A long list of defects can cause uneven heating or cooling in any home. Problems such as a dirty filter, leaking ducts, loose duct connection at registers (vents), closed registers, or a poorly designed system can all cause an unbalanced air delivery. Rooms at the very end of a long duct run can become starved for air.
Also, any room that does not have a return air register, grille, or opening for air to return back to the air handler ends up becoming pressurized, causing reduced air flow and inadequate heating or cooling. To read about solving all these problems, see our blog post “Why are some rooms colder or warmer than others?"
But, if you are a mobile home owner that has floor registers, and determine that the problem is lack of air flow that is not easily solved, there is a cheap-and-dirty solution: a duct booster, shown above. It sits over the floor duct and activates a fan when it senses air movement below it, boosting the air flow from the register significantly. The sensor also turns off the fan when the air flow at the duct stops. It is good for up to a 6” by 12” duct, plugs into an adjacent wall receptacle, and costs under $50 at amazon.com. Search the site for “heating & air conditioning booster” to find one.
Also see Frequently Asked Questions (FAQ) about Air Conditioning Troubleshooting and Why does my home still feel humid and muggy with the air conditioner on?
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Here’s links to a collection of our blog posts about MOBILE/MANUFACTURED HOMES:
• Where can I file a complaint if I have problems with my new or used manufactured/mobile home in Florida?
• What are the most common defects in mobile/manufactured home foundation piers?
• How do I determine the age of a very old mobile home?
• What is a "HUD label verification letter" for a mobile/manufactured home?
• When did a ground cover vapor barrier (plastic sheet) become required under a mobile/manufactured home?
• Is it safe to go under a mobile home?
• Are older mobile homes unsafe?
• What do I need to know about buying a foreclosed mobile home?
• Does it make sense to buy an older mobile home and remodel it?
• Where do I find the vehicle identification number (VIN) on a mobile home?
• How do I find out how old a mobile home is and who manufactured it?
• What is the right price for a used mobile home?
• How energy efficient is a mobile home?
• When were the first double-wide mobile homes manufactured?
• How do I upgrade my old (pre-1976) mobile home to meet HUD standards?
• What size air conditioner is right for my mobile home?
• Can you move an older mobile home in Florida?
• What does the HUD tag look like and where do I find it on a mobile home?
• Can you put a zone 1 mobile home in Florida?
• How can I remove water under my mobile home?
• What's the differences between a trailer, a mobile home, a manufactured home, and a modular home?
• What is a D-sticker mobile home?
• What are the tie-down requirements for a mobile home?
• How fireproof is a mobile home?
• Can I install a mobile home myself?
• What is a Park Model mobile home?
• Does an addition to a mobile home have to comply with the HUD Code?
• What walls can I remove in a mobile home?
• What can I do to prevent dampness and mold in my mobile home?
• How can I tell if a mobile home is well constructed?
• How can I tell the difference between a manufactured home and a modular home?
Visit our MOBILE/MANUFACTURED HOMES page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.