The basics of geothermal
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- 2. The old method of Residential Heating and Cooling Most homes have a separate heating system which burns expensive oil or gas in a furnace.
- 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. A lot of money goes up the chimney… Unfortunately, especially with furnaces and boilers built before 2000, much of the heat goes up the chimney instead of heating your home.
- 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. 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. Free energy from the earth Instead of burning fossil fuels, some companies have solved the problem by taking free energy from the ground to keep you comfortable. The process is called GEOTHERMAL heating and cooling.
- 8. Heat Pumps The heart of a geothermal system is the HEAT PUMP which replaces all the components of your old heating and central air conditioning systems We recommend Next Energy geothermal heat pump systems
- 9. Free energy from the earth Free energy (temperature) from the earth is brought to a Heat Pump and used to warm and cool your home completely replacing the expensive oil or gas you currently use. FREE OR $ FORTUNE $
- 10. Free energy from the earth A couple feet down, the ground stays approximately 55 degrees all year long. And 55 degrees is warm in the Winter and cool in the Summer. It is that temperature differential which makes a heat pump work.
- 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. Heat Pump Efficiency A conventional furnace is rated on how efficiently it uses fuel. Furnaces from the 70s were typically around 65% efficient. An average furnace today is 80% while a high efficiency unit may be 90% efficient. That means for every $1 of fuel you put in, you get 80 or 90 cents of heat. Heat Pumps are measured in COP – Coefficient Of Performance which is a measure of how many BTU’s of heat are generated from the electric energy used. A Next Energy Heat Pump, connected to a geothermal field, can offer a minimum COP of 4.0 which translates to 400% efficiency. Because you use free energy from the earth, that means for every $1 of fuel (electricity) you use, you get $4.00 worth of heat.
- 13. Heat Pump Efficiency SEER stands for Seasonal Energy Efficiency Rating , it is used to describe the energy efficiency of air conditioners by blending the BTU output of the air conditioner with the cost of energy used per hour.
- 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. Free Central Air Conditioning In addition to saying “Good Bye” to your oil man, another big benefit is that while you are purchasing an extremely efficient heating system for your home you are also getting a properly sized central air conditioning system, virtually for free!
- 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. All you feel is comfort So, go ahead, set the thermostat to be comfortable. No more wearing sweaters in the Winter because it is too expensive to keep the house at a comfortable temperature – sweaters should be a fashion statement!
- 18. All you feel is comfort The heat pump does the rest by simply reversing the direction the refrigerant flows in the system The refrigerant works as well at warming your home as it does cooling your home.
- 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. 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. 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. The theory of “removing heat” Instead of using outside air which is cold in the Winter and hot in the Summer, a Geothermal system uses the constant temperature in the earth to warm your home in the Winter and cool it in the Summer.
- 23. Methods of extracting energy from the earth To get energy from the earth, you can drill a well, pump water up to the heat pump and 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. Pros and cons of open loop systems Open loop system Pros Generally cheaper to install Only needs two or three wells. Cons Dumps water back into aquifer or soil after use Requires high HP pump = expensive to run Should treat water entering system Pump submerged 100+ feet with relatively shorter life expectancy Needs well drilling truck to repair or replace pump with associated property damage Requires DEC permit and report if failure occurs Unknown environmental impact
- 25. Pros and cons of closed loop systems Closed Loop Pros Warranted 30 years Small, low HP pump at heat pump = low cost of operation Pump can be changed in ½ hour if needed No environmental impact Cons Drilling cost can be higher
- 26. So, how can 50 degree earth temperatures 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. 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. So, how can 50 degree earth temperature replace 1600 degree flames in a furnace That heat (or cold) is then transferred at the second coil in the heat pump which warms, or cools air which then delivered to every room in your home. Finally, the hot air in your home in Summer, or cold air in your home in Winter, transfers it’s energy back to the refrigerant which carries it back to the heat pump coil and back to the earth.
- 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. So, what will it cost? Less than you think, Check out our calculator at : www.integratedgeothermal.com 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. 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. 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: www.integratedgeothermal.com or Integrated Geothermal Hauppauge, NY 631 – 859 - 8805 Geothermal… less than oil or gas. A LOT LESS!
- 33. Give em a break.