Tuesday, November 29, 2011

Geothermal heat pump 5 ton

!: Promotional Geothermal heat pump 5 ton quickly

Brand : Mcquay International | Rate : | Price :
Post Date : Nov 29, 2011 13:18:40 | N/A


Mcquay International Geothermal Heat Pump 5 Ton Vertical Floor-mounted (½ to 25 tons) Geothermal Credits Due to the recent passage of the2009Stimulus Package there are new benefits to installing a geothermal heating and cooling system!Thispackage offers a onetime credit of 30% of the total investment for all residential ground loop or ground water geothermal heat pump installations.There is nomaximum limitcap oninstallation cost. Energy Star requirements must be met or exceeded and the unit must be installed after December 31, 2007 to qualify for this credit.To file for the credit owners should complete the Renewable Energy Credits subsection on their return forms or speak to a professional associate. No proof of purchase is required; however, owners are encouraged to keep records of the purchase ...

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Geothermal heat pump 5 ton

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Thursday, November 24, 2011

Geothermal Heat Pumps: A Guide for Planning and Installing

!: Discount Geothermal Heat Pumps: A Guide for Planning and Installing where to buy

Brand : | Rate : | Price : $90.21
Post Date : Nov 25, 2011 02:49:33 | Usually ships in 24 hours

Geothermal Heat Pumps is the most comprehensive guide to the selection, design and installation of geothermal heat pumps available. This leading manual presents the most recent information and market developments in order to put any installer, engineer or architect in the position to design, select and install a domestic geothermal heat pump system. Internationally respected expert Karl Ochsner presents the reasons to use heat pumps, introduces basic theory and reviews the wide variety of available heat pump models.

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Thursday, November 17, 2011

GeoExchange Systems

!: GeoExchange Systems

Geothermal heating and cooling systems are considered to be the most energy-efficient, environmentally clean, and cost-effective space conditioning systems available today. These systems are so good that the U.S. Environmental Protection Agency (EPA) has said that they are. Geothermal technology uses the earth's renewable energy below the surface, to heat or cool your home or any other building. This system is sometimes referred to as a geothermal heat pump, a ground source heat pump, or green heat. GeoExchange systems are the best choice you can make for your pocketbook and your planet.

In the winter, a water solution circulating through pipes buried in the ground absorbs heat from the earth and carries it into your home. The GeoExchange system inside the home uses a heat pump to concentrate the earth's thermal energy and then to transfer it to air circulated through standard ductwork to fill the interior space with warmth. In the summer , the process is reversed and heat is extracted from the air in the house and transferred through the heat pump to the loop piping. The water solution in the ground loop then carries the excess heat back to the earth. The only external energy needed for geoexchange is the small amount of electricity needed to operate the ground loop pump and fan.

The benefits to using a GeoExchange system is lower utility bills (25% to 70% lower than with conventional systems), lower maintenance, and higher levels of comfort year-round. You will also have the peace of mind of knowing you are being environmentally responsible. Since a Geoexchange system burns no fossil fuel to produce heat, it generates far fewer greenhouse gas emissions than a conventional furnace, and completely eliminates a potential source of poisonous carbon monoxide within the home or building.

The EPA found that, even on a source fuel basis, accounting for all losses in the fuel cycle including electricity generation at power plants, GeoExchange systems are much more efficient than competing fuel technologies. They are an average of 48% more efficient than the best gas furnaces on a source fuel basis, and over 75% more efficient that oil furnaces. In fact today's best GeoExchange systems outperform the best gas technology, gas heat pumps, by an average of 36% in heating mode and 43% in cooling mode.

Homeowners using a GeoExchange system can see a savings of 30% to 70% in the heating mode, and 20% to 50% in the cooling mode compared to conventional systems. A well designed residential system can exhibit positive cash flows from the first month that it is in use.

Today there are more than one million installations in the Unites States. Although this is a very small percentage of the total HVAC market, the number of people who are choosing to install geoexchange systems is growing rapidly (about 20% every year) as more learn about the technology. There are also a large number of commercial enterprises, including factories, retail stores, office building and schools using the GeoExchange systems to save energy and protect the environment. Should all of the nation's schools convert to geoexchange, the EPA has estimated that we could reduce oil imports by 61 million barrels annually.

The prices have a wide range based on a number of variables, such as your home or building's size and design, the brand and model you choose, your location, and other factors, so it is impossible to provide a number, but you may be surprised how affordable it is. To find out how much it would cost to install a GeoExchange system into your home or business, you will need to contact a contractor in your area for an estimate. There are Federal & State incentives offered to install GeoExchange systems in many areas so check to see if you qualify for any rebates.


