The basics of geothermal


Published on

The basics of how a geothermal heating and cooling system works for homeowners on Long Island, NY.

Published in: Technology, Business
1 Like
  • Be the first to comment

No Downloads
Total views
On SlideShare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide

The basics of geothermal

  1. 1. .
  2. 2. The old method of Residential Heating and CoolingMost homes have a separate heating system which burnsexpensive oil or gas in a furnace.
  3. 3. Residential Heating and Cooling The furnace heats air and sends it through the home via air ducts to each room.Some homes use boilers to send hot water to radiators.
  4. 4. A lot of money goes up thechimney…Unfortunately, especially withfurnaces and boilers built before2000, much of the heat goes upthe chimney instead of heatingyour home.
  5. 5. Poor efficiency = Wasted money In fact, according to “Consumer Reports”, most gas furnaces built in the 70s had an Annual Fuel Utilization Efficiency around 65%. And most oil burners were even worse.
  6. 6. Fossil fuels seem more expensive every day As energy costs have gone up, the industry has been trying to find ways to keep your home comfortable for less cost.
  7. 7. Free energy from the earthInstead of burning fossil fuels, some companies havesolved the problem by taking free energy from theground to keep you comfortable.The process is called GEOTHERMAL heating andcooling.
  8. 8. Heat PumpsThe heart of a geothermal systemis the HEAT PUMP which replacesall the components of your oldheating and central air conditioningsystemsWe recommend Next Energygeothermal heat pump systems
  9. 9. Free energy from the earthFree energy (temperature) from the earth is brought toa Heat Pump and used to warm and cool your homecompletely replacing the expensive oil or gas youcurrently use. FREE OR $ FORTUNE $
  10. 10. Free energy from the earthA couple feet down, the ground stays approximately 55degrees all year long. And 55 degrees is warm in theWinter and cool in the Summer.It is that temperature differential which makes a heatpump work.
  11. 11. Geothermal Energy Efficiency• With geothermal, you only pay for roughly 25% of your home’s heating and cooling costs, the rest comes FREE from your backyard
  12. 12. Heat Pump EfficiencyA conventional furnace is rated on how efficiently it uses fuel.Furnaces from the 70s were typically around 65% efficient. Anaverage furnace today is 80% while a high efficiency unit may be90% efficient.That means for every $1 of fuel you put in, you get 80 or 90 cents ofheat.Heat Pumps are measured in COP – Coefficient Of Performancewhich is a measure of how many BTU’s of heat are generated fromthe electric energy used.A Next Energy Heat Pump, connected to a geothermal field, canoffer a minimum COP of 4.0 which translates to 400% efficiency.Because you use free energy from the earth, that means for every $1of fuel (electricity) you use, you get $4.00 worth of heat.
  13. 13. Heat Pump EfficiencySEER stands for Seasonal Energy Efficiency Rating , it isused to describe the energy efficiency of air conditionersby blending the BTU output of the air conditioner withthe cost of energy used per hour.
  14. 14. . Average SEER ratings for air conditioners from the 70s would have been 6 – 8. Efficiency ratings today start at the Federal minimum of 13 with mid range units at 14.5 to 17 SEER . Some high efficiency air conditioners offer 23 SEER ratings. Unfortunately, as the weather gets hotter, conventional A/C efficiency can decrease by over 20% in efficiency! Next Energy Geothermal systems range from 25 - 40 SEER ratings and their efficiency remains stable, even on the hottest days!
  15. 15. Free Central Air ConditioningIn addition to saying “Good Bye” to your oil man,another big benefit is that while you are purchasing anextremely efficient heating system for your home you arealso getting a properly sized central air conditioningsystem, virtually for free!
  16. 16. Free Central Air Conditioning with a Geothermal Heat Pump System Because a heat pump uses refrigerant to change the temperature of the air just like the refrigerant in your refrigerator which is actually a heat pump operating in the cooling mode.
  17. 17. All you feel is comfortSo, go ahead, set the thermostat to be comfortable.No more wearing sweaters in the Winter because it istoo expensive to keep the house at a comfortabletemperature – sweaters should be a fashion statement!
  18. 18. All you feel is comfortThe heat pump does the rest by simply reversing thedirection the refrigerant flows in the systemThe refrigerant works as well at warming your home as itdoes cooling your home.
