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Q. Our original structure was featured in the 1978 issue of Better Homes & Gardens. since then we have added a three-car garage and regular pitched roof. Needless to say, the electrical wiring is a mess. What’s the best way to centralize the wiring? - PATTI MCCAMMON OF NOEL, MISSOURI

A. The cleanest way would be to install a circuit breaker panel in the garage and feed the wiring from that point. Another option would be to lengthen the wires, allowing them to be rerouted and tucked away out of sight. Either option can be somewhat difficult and will lead to problems if not done correctly. Contact a qualified, licensed electrical contractor to discuss your options. - JIM FOLTZ, MR. ELECTRIC SENIOR SERVICE PROFESSIONAL OF WACO, TEXAS

Q. How do you know if your current A/C unit is the right size for your home?

A. There are a number of factors that need to be considered, such as “Why are you asking?” and “Are you experiencing a specific problem?” By answering a few not-too-technical questions, you can get a good idea. When we get past all the technical stuff, the bottom line is: Are you comfortable? Consider the following questions:

Does your unit run continuously on an average day while you still feel uncomfortable?

Does your unit turn on and off repeatedly on an average day while you still feel uncomfortable (cool, but sticky and humid)?

If you answered no to both questions (and you’re comfortable), then your unit is probably the right size. A properly sized unit will run almost continuously on a very hot day. Newer multistage A/Cs allow the unit to run longer on average days, which provides much better humidity control and air filtration and enhances equipment lifetime. If you still have a concern about your unit, please give us a call and allow one of our professionals to assess your system and provide a complete report for your consideration. - KEVIN LEWIS, AIRE SERV OF NILES, MICHIGAN

Q. Do you do free estimates? What is included in that? - SONYA HOLLINGSWORTH OF MOORESVILLE, INDIANA

A.DreamMaker Bath & Kitchen provides an initial design consultation at no charge.

Q.How do I choose a water softener or conditioner for my home? - RUSSELL MEHNERT OF LEXINGTON, KENTUCKY

A. Your water should be tested to determine the “grains of hardness,” or how much mineral content your water has. This number is used to determine which softener is required. Most typical is 30- and 40-grain models. When being tested, get a complete analysis, as you may also need some additional filtering to improve the quality of the water. - KEITH GLASS, MR. ROOTER PLUMBING OF WACO, TEXAS

Q.Why is a house fitted with 220 volts versus 110 volts? And when does one consider upgrading to 220? - KIM COVEY OF LEO, MASSACHUSETTS

A. Heavy appliance and motor loads work more efficiently and economically with 220-volt power. This would include A/C units, heat pumps, electric stoves, hot water heaters, electric dryers, electric heaters, and most air handlers. If you are considering adding any of these items to your home, you may be required to update your system to accommodate them. If your home has only 110 volts at the main service, and the interior wiring has not been updated, chances are the wire insulation is outdated and no longer an approved type. For these reasons, it is suggested that you contact a qualified licensed electrical contractor to assess your situation. - JIM FOLTZ, MR. ELECTRIC SENIOR SERVICE PROFESSIONAL OF WACO, TEXAS