Q&A / 

Heat pumps in certain weather conditions are extremely efficient. A heat pump works very efficiently when the outdoor temperature is in the 50 F range. They are air conditioners that run in reverse to bring heat from outdoors into your home.

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HVAC ductwork sizing is critical for proper heating and cooling in every room. Return air ducting is necessary in almost every room. Have to get the air back to the furnace. These ductwork tips will help balance your air conditioning and heating system.

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Sheryl lives in Charlotte, NC. She's got a unique issue with her heating system. Let her tell you all about it. "I have a very old generator which is not matched with the heat pump that was installed in my two-story town home in 2008. All works well with cooling and heating, but upstairs gets […]

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Michelle Hill is hot and bothered in her Crosby, Texas home. It does get very hot in Texas in the summer. Here's what she wrote to me: "If my house is a little over 1,700 sq ft including the attached garage, how big should the AC be?" Here's my answer: Michelle, it's not that easy. […]

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Larry Clifford had a humidifier install at his Richmond, KY home. He's now wondering if it was done wrong because it doesn't seem to be working right. Let Larry lay it on you: "I have a heat pump that came with the house. I am the original owner. A few years ago I had a HVAC […]

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Stacey lives in a nice house that was built the same year I was born! It's in Winnipeg, Manitoba Canada where it can get bitter cold. Let Stacey tell you what the problem is: "Hi. I'm in a 1,100 square foot one and one-half story house built in 1952. During the colder months I feel a draft […]

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Tim discusses new technology that alerts you when it's time to change your furnace or AC air filters. The notification can be via email. You can play the AsktheBuilder Filterscan Game. Just CLICK HERE to play. You could win prizes. (Prize deadline is November 17, 2014.)

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Quick Column Summary: Is dust in house coming from ductwork What is creating the dust Most dust gets in through air cracks near doors/windows Denis has a dusty house in California's Central Valley. He lives in Merced, CA. That's a clue by the way. Here's what Denis sent me: "Hey Tim, I have the dustiest […]

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Galvanized ducting buried under concrete slabs can collect water, debris or worse. There is an air duct cleaning system that not only cleans your ducts, but coats them with a waterproofing compound. This system uses your existing ductwork, so no need to install new ducts.

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If you have an existing house with air conditioning problems, there may be numerous things that are contributing to the problem. We have already discussed the sizing of the air conditioning units and importance of proper return air. But there are other HVAC problems that can cause poor cooling. One of these is static pressure.

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