “ON” and “AUTO” settings on my thermostat?

  7. What is a “ton” of air conditioning?

  8. How can checking the fireplace damper reduce energy bills year-round?

  9. What is the best air conditioner for a mobile home?

  10. How do I find the right size air conditioner for my house?

  11. What is an HVAC system?

  12. What is the difference between the SEER and EER of an air conditioner?

  13. What does an ultraviolet air treatment system do?

  14. The coolant line to the outside unit of my air conditioner is frozen. What's wrong?

  15. What size air conditioner is right for my mobile home?

  16. What is the minimum SEER rating for a new air conditioner?

  17. What does the “AFUE” rating of a furnace mean?

  18. How much life is left in that air conditioner?

  19. Why is there mold around the air conditioning ducts?

  20. What is a geothermal heat pump?

  21. What is the difference between a heat pump and a cooling air conditioner?

  22. Is it alright to close the air conditioning vents in unused rooms?

  23. What is the right MERV number for my air conditioning filter?

  24. Should I move my air conditioner into the attic?

  25. What are the minimum requirements for bathroom ventilation?

  26. What is an air conditioning heat recovery system?

  27. When should I switch the thermostat to “EMERGENCY HEAT” for my heat pump air conditioner?

  28. Why does the air conditioner condensate drain line need a trap in it?

  29. What is the average lifespan of an air conditioner?

  30. Should I remove an old whole house fan or keep it?

  31. How can I find out the SEER of my air conditioner?

  32. Is it acceptable for an air conditioning condensate drain line to terminate under the house?

  33. How much will I save on my utility bill if I get a new higher SEER air conditioner?

  34. Will closing doors reduce my heating and cooling costs?

  35. Why is there a wall switch next to the furnace or indoor unit of the air conditioner in the garage?

  36. What are the most common problems with wall/window air conditioners?

  37. Which one is better for a home heating system: electric or natural gas?

  38. Why does an air conditioner condenser need to be level?

  39. How can I tell if an air conditioner uses R-22 or R-410A refrigerant?

  40. When is an auxiliary drain pan required under an air conditioner indoor unit (air handler)?

  41. What is a ductless mini-split air conditioner?

  42. What is a FanRecycler and AirCycler?

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