Tuckers Air Conditioning, Heating & Plumbing Blog: Archive for December, 2014

The Composition of Snowflakes: Are No Two Alike?

Thursday, December 25th, 2014

“No two snowflakes are alike.”

This is a statement nearly every schoolchild has heard at least once, either while crafting unique snowflakes with a sheet of folded paper and some scissors or while learning a lesson on the science of snow. While even most scientists don’t quite understand what causes a snowflake to form such complex and beautiful columns and points and branches, one thing is for certain, the composition of snowflakes guarantees that no two will ever be identical.  However, it is possible for two snowflakes to appear to be nearly exactly alike.

A snowflake begins to form when a piece of dust catches water vapor out of the air. Water is created when two hydrogen molecules attach to an oxygen molecule. The two hydrogen molecules are angled from one another in such a way that they form a hexagonal shape when they come together during the freezing process; thus, a snowflake begins as a simple hexagonal shape or as layers of hexagons called diamond dust. The emergent properties that follow from the original hexagon are what differentiate one snowflake from another, as the humidity, the temperature in the air, and many other factors (some of which remain unclear to scientists) allow each snowflake to form in an entirely unique way with a seemingly endless variety of shapes.

However, in 1988, a scientist named Nancy Knight claimed to have located two that were the same while studying snowflakes as part of an atmospheric research project. And it appeared to be so; when put under a microscope, the emergent properties looked nearly identical. But while it is feasible that two snowflakes can appear to be exactly alike on the outside, they are never identical on an atomic level. Deuterium is an atom that appears attached to about one in every 3000 hydrogen molecules in the air. Because there are millions of atoms that make up a snowflake, the random assortment of deuterium in any two snowflakes—even in two that so very closely resemble one another—simply cannot be the same.

Here at Tuckers Air Conditioning, Heating & Plumbing, we’d like to remind you to grab a cup of cocoa and relax with your family this holiday, perhaps by crafting some unique snowflake creations of your own. We wish you a very happy holiday season, from our family to yours!

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How Does a Reversing Valve Work in a Heat Pump?

Wednesday, December 17th, 2014

Many times, customers will ask why a heat pump can provide both heating and cooling while an air conditioner can’t. There’s a simple answer to this: a component called a reversing valve; heat pumps have them and air conditioners don’t. It may seem a little crazy that this one component can make such a big difference, but understanding what the reversing valve does can help make it clear. First, let’s take a quick look at how a heat pump works.

How a Heat Pump Works

Heat pumps do not generate either heating or cooling; instead, they transfer heat from one location to another, with the help of refrigerant. During the winter months, heat pumps absorb the heat in the surrounding air, concentrate it, and distribute it to your home’s living spaces. In the summer months, heat pumps absorb the heat in your home and transfer it outside. However, it is the reversing valve that allows the heat pump to change from cooling to heating and back.

The Reversing Valve

The reversing valve is a medium-sized, cylindrical metal component with 3 smaller tube-like valves on one side and a single tube-like valve on the other; there is also a small electrical component called a solenoid on top of it. Inside the reversing valve is a sliding mechanism that moves back and forth, according to the mode the valve is in (heating or cooling). As the homeowner, all you have to do to change modes is press a button on your dual-mode thermostat. When the thermostat cues the heat pump to change modes, the solenoid gives the sliding mechanism a little push and the refrigerant inside the valve does the rest. This action, in which the directional flow of the refrigerant is changed, is what physically changes the mode of a heat pump and for your system.

“Stuck” Reversing Valve

One of the more common problems with the reversing valve is that it can get stuck in a mode or even between modes. When the valve is stuck, your heat pump can’t work properly and repair is required. If the reversing valve is stuck due to a faulty solenoid, the solenoid can be replaced; however, if there is a refrigerant leak or other issue, the reversing valve will need to be replaced.

Bi-annual maintenance helps keep your heat pump in North Potomac in great shape. If it’s been more than 6 months since your last heat pump maintenance appointment, or you are experiencing problems with your heat pump, call Tuckers Air Conditioning, Heating & Plumbing today.

