Posts Tagged ‘Mayfield Village’

Bainbridge Geothermal Installation Question: How Effective Is Geothermal Heating?

Monday, January 30th, 2012

Geothermal heating is an efficient way to use the Earth’s natural resources to heat a building’s interior in Bainbridge. 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. Just be sure you hire a qualified Bainbridge heating contractor to install and service your geothermal heating system.

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Mayfield Village Heating Guide: Geothermal Myths

Wednesday, January 11th, 2012

As with any misunderstood technology, there are a lot of myths and misconceptions concerning geothermal heat pumps and how well they work. While these types of systems certainly have their limitations, the same is true of just about any type of heating and cooling system you could have installed in your Mayfield Village home. But if you are really trying to evaluate whether or not a geothermal heating system is right for your home, you need to know exactly what is true about these systems and what is just not true.

For instance, there is a widely held belief that geothermal energy is not a viable heating option in areas with harsh winters. The fact is, though, that even when the air temperature outside is below freezing, the temperature several feet below ground can be as high as 55°F.

With a ground temperature like that, a geothermal heat pump will have no trouble extracting enough heat to keep your home comfortable even when it is well below freezing outside. And even when the ground freezes, the frost usually only extends three or four feet below the surface. Since the pipes for your geothermal heat pump will be at least four feet down, the frost should not affect them at all.

Also, it is common for people to assume that geothermal heat pumps will always need to have a regular heating system in place to serve as a backup. In fact, a geothermal heat pump is quite capable of providing consistent and adequate heating for your entire house as long as it is properly sized and installed. Make sure you are dealing with an experienced and qualified contractor and you will have no problems along these lines.

There are also plenty of myths floating around out there that geothermal heat pumps are just too expensive to make sense as a home heating solution. The truth is that geothermal heating costs almost nothing to operate.

While it is true the geothermal systems are quite a bit more expensive to install than many of the other options, alternative heating systems will still cost a significant amount to install and you will also have to pay much more to operate them on a regular basis. With a geothermal heating system, you pay quite a bit up front, but it is a one-time cost and there will be minimal monthly heating bills after that.

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A Question from Kirtland Hills: Why Does My Furnace’s Pilot Light Keep Going Off?

Monday, December 5th, 2011

If you have an older furnace with a gas pilot light and it keeps going out, heating your Kirtland Hills home can become a frustrating process. Not only are you forced to trudge downstairs to light it every time you need heat, but you’re probably starting to worry that there is something wrong – either with your furnace or with your gas supply. Here are some possible reasons for your pilot light shutting off and what you can do about them.

  • Thermocouple – The thermocouple is used to generate electricity from the gas being burned by the pilot light to power the sensor that keeps the pilot light running. So, if the thermocouple goes bad or gets blocked in some way, the sensor won’t work properly and your pilot light won’t remain lit. Even a small problem with the thermocouple can lead to the valve closing and the pilot light going out.
  • Gas Pressure – If the gas pressure going to your furnace is too low, due to a leak, pipe problem or another appliance, the pilot light may not have enough gas to stay lit. While it is possible that the problem is not related to gas pressure, anything that affects the flow of gas into your home should be inspected by a professional. If you smell gas, leave the house and call your gas company immediately.
  • Mercury Sensor – The sensor in your pilot light that maintains the flow of gas to keep it lit can go bad. Keep in mind that these sensors almost always used to contain mercury (and often still do), so you should be careful with them. It’s best to call a professional who can replace and dispose of it properly.
  • Dirty Burners – Excess dust, lint, rust or sulfur build up can result in blockage of the burner holes. When this happens, gas will flood into the chamber but not light right away. When it does finally light, it will create a small boom or banging sound that will often put out the pilot light. Not only is this inconvenient, it is very dangerous. Fortunately, it can be avoided with annual cleanings of your furnace.

The best way to keep your pilot light lit at all times is to have someone inspect it once a year. If something happens in between, you can usually rule out cleanliness issues and call in a professional to check the thermocouple and sensor.

