Heat Cool and Insulate » heat pump

How long can I expect my Rheem heat pump/air conditioner to last for my home?

jstroud — Wed, 29 Dec 2010 08:32:52 +0000

This is a two-part question: 1) I don’t know the first thing about air conditioning units, but a friend of mine told me residential air conditioners only last a maximum of 10-12 years. This seems like a pretty short lifespan for such an expensive piece of equipment. Is he correct? 2) Also, is the heat pump a separate unit from the air conditioner?

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Do natural gas heat pumps produce more moisture in the winter than an electric heat pump?

Jeff — Thu, 23 Dec 2010 11:11:24 +0000

I have an electric heat pump now and recently installed a whole house humidifier because of the dry winters. I am installing a natural gas heat pump in my new house and was wondering if I will need a whole house humidifier. FYI: I live in northeast PA. Thanks.

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can well water be used for geothermal heating?

Jeff — Wed, 08 Dec 2010 08:35:37 +0000

It seems like using an open loop system using the already existing well and water in it would be a good cost effective use of the large mass of water 60 ft. below the surface. Couldn’t you constantly circulate it to exchanger for the heat pump? this would be a separate pump from the water supply for the home.please give any and all suggestions.I really want geothermal heat but cant afford the typical installation

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Efficient heating, propane, natural gas, or heat pump?

Jeff — Mon, 15 Nov 2010 11:19:42 +0000

Heat pump is to unreliable, am thinking of changing to propane or natural gas. Which is cheaper propane, natural gas, or electric? I know it depends on the rates where you live but as a general rule of thumb.

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What insulation R-value?

jstroud — Sun, 25 Apr 2010 20:22:54 +0000

What R-value should I use in my attic, I will be using the cellulose blow in. I live in Missouri and summers & winters can get pretty warm/cold. I live in a ranch home 2000sq ft on a slab with 3ton electric heat w/ heat pump. Well just give me so info thanks

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How much to install a natural gas heating system?

Jeff — Wed, 21 Apr 2010 11:10:11 +0000

We bought a home that has 2 units – one for the main floor and basement and one that covers the upstairs.

The previous owners updated the system in 2004 with a heatpump upstairs. I HATE heatpumps.

I want tto just leave the heat pump in place (use it for AC only), but add on a nat. gas system. It has to cover about 1200 sq. feet.

The gas line has to be run from the basement to the attic. About how much would that run?

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Carrier Air Conditioners

Jeff — Thu, 04 Mar 2010 17:25:10 +0000

Air-conditioning is one of a handful of technologies that has utterly transformed the way we live. Throughout history people have tried to stay cool during hot months of the year. From ancient Persians using systems and wind towers to Chinese during the Han Dynasty using rotary fans and Egyptians using ventilators as well as Mad King Ludwig using air cooled by water from mountain runoff. In 1902 Willis Carrier invented the first modern air-conditioning system powered by electricity. Developed to control temperature and humidity in manufacturing plants primarily in the printing industry, this innovation has become a must-have for most businesses and homes in the US and in many countries around the world.

Today

Carrier air conditioners

are found worldwide in applications from heavy industrial to home and automotive systems. Having owned several Carrier air conditioners I can personally vouch for their reliability and performance. Our most recent acquisition in the carrier line is a Carrier hybrid heating system which combines an air conditioner/heat pump and a high efficiency gas furnace.We have had this system in place now for three years and could not be happier. It has substantially lowered our heating and cooling bills and has operated flawlessly.

The Carrier hybrid heat system, in conjunction with the infinity control set allow flexibility not available to the typical HVAC system. During times of moderately cool weather that heat pump functionality of the carrier air conditioner allows heating of your house by electricity only. With today’s heat pumps this can be much more economical than even a high efficiency gas furnace. This works by reversing the normal air-conditioner functioning and extracting heat from the outside air to heat the house. As temperatures drop this becomes less efficient and at a certain temperature the system will switchover to the gas furnace. This gives great flexibility in how your home is heated and can provide substantial savings over using a gas furnace or electric resistance furnace.

Another advantage I discovered after putting the system in was the ability to buy electricity from our utility at demand prices. Since electricity prices fluctuate during the day and are normally very low at night when much of our heating demand occurs in the spring and the fall it has further reduced our overall utility costs.

