More blog posts about heating and air conditioning:

  1. How can I find out the size of my air conditioner?

  2. How can I find out the age of my air conditioner or furnace?

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

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

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

  6. Why are some rooms colder or warmer than others?

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

  8. What is an HVAC system?

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

  10. What does “AUX HEAT” and “EM HEAT” mean on my thermostat?

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

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

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

  14. What does the MERV rating number on an air conditioner filter mean?

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

  16. What is an air conditioning heat recovery system?

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

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

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

  20. What is a jump duct?

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

  22. Should I have a return air vent in the master bedroom?

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

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

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

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

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

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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.

   A UV air treatment system, in conjunction with an air filtration media, can be helpful for people with allergies or a compromised immune system and, when the evaporator coil area is irradiated, it can also reduce the musty smell emanating from a system with mold growth on wet surfaces by killing the mold.

   UV air treatment devices come in many shapes and sizes, and the Honeywell unit is just one example. But, if you see a small  to medium-size box stuck on the side of a main supply or return duct near an air handler and it has the words “ultraviolet” on it along with a warning about not directly viewing the light, then it is likely a UV air treatment 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.
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