  19. 19. Heat pumps have been around a long time since 1857 when Heat pumps have been in existence Peter von Rittinger built the first one You have probably used several of them and not known they were heat pumps… Refrigerator Dehumidifier Air Conditioners
  20. 20. A refrigerator is a heat pump Coil #2 A refrigerator is a heat pump operating in the cooling mode• There are two heat exchange coils and a compressor which moves refrigerant between the two coils Condenser Coil # 1
  21. 21. The theory of “removing heat” A refrigerator feels cool on the inside because heat from the inside has been absorbed by refrigerant in the cooling coil. That refrigerant constantly circulates, carrying the heat it just picked up to another coil on the back where a fan blows air across it, taking the heat away.
  22. 22. The theory of “removing heat”Instead of using outside air which is cold in the Winterand hot in the Summer, a Geothermal system uses theconstant temperature in the earth to warm your home inthe Winter and cool it in the Summer.
  23. 23. Methods of extracting energy from the earthTo get energy from the earth, you can drilla well, pump water up to the heat pumpand drop it back down into the ground- that method is called an open loop. Or, insert pipes into borings and run fluid thru the pipes. The fluid is constantly circulated, exchanging energy between the earth and the heat exchanger, that is a closed loop system.
  24. 24. Pros and cons of open loop systemsOpen loop systemProsGenerally cheaper to installOnly needs two or three wells.ConsDumps water back into aquifer or soil after useRequires high HP pump = expensive to runShould treat water entering systemPump submerged 100+ feet with relatively shorter life expectancyNeeds well drilling truck to repair or replace pump with associated property damageRequires DEC permit and report if failure occursUnknown environmental impact
  25. 25. Pros and cons of closed loop systemsClosed LoopProsWarranted 30 yearsSmall, low HP pump at heat pump = low cost of operationPump can be changed in ½ hour if neededNo environmental impactConsDrilling cost can be higher
  26. 26. So, how can 50 degree earthtemperatures replace 1600 degree flames in a furnace A furnace uses flames, created from burning oil or gas, to heat air. When you stop the flames, the area cools quickly to ambient temperature and more flames are called for, which means more oil or gas is used. And don’t forget, much of the heat from those flames goes up the chimney.
  27. 27. So, how can 50 degree earth temperature replace 1600 degree flames in a furnace A geothermal system absorbs ground temperature and carries it to a coil in the heat pump. The refrigerant in the coil either boils or turns cold, depending on which way the refrigerant is traveling in the loop.
  28. 28. So, how can 50 degree earthtemperature replace 1600 degree flames in a furnaceThat heat (or cold) is then transferred at the second coilin the heat pump which warms, or cools air which thendelivered to every room in your home.Finally, the hot air in your home in Summer, or cold airin your home in Winter, transfers it’s energy back to therefrigerant which carries it back to the heat pump coiland back to the earth.
  29. 29. How about maintenance costs? Remember the refrigerator example? How many times in the last 10 years have you needed someone to come fix it, clean it, tune it up or get it going? Now think of your furnace. How many times in the last 10 years have you needed someone to come fix it, clean it, tune it up or get it going?
  30. 30. So, what will it cost? Less than you think, Check out our calculator at :  There is a 30% Federal Tax Credit  A $1,000 LIPA incentive  Most people qualify for a free energy efficiency home audit which can qualify you for up to $25,000 in 2.99% financing which can be billed on your LIPA bill.  We offer low interest financing on the drilling portion of the project which averages 25% of your cost.
  31. 31. So, what will it cost? By using Integrated Geothermal, you can order your brand new, high efficiency geothermal heating and cooling system and pay almost nothing down! And the system will pay for itself usually in 4 to 6 years out of the savings you enjoy from saying “Good Bye” to your oil man. So if you are paying your energy bills, this is the opportunity you have been waiting for.
  32. 32. Thanks for your time and interest For more information about available incentives, rebates, low interest financing or a free home evaluation, please contact us at: or Integrated Geothermal Hauppauge, NY 631 – 859 - 8805 Geothermal… less than oil or gas. A LOT LESS!
  33. 33. Give em a break.