For anyone considering installing a new HVAC system I highly recommend Carrier air conditioners and heating systems.

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How Does Geothermal Heating Work – A Site That Explains It

Jeff — Thu, 28 Jan 2010 06:01:13 +0000

How does geothermal heating work

Though geothermal heating has been proposed as a potential technology to clear up the worldwide energy crisis, many of us are not aware as to how does geothermal heating system work. In this heating system, air is circulated from within the Earth’s surface to heat or cool a house.

Geothermal heat pertains to heat kept within the Earth’s surface. The term geothermal springs from the Greek words, geo for Earth and thermos for heat. As per evidences, heat energy in the deep underground results from the rot of radioactive particles and assimilation of solar heat. The average temperature of geothermal heat is fifty – 70 degrees Fahrenheit. This geothermal energy can be used as an alternative power source for heating houses and household appliances.

Geothermal Heating

Geothermal heating is an complicated leading edge technology implemented for clearing up the worldwide energy crisis. It makes use of geothermal energy for heating or cooling applications. As of now, it has succeeded in providing more than 0.07 p.c of the global power usage. In a geothermal heating system, the heat power contained inside the Earth’s surface is utilized for heating purposes. It’s also referred to as ground source heat pump. The standard geothermal heating system has the capacity to heat up a building without other heating appliances. Let’s see in a nutshell how does geothermal heating system work.

Working of Geothermal Heating System

For better understanding of the working of a geothermal heating system, first let’s discuss about its main components. In this heating system, there are 3 primary parts, particularly, a geothermal heat pump, ground loop system and a distribution system. The geothermal heat pump is installed within the house or property, while the ground loops or pipes are configured under the Earth’s crust at a specific depth. The depth of the piping depends upon the possibility of geothermal heat in the particular area.

How does a ground source heat pump work

The pipes of the ground loop are connected to the geothermal heat pump and the distribution system is configured as specified in the obligation of the user. The heat pump forces a liquid refrigerant or cool water into the pipes of the ground loop, which is then circulated underground. The refrigerant is warmed up naturally due to geothermal heating inside the Earth’s surface. The heated water is circulated back to the heat pump that exchanges the heat by employing a heat exchanger. This heat exchanger then circulates warm air inside the house via the distribution system.

Speaking about the uses of geothermal heating system in warmer months, this may be operated for cooling a home like air conditioners. The working principle of the system is reversed so that heat exchanger now supplies cool air in the house. For setting the specified temperature, an electronic thermostat is configured in the system, which heats or cools the house accordingly . This is in brief an answer to how does a geothermal heating system work.

Since the heat exchanger is operated by using electricity, the final working of geothermal heating system consumes some amount of energy. Nevertheless, it is terribly inexpensive to use geothermal heating in comparison to other heating systems. Geothermal heating system is more successful in areas that lie close to the plate tectonic limits. Over these regions, the heat-laden magma often rises near to the earth’s surface. In such cases, geothermal heating can be effectively used for heating water.

One of the major advantages of geothermal heating is that it is renewable and eco-friendly. It is replaceable since heat trapped inside the Earth’s surface can be used for both heating or cooling purposes. Also, unlike any other traditional heating appliances, operation of geothermal heating system doesn’t emit toxic gases or pollutants.

Incredible Guide About Heat Pump Troubleshooting Problems

Jeff — Thu, 28 Jan 2010 06:01:05 +0000

Is your heat pump in a need for repair? Are you facing heat pump problems? If yes, then go through this article to understand the tips for troubleshooting heat pumps.

Heat Pump Problems : troubleshooting heat pumps
Heat pumps are the mechanical devices that are configured for transferring heat from one location ( source ) to another ( sink ). In almost all of the cases, heat pumps draw heat either from the atmospheric air or from beneath the Earth’s surface. The former type is called air source heat pump, while the latter machinery is called geothermal heat pump. Heat pumps serve for both cooling and heating the home in extreme environmental conditions.

The technology of heat pump is utilized in some home appliances such as heating system, freezers and air conditioners. A heat pump works by consuming a touch of energy for transferring heat from an area with low temperature to another with a higher temperature. It is more energy efficient compared to heating and cooling devices like furnaces and ACs. Nonetheless like other machinery, there are certain heat pump issues, that may arise over a time period. Let’s discuss in detail about troubleshooting heat pumps.