GeoExchange Systems

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Wednesday, November 9, 2011

Pros And Cons Of Geothermal Energy on a Wide Scale

!: Pros And Cons Of Geothermal Energy on a Wide Scale

The intensely high temperatures at the core of the earth originated from vast masses of hot substances collapsing during the formation of the planet. Since then the heat has continued to be emitted due to radioactive decay of atoms making up the earth below. This earth-sized nuclear-reactor will likely continue to produce heat for millions and millions of years still to come, which makes it a renewable resource.

The other aspect of geothermal power is that water is intrinsically involved in the process. Again, due to the water cycle, it is also renewable. This type of renewable energy has also been shown to reduce incidence of acid rain to only 3% of other traditional forms of electricity generation.

A small amount of potential pollutants e. G. Sulfur dioxide, do come up with the steam, but they are returned into well from which they came, or are changed into industrial chemicals. Because no fuel combustion is required for getting this form of energy, it is very clean, boasting a small carbon footprint. It is thus an appealing alternative to methods requiring burning, with associated greenhouse gas emissions to produce electricity.

In comparison to other power stations, like those that are fuel-driven, the technology employed to channel this subterranean steam to turbines, requires less space, with no pipelines needed to supply fuels to power machinery, since the steam comes up on its own. The steam produced by the high temperatures deep down below the surface is also a local product in every country, meaning that there is no need to depend on foreign input for any aspect of it.

Making use of the wealth of energy stored underneath the surface can be problematic. This is because only sites that have hydrothermal wells close to the surface are cost-effective. Thus areas like Hawaii and Alaska and a few others are currently suitable. This means it cannot be exploited on a wide scale.

Companies that are approached to undertake establishing such power generating establishments are reluctant to do so, as typically these areas are synonymous with earthquakes and volcanoes, making capital investment risky. In addition, the pockets of steam that are found by drilling, can be insufficient in quantity and will run out from time to time, requiring repositioning of the pipes to tap into new wells.

The key to being able to introduce geothermal energy usage on a wider geographical scale is limited by the advancements in drilling technology. The reason for this is that the heat and corrosive elements associated with this type of drilling requires special equipment. This equipment is hugely expensive at present.


Pros And Cons Of Geothermal Energy on a Wide Scale

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Saturday, November 5, 2011

Green Construction and Heating Systems

!: Green Construction and Heating Systems

Two of the bigger energy uses are cooling and heating. Green heating systems are designed to minimize such energy use during cooler periods.

There are several heating systems used in green homes. One type uses geothermal energy for heat. Geothermal refers to using the natural heat of the earth. Most systems work by running water from under the earth through a series of pipes called a loop. The loop takes the water to a heat exchanger where the heat is removed from the water and used for heating purposes. The most simple is the open loop. Since ground water generally maintains a constant temperature, water is pumped from one well through a heat exchange device, and deposited into a second well, usually at a distance from the first.

A closed loop geothermal system circulates the water through a series of pipes. The pipes are buried in the ground and the water picks up heat and the heat exchanger removes it. There are several arrangements of piping, but the general idea is the same. Although geothermal heat is very inexpensive, a system has to be fairly extensive to provide all of a homes heating requirements, and most systems are intended to supplement other heating sources.

A much better source of heat is sunlight. Solar power systems convert sunlight to heat for use in space heating and domestic water heating. Most solar power systems have a very high initial cost, but a very low operating cost. This low operating cost is often overlooked in the planning stages when more attention is being paid to the initial costs. In order to maximize the advantages of the low operating cost, it is important to make sure that the home is well insulated. In the case of water heating systems, all pipes must be heavily insulated.

Solar water heating systems can be either passive or active. Passive systems use natural convection to move water from the heat source to the heat exchange point. An active system uses pumps and controllers. The water is collected in a tank fitted with solar panels or heat absorbing materials where it is warmed by sunlight. The pumps move it to a heat exchanger where the heat is removed and circulated through the home. In the case of a water heater, the water can be used directly, and it is replaced by cold water from the existing water supply.

Geothermal and Solar heating systems are two examples of green construction types of alternative sources for heat and energy. The advantage is the reducing of the reliance on fossil fuel generated heat or energy. The technology for utilizing these sources of heat is still in its infancy. It is expected that the rise in green construction philosophy will encourage further experimentation in this area.


Green Construction and Heating Systems

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