South Hills Geothermal Tip: Problems Caused by Poor Water Quality in Open Loop Systems

March 14th, 2012

As geothermal heating systems go, an open loop configuration can be an excellent choice in South Hills, provided the local geography supports it. Open loop systems work very effectively and efficiently because the deep water is held at an almost constant temperature year round. This property makes it a very good source of heat for the geothermal system.

However, an important factor to consider before choosing an open loop system is the quality of the water coming from the source. Although you won’t drink the water, the quality still matters a great deal, as poor water quality can cause serious problems in your geothermal system.

Let’s take a look at some common water quality problems and the damage they can potentially do to an open loop geothermal system.

 Mineral Deposits

If the water is filled with minerals — frequently called “hard water” — those minerals can be deposited within the geothermal coils. As they build up on the walls over time, they can slow the flow of the water or even clog it completely.

Hard water does not necessarily preclude the use of an open loop system. It just may call for extra maintenance, such as periodically flushing the system with a mild acid solution to remove mineral build-up.

 Impurities

Impurities in water, especially metals like iron, can also cause clogs. Most frequently this occurs in the return well of the geothermal system. Again, these impurities do not necessarily mean an open loop system can’t work for you, but you should consult with the contractor prior to installation for solutions to this problem.

 Particulate and Organic Matter

If you plan to use surface water such as a pond or spring as the source for your open loop system, make sure to test the water composition thoroughly. An excess of sediment or organic matter can clog up your South Hills geothermal system very quickly.

Ideally, these are all situations that your contractor will anticipate and discuss with you ahead of time, so that your open loop system can be installed in such a way as to preempt any problems with water quality. If you have any questions about how a geothermal system will work for your home, give Boehmer Heating & Cooling  a call today!

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Mt Lebanon Heating Installation Question: What Exactly Are High Efficiency Boilers?

March 7th, 2012

You have already read plenty about how energy costs are rising. You know plenty well that heating your Mt Lebanon home is a substantial expense, and that the cost of running a boiler is constantly on the rise.

But as technology has gotten better, so have boilers become more efficient at providing heat. It stands to reason that a more efficient boiler is one that costs less to run…but what does “efficient” really mean in the context of boilers? What makes a boiler “high efficiency”?

 What Is a High Efficiency Boiler?

All boilers are rated according to a standardized system of rating efficiency, called the Annual Fuel Utilization Efficiency (AFUE). Essentially, this rating tells you how much heat energy is produced by a boiler compared to how much energy it draws. The higher a boiler’s AFUE rating, the more efficient it is.

For a boiler to be called high efficiency, it must carry an AFUE of at least 90%. For basis of comparison, older systems carry an AFUE of about 70%, while mid-efficiency systems run at about 82%.

In addition, a high efficiency system has a second heat exchanger for capturing and condensing flue gases, as well as a closed combustion system.

These three things — an AFUE of 90% or above, condensing flue gases and closed combustion – define a high efficiency boiler.

The initial investment in a high efficiency boiler can be costly, but the savings over time in heating bills make it well worth the expense.

If you would like a high efficiency boiler installed in your Mt Lebanon home, give Boehmer Heating & Cooling a call today!

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Things to Try Before Calling a Pittsburgh HVAC Professional

February 29th, 2012

Your Pittsburgh home’s HVAC system can seem like very daunting and complex equipment, so you might not want to work on by yourself. While it’s true that HVAC equipment can be complicated and needs the attention of a skilled professional more often than most homeowners would like, there are still ways for the DIY-ers out there to work on their HVAC systems before resorting to calling in the pros.

There are some common culprits when it comes to most HVAC problems and malfunctions, so if something goes awry in the operation of your equipment, there are some basic measures you can try to get things back on track.

If any of these work, you have saved the cost of the repair and get the satisfaction of a job well done:

  • Turn all switches – indoors and outdoors – off, then back on again. Do the same thing with the pertinent circuit breakers. Sometimes the system just needs a hard reset to jolt it back to life.
  • Check your thermostat. Is the temperature set where it is supposed to be? If it is too high or too low, the HVAC system will stay on too long or shut itself off too quickly.
  • Make sure your system is in the right mode for the season. It may sound obvious, but for whatever reason, sometimes things wind up in heating mode during cooling season.
  • Check your filters. Clean and/or replace them as necessary. (You do this once a month anyway, right?)
  • Inspect the vents around your home to see if any are blocked, clogged or excessively dirty. Vents that don’t properly circulate the air can cause all kinds of problems within an HVAC system.