Troubleshooting Heat Pump Problems

A brief knowledge about the parts of a heat pump will help in an easy diagnosis of the heat pump Problems. The basic components include an evaporator ( circulating fans ), reversing valve, condenser ( fridge coil ) and a compressor. Prior to beginning with heat pump troubleshooting, switch off the power supply at the main circuit breaker. Following are some of the common heat pump issues and paths to troubleshoot them :

No Heat Production : If there is no heat production, then the problem may be because of failure in the main power supply or overloading of the motor. In order to troubleshoot this malfunction, check the power supply and thermostat and fix them ( when necessary ). In case there’s power supply, reset the motor by pressing the reset button. Also, check the ignition of the heat pump for any defects. If none of these tips work, then you can hire a professional for proper fixation.

Insufficient Heat Production : inadequate heat production is one of the major heat pump issues. Mostly, it is caused due to obstructions in the air ducts. Other reasons for this defect may be low thermostat setting and presence of mud in the air filters. You can check these systems whether they are working properly or not.

High and low Head Pressure : A heat pump difficulty with low head pressure can be due to a scarcity of refrigerant, damage of the compressor and dirty evaporator. On the contrary, high head pressure frequently results from overfeeding of the refrigerant and mucky condenser. Keep an eye on these systems and recheck whether the heat pumps start working normally or not.

Freezing of Heat pump : Freezing of the heat pump unit might be caused thanks to a faulty air blower or accumulation of dust and dirt in the filters and evaporators. For fixing this problem, check for the unfreezing option in your heat pump unit. If there’s, you can defrost it and check the compressor for any defects. Do not forget to check the calibration of the thermostat.

Noisy Heat Pump : noisy functioning of the heat pumps is caused thanks to the reasons like loose screws, improper fixation of the belts and noise from the air channels. To fix and troubleshoot this malfunction, you can tighten the screws, check the belts and introduce a plastic insulation inside the metal air ducts.

Amazing Swimming Pool Heat Pump Cover – Protect Your Swimming Pool

Jeff — Thu, 28 Jan 2010 06:00:54 +0000

Are you thinking about buying a pool heater? A very cost effective option would be getting a pool heat pump cover. Solar heaters don’t require any additional source of energy, so it’ll heat up your pool for free.
Solar heater for swimming pools – how does it work?

Unlike other sorts of solar powered devices, solar pool heater works rather straightforward. Solar panels collect heat from the sun. They are usually installed on your roof or next to the pool. A pump forces water from your swimming pool thru a filter that leads it into a solar collector. The water heats up in the collector then returns into the pool thru the pump.

This won’t let you swim in Jan, naturally. But it’ll make swimming snug when the weather just turned to be too cold for a snug swim. In climates with cold winter, installing a swimming pool heater can bring your swimming season up to five, six month a year, when without it you would only swim two or three month. In general, on a bright day a solar heater can raise your pool water temperature by seven to ten degrees.

How big a heater is needed and how much will it cost?

The dimensions of a swimming pool heater you need relies on the size of your pool and the climate in your aria. For bigger pools and colder places you want bigger solar heaters. The cost of your heater is usually proportional to its size. Heaters with 2′x20′ panels are the hottest. The price is about 150 bucks per panel. A set of two panels will keep an 18′-24′ pool warm. For bigger pools you will need more panels.

Installing your solar pool heater

Unlike solar water heaters, pool heaters are fairly simple to install. Each set should come with instructions. First you connect the panels to a pump. Than place the panels where the sun can heat them up. You can mount the panels to your roof or position them by the pool using frames available from the dealer. Initially you will notice the panels get very hot, but after a few minutes they’ll cool down.

working on your solar heater for pool

Your heater doesn’t essentially need any upkeep. However it’s critical to keep balanced water chemistry. Also check the filter once in a while to reassure that it is working properly.

Getting a solar heater for your pool makes much more sense than getting any other kind of pool heater including gas and electrical heaters. After you install your solar heater for swimming pool there will be no necessity to pay for energy to heat up your pool, the sun will work for you. You can also buy home heat pumps and cooling for your house.

Purchasing Geothermal Energy For Your Workplace – Here Is A Article That Describes How Does Geothermal Energy Work

Jeff — Thu, 28 Jan 2010 06:00:50 +0000

Understanding the benefits of Geothermal Energy and how does geothermal power work

Yellowstone isn’t just a geyser. Besides being a good spot to visit, this favorite holiday maker destination is a great visible example of geothermal energy.