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History of Geothermal Energy: Some Information From Middlefield

Friday, October 7th, 2011

Geothermal energy is nothing new – it just gets more ink because of its increasing use to naturally heat and cool buildings, leaving a smaller carbon footprint and providing for an efficient, more cost-saving method to achieve indoor comfort which you can use almost everywhere, including Middlefield.

History shows that geothermal energy dates back over 10,000 years when American-Paleo Indians used hot springs for bathing and heating, possibly even as a source for healing. And geothermal energy is not just a North American “thing” either. The oldest known hot springs spa was built in the Qin dynasty in China in the 3rd century B.C.

Romans used the water from hot springs for their public baths. Geothermal water was also used by the Romans for treating skin and eye diseases. Minerals found in hot springs water has been long believed to have healing qualities. Geothermal water was also used to heat the buildings in Pompeii. Subsequently, building heat was obtained from under floor systems.

History notes that France is home to the world’s oldest known geothermal district heating system. The system in Chaudes-Aigues has been in use since about the 14th century. And starting in 1960, France began using geothermal heating for homes in other areas. Up to 200,000 homes in France are heated by geothermal means.

History also shows geothermal energy use during the late 18th century near Pisa, Italy. Geothermal energy had been used to extract boric acid from the Larderello Fields through the use of steam. In 1904 at Lardello Fields, steam was successfully used to generate power for the first time. At the time, geothermal energy was seen as the power of the future.

In the U.S. in 1892, the first district heating system in Boise, Idaho was powered directly by geothermal energy, and was soon copied in Klamath Falls, Oregon in 1900, where geothermal water was pumped under sidewalks and roads to help prevent freezing and ice build up. In New Mexico rows of pipe were placed underground to keep soil warmer for agricultural purposes.

A deep geothermal well was used to heat greenhouses in Boise in 1926.

For the residential market, an inventor built a “downhole heat exchanger” in 1930 to heat his house. The heat pump, which was invented in 1852, was patented to draw heat from the ground in 1912. However, it was not until the 1940s that the geothermal heat pump was successfully launched. Records show that the first commercial heat pump was put into use in Portland, Oregon in 1946. The first residential open loop system was installed in 1948.

In the 1960′s, the first large scale industrial geothermal energy power plant was constructed, producing 11 megawatts of geothermal electricity. From the 1960′s to the present day organizations and governing bodies have been set up to manage, research, and develop new and improved geothermal energy sites and technologies.

Today, there are many geothermal power plants in working order in the U.S. and across the globe.

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Green Thinking for Green Thinkers

Wednesday, July 27th, 2011

There are a lot of media stories about exciting new green buildings: LEED-certified buildings, net-zero buildings, buildings made out of recycled shipping containers, homes in New Urbanist communities, even “ultra-small” homes. But a new home can be pricey. Fortunately, though, all these innovative green ideas can be applied where you live right now. In fact, going green in your existing home might even be better for the environment than building a brand-new home.

If you wish your home could be LEED-accredited, focus on energy conservation and indoor air quality in your existing home. Upgrade to a high-efficiency furnace and air conditioner and consider adding central air filtration to your heating and cooling system. Install Energy Star appliances and WaterSense plumbing fixtures. For remodeling projects, use VOC-free paints and natural materials.

If you wish you had a “net-zero” home, consider geothermal – and insulate. Geothermal systems use 70% renewable energy and protect you against spikes in oil and utility prices. To increase your energy savings still more, tighten the “thermal envelope” of your home by identifying and sealing hidden air leaks and adding insulation.

If you wish you lived in a “recycled” home, get to know your local salvage yard. Many communities have “architectural salvage” shops and recycle/reuse areas in their landfills. When you do your next home improvement project, go shopping at your landfill first. This is not only great for the environment; it’s also great for your budget. Plus, you’ll end up with a creative, unique home. (Of course, make sure that you don’t re-use items containing lead, asbestos, or other contaminants.)