This is by no means a comprehensive list of all the things that can go wrong with an HVAC system, but it is at least the usual suspects for the most simple and common problems that many Pittsburgh homeowners encounter. After trying these out, if you are still experiencing difficulties, then it is probably time to call Boehmer Heating & Cooling to have a look at the problem.

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West Mifflin Heating Tip: Simple Steps to Prevent Heat Loss

February 24th, 2012

There are two fundamental ways to make your West Mifflin house warmer. One is to generate heat, which is the job of your furnace or boiler. The second is to keep the warm air in — and thereby keep cold air out — which is the job of your system of insulation.

The idea that the physical structure of a home can be a component of the HVAC system is one that is often overlooked, but when you think about it, it makes sense. The insulation, windows, doors and building materials that comprise your home are designed to keep the place warm against the cold and vice versa.

So, when bolstering your HVAC system to promote efficient heating, it is important to also consider heat loss and how to prevent it. This is a process that can get out of hand if you go overboard, so it is important to prioritize. Let’s look at the top 3 places to start when trying to prevent heat loss.

  1. Doors and Windows:  If you have older doors and windows, they could be a source of heat loss in your house, even if they are always closed. Replacing your windows and door with Energy Star rated ones will make sure that you are not losing heat to the outside AND still getting all the heat energy from the sun. Installing storm windows or putting up heavy curtains in winter can also help cut down on your heat loss.
  1. Seal off drafts. If any opening to your house, such as windows and doors, is improperly sealed, improperly installed or if the surrounding construction is deteriorating, you can lose a lot of heat. Check any drafts that you notice that might indicate a problem, and also if your vents and air ducts are leaky.
  1. Start at the top. If you want to go farther in sealing your house up against the cold, it is time to work on the insulation. When installing new insulation, remember that heat rises, so you get the most bang for your buck by starting at the top. If you only have the budget or time to insulate one space, make it the attic. You can work down from there.

These areas should be your top three priorities on your mission to prevent heat loss in your West Mifflin home. If you start here, you will get the best gains with the least effort. For more information on how to improve your home’s heating, give Boehmer Heating & Cooling a call today!

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Cranberry Geothermal Installation Question: How Effective Is Geothermal Heating?

February 22nd, 2012

Geothermal heating is an efficient way to use the Earth’s natural resources to heat a building’s interior in Cranberry. But is it an effective way?

Consider the cost of geothermal heating. Once you get past the initial installation costs of a geothermal heating system, which are higher than other conventional heating systems, its operating costs are much lower because of its use of a natural, renewable heat source – the Earth. If you plan to stay in your home for many years, a geothermal heating system will likely pay for itself because according to International Ground Source Heat Pump Association, geothermal operating efficiencies are 50-70% higher than other heating systems, which represents a substantial lowering of energy costs.

And according to a leading electric utility company, the cost of electricity for operating a geothermal heat pump is lower than any other heating system which includes natural gas, propane, and oil.

Beyond lower energy costs, geothermal heating leaves a smaller carbon footprint than other heating systems. According to the U.S. Environmental Protection Agency, carbon dioxide (CO2) emissions from the average U.S. home is 17%, most of which comes from burning fossil fuels for electricity. Geothermal uses natural heat from the ground and therefore uses 30-60% less energy than more conventional heating and cooling systems. Using less energy equals less carbon dioxide production.

A geothermal heating system is only as effective as the equipment used to deliver it throughout the building. The most common delivery method is through a ground source heat pump. This pump pulls the heat from the earth and distributes it.

The components of a geothermal system also include a compressor, air handling unit, and duct system. When all are installed and maintained correctly, a geothermal heating system will be just as effective in heating a building’s interior as any other heating system. Call Boehmer Heating & Cooling if you have any questions about installation or service for a  geothermal heating system.

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Happy President’s Day from Your Greater Pittsburgh Area HVAC Contractor!