Inspiring as Yellowstone is to go to, it’s only 1 tiny example of an incredibly huge source of clean, sustainable energy.

Geothermal energy-literally, heat from the earth-is a clean, abounding and versatile natural resource that is’s just waiting to meet an ever greater slice of the world’s continuously rising energy desires. This source of energy can be employed in 3 ways : for electricity production, directly to provide heat and via geothermal heat pumps.

Today, geothermal resources already supply about six % of the energy produced in California, ten p.c in northern Nevada, 25 percent on the island of Hawaii, as well as serious power in Utah. Geothermal steam and hot water are typically used to generate electrical power with the gentlest of environmental impacts.

Thermal waters piped from the ground support greenhouses, fish farms and municipal heating systems. Heat pumps use electricity and coils, or pipes buried in the earth to extract heat or cold from the earth. They can be installed almost anywhere and are widely considered the ideal means for heating and air-conditioning colleges, homes and workplaces. Here are some heat pump prices it your interested.

Geothermal energy has been described by energy experts as “buried treasure” and its potential is massive. This tremendous resource amounts to 50,000 times the energy of all oil and gas resources in the world.

This form of energy represents a promising energy supply solution, as folks become more nervous about global temperature rises, pollution and rising fossil energy prices. Geothermal energy produces only one-sixth of the carbon dioxide that a relatively clean, natural gas-fueled power plant produces and very little, if any, nitrous oxide or sulfur-bearing gases. No air emissions or liquids are discharged by binary geothermal plants.

Heating systems can easily be integrated into existing communities and can lessen reliance on foreign sources of fossil fuels, so enhancing national security.

The U.S. Dep. of Energy’s Geothermal Technologies program is working with industry to create geothermal energy as an economically competitive contributor to the state’s energy suppl one thousand y.

Amazing Heat Pumps – This Are For Sure Fischer Heat Pumps

Jeff — Thu, 28 Jan 2010 06:00:38 +0000

Fischer heat pump have been a reliable name under the category of heat pumps for many generations. These days, anyone related to the grandeur name is undertaking great pride to be a part of it, the history and for the dedicated clientele it owns.

The brand is a paragon of reliability, ultimate quality, durability and par excellence performance. Not surprising Amana heat pumps and cooling systems have now become a household name and integral part of nearly every house and business in the US.

Amana heat pumps are mavens in providing cooling as well as heating benefits via a single system. You can simply opt for an ideal system for your house or office as per your particular requirements. This is possible because they have focused on offering a full live of heat pump system to it’s’ clients.

This isn’t all. The state-of-art line of Amana heat pumps is efficacious in providing you the best guaranty protection facilities that is available in the cooling and heating industry.

The brand also has a solution for people who are aware of energy efficiency savings. They can select a heat pump system that is provided with highest HSPF and SEER ratings.

It wouldn’t be wrong to mention that Amana heat pumps are a worldwide reader in the heating and cooling industry. The brand name has been constantly emphasizing on providing super efficient and utterly trustworthy heat pump units to people with a promise of unbelievable quality, supreme comfort and outstanding performance for both home and offices.

It has been more than a century that Amana heat pumps has established itself as the best manufacture for home and office heat pumps.

They are a pure Yank company and already created a niche for itself as a respected name among most of the eminent HVAC organizations across the world. The readiness to in company creativity and reliability has won Amana heat pump, a reputable position in the industry around the world.

You can easily decide, from a wide range of prices of heat pump. Here are some of the available choices :

* Amana PHD 13 SEER packed heat pump : This variety is well known for its excellent heating prudence all year long. You would also get glorious cooling comport via these systems. The system features supreme efficiently Copeland scroll compressor. This enables you to enjoy a huge cut down on your power bills for an entire life. The beast part is that the system is fully equipped with sound blankets that guarantee sound free operation.

* Amman distinctions CPLT heat pump : This CPLT heat pump includes an eye catering louvered metal guard that works towards providing best of protection to the coil from a kind of damage and provides strength to the unit. These Amana heat pumps have been designed specially for ground level. This can be also utilized for roof top mount. The base pan helps in raising the entire unit just above the slab to provide the best of water drainage. The heat pump enjoys larger sturdiness and augmented UV protection.