If you wish you lived in a New Urbanist community, start walking and biking in your own community. Experiment with replacing some of your car trips with walking or biking trips. If you find that your community isn’t pedestrian- or bike-friendly, work with local politicians to change this. Learn about your local public transportation options to see if you can fit them into your lifestyle. If you’re in the market for a new home, make location and proximity to work and shops a primary consideration.

If an “ultra-small” home looks like fun but seems impractical as a long-term residence, consider reducing the size of your own living space. If your kids are grown, it may be time to downsize to a smaller home that uses less energy. If you’re building a new home or an addition to your current home, build only what you need. Sometimes the greenest building decision you make can be deciding to build less.

(The “Not So Big House” website (http://www.notsobig.com) is a great resource for those interested in downsizing while maintaining a high quality of life.)

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IAQ – Filters

Wednesday, June 29th, 2011

Installing air filters in your home is a great way to make sure the air your family breathes every day is safe and free of contaminants. But you shouldn’t just go out and buy the first air filter you see. When it comes to quality air filtration, HEPA filters are the industry leaders, and for good reason. They can remove up to 99.97% of indoor air contaminants that measure 0.3 microns or larger, a phenomenal success rate unmatched by any other filters on the market.

Proper HEPA Filter Practices

To be effective, even HEPA filters need to be installed and maintained properly. Consulting with an HVAC professional is the best way to ensure that the air filtration system you get is completely compatible with your home heating and cooling system. The filter must also be installed in the appropriate place so it can catch the most contaminants. Especially if you have a forced air heating and cooling system, there are a lot of potential locations for your filters. A good HVAC professional can help you determine which spots will serve you best.

Changing Your HEPA Filters

Once your filtration system is in place, you should maintain it properly so it continues to catch and remove all those unwanted particles from your indoor air. Keeping up with the proper filter changing schedule is a big part of this. Every HEPA filter comes with manufacturer’s recommendations on how often the filter needs to be changed. Prefilters often need to be changed more often, sometimes even once every 90 days, so you should find out if your system has one of these as well.

Many HEPA filters only need to be changed once every year or two, but the conditions in your home can make it necessary to change them more often. For example, if your home has a lot of dust or other specific air contaminants, you may need to change your HEPA filter as often as once a year.

Both HEPA filters and prefilters are quite easy to remove and replace. If you’re not sure how to do it, have your technician show you the next time they come out for a routine maintenance visit or when they put install the system. As long as you replace your filters regularly, you should have no trouble maintaining high indoor air quality with a HEPA air filtration system.

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Indoor Air Quality Options

Monday, June 27th, 2011

Maintaining high indoor air quality is always worth investing time and money in. After all, if the air inside your home isn’t healthy, it can cause all kinds of health problems for you and your family. The state of the art home heating and cooling systems we have today make it possible to enjoy a perfectly temperature controlled indoor environment all year long, but they also trap indoor air pollutants and contaminants inside without proper ventilation.

Choosing a System that Works

Luckily there are a number of great products out there designed to remove these pollutants before they cause you and your family discomfort or illness. Before you run out to buy a new system, however, you should first consider what each has to offer and what pollutants you need to remove. You might have some idea about this already, but the best thing to do is talk to a professional who can help assess your indoor air and determine which types of contaminants are most prevalent in your home.

Different types of indoor air cleaners are better at targeting different types of contaminants. For instance, HEPA filters can remove up to 99.97% of particulate contaminants that measure 0.3 microns or larger. This includes things like pollen, pet dander, dust mites and mold spores, so if these are the things you want to target, an indoor air system that uses HEPA filters is probably right for you.

However, if you’re more concerned with getting rid of smoke odors and cooking fumes, you probably want a system that targets even smaller particles. Air ionizers are more appropriate for these types of indoor air quality issues, as they can effectively remove much smaller particles than most HEPA filters. On the flip side, ionizers aren’t as efficient at removing the larger contaminant particles, so if you want to target both small and large contaminants, you need a system that combines both of these technologies.