February 20th, 2012

Everyone at Boehmer Heating & Cooling Company wishes you a very happy President’s Day! Fun fact: though it is commonly referred to as “President’s Day” this holiday is still officially called “Washington’s Birthday.” There was an attempt to change the name of the holiday in 1968, but the proposal failed.  It is traditional to celebrate this holiday with cherries, in honor of George Washington.  While the name hasn’t officially changed, today has come to be about all of our nation’s presidents, and a celebration of all that they accomplished. In honor of this holiday, here are some fun trivia questions to stump your friends and family:

  • When was Washington’s Birthday first celebrated?
    • During his presidency his birthday was celebrated every year. However, Washington’s Birthday officially became a holiday in 1885.
  • Who was the oldest president elected?
    • Ronald Regan (69)
  • Who was the youngest president elected?
    • John F. Kennedy (43)
  • Who was the tallest president?
    • Abraham Lincoln (6’4’’)
  • Who was the shortest president?
    • James Madison (5’4’’)
  • Which state is the birthplace of the most presidents?
    • Virginia (8 total; George Washington, Thomas Jefferson, James Madison, James Monroe, William Henry Harrison, John Tyler, Zachary Taylor, and Woodrow Wilson)
  • How many states are named after a president?
    • One (Washington, DC)

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Bridgeville Heating Repair Tip: Furnace Control Boards

February 17th, 2012

One way to be a truly responsible Bridgeville homeowner is to familiarize yourself with the major systems and appliances in your home. By having at least some understanding of how, say, your refrigerator or toilet work, you gain understanding of how to use them efficiently and detect when something goes wrong.

The same is true of your furnace, which can appear to be a complicated piece of machinery. In order to help you get acquainted with your furnace, we will discuss one of its main control components, the furnace control board.

As the name suggests, furnace control boards are responsible for governing the operation of the furnace. At a minimum, a simple furnace control will control the furnace ignitor (e.g., a spark generator or glow coil), the gas valve and the furnace thermocouple, also called a flame sensor.

More complex furnace control boards will also have control over the blowers and/or the built-in diagnostic system.

To simplify things, you can think of the furnace control board as being a driver and the furnace as its car. Just as the driver oversees all the functions and operation of the car from ignition to shutting off the engine, likewise does the control board for the furnace.

A typical operation sequence for a furnace control board goes something like this:

  1. The control board receives a signal from the thermostat that the temperature is too low.
  2. It starts the ignition system, whether that be a spark generator, glow coil or pilot light.
  3. Once the ignitor is hot, the furnace control board initiates the flow of gas through the burners, where it is ignited.
  4. The control board keeps the furnace running until it is signaled by the thermostat that the temperature is now high enough, or until it detects something is wrong.

(An example of a malfunction where the control board would get involved is a thermocouple that is not detecting enough heat. In this case, the control board would shut off the gas flow to prevent a leak into the home.)

Furnace control boards are an essential part of your home’s HVAC system. And now, as a responsible homeowner, you know just how important. If suspect you have a problem with your furnace, give Boehmer Heating & Cooling a call!

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Happy Valentine’s Day from Your Greater Pittsburgh Area Heating and Air Conditioning Contractor

February 14th, 2012

Everyone at Boehmer Heating & Cooling wishes you a Happy Valentine’s Day! Valentine’s Day is all about showing your appreciation for your loved ones. Whether it is your significant other, your family, or your friends, it is a great time to let them know how special they are to you. A handmade card, a bouquet of flowers, or even a simple phone call can make someone’s whole day.

If you are thinking about a big gift for your family, an upgrade to your HVAC system might not be the most romantic gift, but it is a gift that keeps on giving! A new air filtration system will keep you indoor air clean, and a new furnace or boiler will make your home more comfortable and lower your utility bills. Making your home cozier is something your whole family will appreciate!

Call Boehmer Heating & Cooling to learn more about how some HVAC system upgrades can improve the comfort level in your home. And to make your Valentine’s Day a little sweeter, here is a recipe for White Chocolate Raspberry Cheesecake:

“Raspberry sauce is swirled into the batter of a creamy white chocolate cheesecake. Garnish with white chocolate curls if desired.”