Interested In Pool Heat Pumps – We Present Some Reviews By Owners Of Pool Heat Pumps To Help With Your Decision

Jeff — Tue, 29 Dec 2009 18:15:10 +0000

Solar Heating For Swimming Pools And Spas – Start Saving On Heating Bills

More and more pool owners are starting to use the great benefits that come with using the sun’s energy as a heat source. With the right products, you can make the most of the sun’s energy, using it to keep your pool comfortably warm all season long. By employing solar heating for swimming pools and spas, you can seriously reduce or perhaps lose your dependance on electricity and other non-renewable sources of heating energy, that may significantly slash your energy bills. At the same time, you will be seriously reducing your negative impact on the planet by using a green energy source. With the sun providing such a strong, renewable and free heating source, solar heating for swimming pools and spas is an idea that’s becoming more and more popular every year.

If you are a pool owner and wish to milk the sun’s free energy for heating purposes, there’s a wide range of fantastic products and solar pool heating systems to select from here are some prices of heat pump. One of the most typical ways to harness solar energy for swimming pools is through the use of solar blankets and reels. Featuring thousands of tiny sealed air pockets, solar pool blankets are specifically designed to promote the transference of heat from the sun into the water. Solar pool blankets also act as insulators, trapping heat in the swimming pool and preventing heat loss. Smaller solar covers with the same type of design are also available for spas and hot tubs. Solar pool & spa blankets are available in a selection of thicknesses ( generally between 8-mil to 16-mil ), each with their own features & length of warranty so there’s bound to be one that’s's perfect for your pool and your position. While full-sized solar blankets can be ham-fisted, they are relatively simple to use when attached to solar pool reels. Solar pool reels are available in manual models as well as water-driven models and supply a simple way to respond to solar pool blankets.

Other wonderful products that will permit you to harness the sun’s free energy to heat your pool include solar sun rings, solar pills and sun pool domes. Solar sun rings are passive solar heating devices which consist of 2 layers of UV-resistant vinyl. The top layer is clear and holds insulating air. This layer serves to focu one thousand s sunlight on the blue lower layer. The blue layer of solar sun rings then absorbs sunlight and converts it to temperature. When solar sun rings are spread over a swimming pool, they will cover roughly seventy to 80 per cent of the water’s surface, allowing for some the water to receive direct daylight and to remain open to the air to reduce the likelihood of algae growth. Solar sun rings are very safe devices as they stop accidental entrapment. They are also very easy to use as they can be placed and removed by one person.

If you are especially worried with ease-of-use, solar tablets and sun pool domes also provide easy ways to use solar heating for swimming pools and spas. Solar pills in particular are exceptionally easy to use as they just need to be placed in the pump basket. Solar tablets release a safe compound which forms an invisible shield on the water surface that lasts for approximately 30 day, reducing heat loss thru evaporation. While solar pills are almost trouble-free to use, it is important to notice that they are only about 60 per cent as effective as solar pool blankets and reels. On the other hand, sun pool domes need to be assembled, but are very easy to line up and take down. Likewise, since these vinyl and aluminum domes offer an enclosure for your pool that can stay in place all through the swim season, you can enjoy reduced evaporation, luxuriously warm night swims, and an overall longer swimming season without any trouble once the original assembly is complete.

All the above solar pool heating options can be used as your pool’s exclusive heating source or together with a typical heater or heat pump. While the second option will require some dependency on non-renewable energy sources, it could be a preferable option for folks who like to have bigger control over the heating of their pool. However if you want to be able to noticeably increase your pool’s water temperature and to increase your swimming season while only using the sun’s energy, you may want to consider a slightly more elaborate solar pool heating system. Solar pool heating systems are available for in-ground and above ground swimming pools and use solar energy panels and other similar devices to make really effective use of the sun’s free energy. In reality, solar pool heating systems can raise the temperature of your pool by as much as fifteen with absolutely no use costs, if you don’t belive us check out different review by owners of pool heat pump.

Purchasing Heat Pumps – Here Is A Website To Explain Geothermal Heat Pumps And How Does A Heat Pump Work

Jeff — Tue, 29 Dec 2009 18:15:08 +0000

Benefits Of Geothermal Heat Pumps and how does a heat pump work

The department of Energy and the Environmental Protection Agency have both recommended geothermal heat pump systems as among the most energy efficient, environmentally clean, and cheap systems for temperature control. owners can expect to enjoy a cushty, reliable, and cost-effective system while also reducing energy use and pollution.