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Why You Should Schedule Regular Drain Cleaning

Wednesday, December 10th, 2014

The drains in your home don’t seem to emit any foul odors, nor do you have to deal with the wastewater that moves down the pipes and into the sewer. So why should you bother with regular drain cleaning? Drains tend to accrue a lot of buildup over the years, but you may assume they’re built tough enough to handle it. However, an unexpected drain clog can leave you without any use of your sinks and fixtures, and possibly with some troublesome sewage backup in your home.

Many people don’t call a professional for drain services until nothing will move down the drains or when they notice backup in the home. But drain clogs can be detrimental to your home if sewage begins to accumulate and enter through the drains, causing a health hazard and some potential damage to your property.

Besides, drain cleaning is simply not a job that should be left to someone without any experience or without the right equipment. Home drain cleaning liquids that are available for purchase at hardware stores and grocery stores are toxic to humans and can cause eye or skin irritation and injury. They are also fairly ineffective at removing or preventing many types of blockage and may actually damage the pipes.  Professionals have the tools and equipment to take care of nearly any type of obstruction, including fats, oils, and grease that may solidify in the pipes and trap any debris that travels past.

Drain clogs rarely occur at a convenient time for you to schedule services, and you’ll be without vital water-using appliances while you wait for your repair technician to show up. That’s why it’s best to schedule drain cleaning annually, to remove any existing blockage and clear out the lining of the pipes so that drain clogs do not reoccur in the future.

When you schedule drain cleaning with Tuckers Air Conditioning, Heating & Plumbing, you’ll get the added benefit of video pipe inspection with your service. A plumber will use a thin fiber optic cable with a video camera at one end so that they can view a live feed and feel confident that the drains are clean, and can even inform you of any leaks in your plumbing. Give us a call today to learn more about the benefits of professional drain cleaning in Bethesda.

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Why You Shouldn’t Use Store Bought Drain Cleaners on Your Drains

Wednesday, December 3rd, 2014

Drain clogs are a nuisance, and the sooner you can remedy the situation, the better for you and your plumbing. But don’t let the need to remove the clog guide you toward an action that may cause more harm than good. What are we referring to? Using store-bought drain cleaners. Yes, drain cleaners can work in certain situations, but the damage the cleaner can cause can be more extensive than its ability to clear your drain. When you call Tuckers Air Conditioning, Heating & Plumbing for plumbing repair, you can rest assured that your plumbing issue will be resolved quickly, efficiently and correctly. Experiencing a plumbing problem? Call us today!

Just Say No to Store-Bought Drain Cleaners

So how can store-bought drain cleaners be a problem? Let’s take a look:

  • Clogs need to be near the drain opening – a store-bought drain cleaner is a liquid that dissipates as it makes its way down your drain; as such, its ability to have any effect on your clog will diminish the further is has to travel. Unfortunately, few clogs are located at the drain’s opening.
  • Effective on “soft” clogs – drain cleaner is mostly effective for clogs that are “soft”, which are items like food and paper. Tough hair clogs and mineral build-up will not be as affected by drain cleaner, and as such, won’t do very much.
  • Highly corrosive – just because drain cleaner is sold over-the-counter in stores doesn’t mean it doesn’t have harsh chemicals – it does. The combination of chemicals is highly corrosive, meaning they can eat away at your piping, particularly if it’s plastic.
  • Toxicity – the chemicals in drain cleaner can burn your skin, irritate your eyes and nose, and damage surrounding flooring and carpet should a spill occur.

Call for an Expert

The lure of a store-bought drain cleaner is simplicity, but the truth is, using these harsh chemicals can make things very complicated. If you have a clogged drain, don’t risk your existing plumbing work by using a drain cleaner; instead, call Tuckers Air Conditioning, Heating & Plumbing and schedule an appointment for professional drain cleaning services with one of our plumbing experts.

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