Bacteria and viruses are also a problem when they find their way into your indoor air and they can be particularly tricky to get rid of. HEPA filters and air ionizers both have trouble completely eradicating these pathogens, but UV germicidal lights can be incorporated into your indoor air cleaning system to tackle biological contaminants effectively.

No matter what type of home air quality problem you have, there is a system on the market that will target and remove the pollutant. The key is to know which pollutants effect you the most and which products will do the best job of removing them from your home.

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What Are Limit Switches and How Do They Work?

Monday, May 30th, 2011

When you set the thermostat on your air conditioning system, you pretty take for granted that the system will maintain that temperature throughout your house. But did you ever stop to think about how it’s actually accomplished? The truth is that there are many moving parts that all play a role in keeping your home cool and comfortable, and one of these is the limit switch.

What Is a Limit Switch?

Although you’re probably not aware of it, you’ve encountered plenty of limit switches over the years. A limit switch is anything that stops an electric appliance under certain circumstances. The little switch that turns the light on in the refrigerator when you open the door and then off again when you close it is the perfect example of a limit switch. Another common one is the switch that stops your washer or dryer from running when you open the door. Limit switches are used for a variety of appliances and gadgets to not only save electricity but to keep you and your device safe.

Limit Switches and Air Conditioning

The limit switch on your air conditioning system is the link between the blower on your air handler and the thermostat. When the thermostat senses that the desired indoor temperature has been reached, it stops the air conditioner from producing any more cold air. At that point, it’s important for the blower to stop functioning as well.

If it doesn’t, the blower will continue to move and warm air rather than cold will begin circulating throughout your home. However, if the blower shuts off too soon, the cold air that’s still being generated by the air conditioner won’t be able to circulate. So it’s essential that the blower be switched off at the same time the cold air stops arriving. That’s exactly what the limit switch does.

While it’s only one very small part of a large machine, the limit switch in your air conditioner plays a vital role in keeping your home comfortable and in allowing your air conditioning system to function as efficiently as possible.

If you notice that your air conditioner is shutting off too soon or not soon enough, it may be because of a broken limit switch. Sometimes, the system simply needs to be reset, something you can do with the help of your owner’s manual. However, if your limit switch is broken, you should contact a professional to take a look and determine if it needs to be replaced.

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Is Geothermal for Me?

Monday, April 18th, 2011

Geothermal heating is a great alternative to other types of home heating systems. It is safe and efficient, costs very little to operate and makes use of a great renewable resource right below our feet. But is it right for you? Well, geothermal heating may be the right choice for many people, but there are many things to take into account before you can determine whether or not it is the best choice for your home.

The first important thing to understand when you are trying to decide whether or not to go with geothermal heating is how one of these systems actually works. A geothermal system heats your home by extracting heat from the ground and then transferring that heat into your indoor air. This happens when liquid, usually water or antifreeze, passes through a loop of pipes installed several feet below the ground.

The liquid absorbs heat from the ground, which in the winter is always warmer than the air, and carries is back up to an air handler inside your home where that heat is allowed to disperse into the air. Once the air is heated, the air handler blows the air through a system of ducts throughout your house, providing a constant stream of heated air to all areas of your home. The liquid, on the other hand, simply cycles back through the ground loop to pick up more heat and repeat the same cycle over again.

Because a geothermal heating system does not actually generate heat, it requires very little energy to operate. This means that it is both very cheap for you to run and environmentally friendly. But since installing a geothermal heating system involves putting pipes in underground, it can be pretty expensive initially. However, as long as the amount you save every month on your heating costs is enough to offset the high initial price of installation, it is worth it to put down the money up front.

Another alternative, of course, is a more traditional air source heat pump. These are much cheaper to install and nearly as cheap to run. However, air source heat pumps are not as efficient when the air temperature gets below freezing as a geothermal system can be. If you live in an area with harsh winters, the geothermal heat pump is a better option than an air source unit.

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