Design Features
Ground source heat pumps provide heating, air-con, and, if so supplied, supply the house with hot water. They’re smaller in comparison to a normal heating / cooling unit and can easily be retrofitted into any home.

Reduced Vandalism
The mechanical components are safely found underground or within the home – which eliminates fears of vandalism or theft.

Durability
The underground loops carry warranties of 25 to fifty years. The pumps, which are safely located within the home, often last 20 years or more.

Upkeep
According to a study conducted for the Geothermal Heat Pump Consortium ( GHPC ), the maintenance costs are about one in three the cost of conventional systems. Actually, the sole work necessary involves occasional cleaning of the heat exchanger and regular changing of the air filters.

Unsurpassed Comfort
These systems don’t have fans, so instead of hearing and feeling blasts of air, you will enjoy a quiet, consistent temperature throughout the day.

Improved Humidity Control
Geothermal heat pumps provide better humidity control than a tradition system, therefore there’s a reduced chance for mold and mildew growth. These systems are good for people will allergy issues or lung Problems.

Eliminate Emissions
These systems don’t have on-site emissions or flammable materials. By eliminating any combustion you don’t have to stress about smoke, odors, or carbon monoxide in your home.

Low Environmental Impact
According to the U.S. Department of Energy, if just 100,000 houses converted to a geothermal heating and cooling system, carbon dioxide emissions might be reduced by 880 million pounds. Now, atmospheric CO2 is thirty percent higher than it was 200 years ago and if not reduced could cause serious damaging worldwide impacts. Geothermal technology offers a fabulous solution to lowering these Carbon emissions.

Energy Savings
While making an investment in a geothermal unit is initially one thousand dearer than a traditional system, the annual savings on energy bills more than compensates for the original output and you can mostly expect full payback in three to five years.

Excellent potency
With efficiency ratings at least three times higher than other heating and cooling systems it is ascertained that you are able to save between thirty to 70% on heating and cooling costs.

Purchaser Satisfaction
In a customer survey primarily based on heating systems, geothermal heat pump users report higher customer satisfaction than any other shoppers surveyed.

To describe geothermal heat pumps visit the link or search the net.

A Brief Look At The Heat Pump

Jeff — Thu, 09 Jul 2009 19:47:12 +0000

The main function of a heat pump is to help in improving the heating as well as cooling of a building. Such a device can emanate either hot or cold air depending on whether you need to warm up or cool down the building. A refrigerator provides an excellent example of what such a device is and this can be seen from the fact it (the fridge) uses special kind of fuel which is placed around the fridge’s circuit so as to operate its heat pump.A fridge’s circuit consists of : evaporator, condenser, expansion valve and compressor.

When heat is drawn away from its source it results in the evaporation of the working fuel (via the evaporator) and this causes release of heat which then cools down the area. With the release of heat the working fuel gets to be condensed by the fridge’s condenser and this in turn creates cool air which with the help of a reversing valve is aimed at the working fuel and this result in reversal leading to heating up once more.

The heat pump works just like this and it removes heat from a source so that a given area can be kept sufficiently cool. Typically, the heat pump is most often used in locations where there is greatest need for heating as well as cooling and where the existing source of heating and cooling is inadequate.

Heat Pump Is Used To Heat, Cool, And Dehumidify

So, heat pumps are used in heating and cooling and in dehumidification systems as well as to heat up domestic water. When used in standard heating systems the heat pump will separate the heat from different sources including air, water, soil and even bedrock. On the other hand the heat pump can also be used in cooling systems when it will discharge heat instead of separating the heat. Industrial as well as domestic heating and cooling solutions make good use of a heat pump as such a device ensures less consumption of energy and so is more cost efficient.

Different kinds of heat pumps are available with unique advantage and disadvantage. The ground source heat pump is the most popular among all options and it works without an external fan. It is also quiet and robust.

If you are worried about costs of heating and cooling then you can cut costs by using a geothermal heat pump. Such a pump can make use of energy that is already stored in the earth and in addition it is designed in a manner to ensure quiet as well as proper heating and cooling and of course it costs less to operate.