INGREDIENTS:

1 cup chocolate cookie crumbs

3 tablespoons white sugar

1/4 cup butter, melted

1 (10 ounce) package frozen raspberries

2 tablespoons white sugar

2 teaspoons cornstarch

1/2 cup water

2 cups white chocolate chips

1/2 cup half-and-half cream

3 (8 ounce) packages cream cheese,

softened

1/2 cup white sugar

3 eggs

1 teaspoon vanilla extract

DIRECTIONS:

  1. In a medium bowl, mix together cookie crumbs, 3 tablespoons sugar, and melted butter. Press mixture into the bottom of a 9 inch springform pan.
  2. In a saucepan, combine raspberries, 2 tablespoons sugar, cornstarch, and water. Bring to boil, and continue boiling 5 minutes, or until sauce is thick. Strain sauce through a mesh strainer to remove seeds.
  3. Preheat oven to 325 degrees F (165 degrees C). In a metal bowl over a pan of simmering water, melt white chocolate chips with half-and-half, stirring occasionally until smooth.
  4. In a large bowl, mix together cream cheese and 1/2 cup sugar until smooth. Beat in eggs one at a time. Blend in vanilla and melted white chocolate. Pour half of batter over crust. Spoon 3 tablespoons raspberry sauce over batter. Pour remaining cheesecake batter into pan, and again spoon 3 tablespoons raspberry sauce over the top. Swirl batter with the tip of a knife to create a marbled effect.
  5. Bake for 55 to 60 minutes, or until filling is set. Cool, cover with plastic wrap, and refrigerate for 8 hours before removing from pan. Serve with remaining raspberry sauce.

For more details, visit allrecipes.com.

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O’Hara Heating Repair Question: Why Is My Air Handler Squealing?

February 13th, 2012

Unusual noises coming from your O’Hara home’s HVAC system never a good thing; they make you worry that something is wrong.

It’s true that an unusual noise does often mean that something needs to be fixed; however, a noise emanating from your HVAC system does not necessarily mean a major repair. You should always have a technician check out if you suspect a problem with your system, but not all problems are going to be expensive to fix.

One common noise that homeowners notice and complain about is a squealing noise originating in the air handler. Usually, this noise is coming from the fan belt that connects the blower fan and the motor. Over time, the belt can stretch out and become worn or misaligned, which makes it slip and generate that aggravating squealing noise.

So, while the squealing can be annoying and unpleasant, a slipping belt is by no means major. A belt is an inexpensive part and a O’Hara technician can install it in just a matter of minutes.

As long as the noise is a squealing and not a grinding, this simple fix wil often take care of the problem. If you hear a grinding noise, however, immediately shut the unit down and call Boehmer Heating & Cooling Company. This may mean that your motor bearings are worn out and need to be replaced ASAP before further damage is inflicted on the motor itself.

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Oakdale Heating Maintenance Question: What Are the Different Types of Furnace Maintenance?

February 10th, 2012

Everyone in Oakdale knows that there are different types of maintenance tasks associated with keeping your automobile in tip top shape. Did you also know there are tasks that can be performed at various intervals to keep your home’s furnace in peak running condition?

For example, the most frequent maintenance task is checking the filters in your air handling unit. These are often called furnace filters but in reality, they serve the same function to filter air to and from your air conditioner, too. It might be easiest to just call them air filters. The frequency of replacing or cleaning air filters usually depends on the type of indoor environment you live in – like humidity levels, number of household pets or occupants, etc. In general, filter maintenance should occur every one to three months.

A less frequent maintenance task is cleaning the moving parts of the internal mechanism. You may only need to have your furnace cleaned every six months to a year, depending on its use. In some cases you can perform the cleaning yourself or it is included in an annual cleaning as part of a service agreement with a qualified heating and cooling contractor. A furnace can typically run at peak efficiency when it is cleaned on an annual basis.

You can also make it a regular habit of checking the motor bearings and fan belt, too. You can lubricate the bearings and tighten or replace the fan belt on a same schedule as cleaning the moving parts.

Other maintenance tasks related to your furnace, which may require longer interval times include ventilation system cleaning, or more commonly known as duct cleaning. Some homes don’t require this type of maintenance more than every five to ten years – perhaps longer. Unless there are unusually high levels of dust, allergens, or contaminants in the air, most ventilation systems can remain clean for several years.

Of course, you can turn all of your maintenance tasks over to a heating and cooling contractor like  Boehmer Heating & Cooling Company – and have the most peace of mind.

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