Presentation on theme: "Department of Energy Energy Savers PowerPoint: Heating and Cooling 4 of 12."— Presentation transcript:
Department of Energy Energy Savers PowerPoint: Heating and Cooling 4 of 12
This 12 part PowerPoint series is taken directly from Energy Savers Booklet, Tips on Saving Energy & Money at Home, U.S. Department of Energy
Contents 1. Save Energy and Money Today 2. Your Home’s Energy Use 3. Insulation and Sealing Air Leaks 4. Heating and Cooling 5. Water Heating 6. Windows 7. Lighting 8. Appliances 9. Home Office and Home Electronics 10. Driving and Car Maintenance 11. Renewable Energy 12. References
Heating and Cooling This presentation will show you how easy it is to reduce your energy use at home. Easy, practical solutions include tips you can use, throughout your home—from the roof, walls, and insulation that enclose it to the appliances and lights inside.
Heating and Cooling Reduce energy demandCut amount of resources neededCreate less greenhouse gas emissionsReduce utility bills
Heating and Cooling Costs $$$
Heating and Cooling Emissions Heating and cooling systems emit 150 million tons of carbon dioxide → global climate change 12% of nation’s sulfur dioxide → acid rain 4% of nitrogen oxides → acid rain
Household Heating Systems Fuel Type
Heating and Cooling Strategy Proper equipment maintenance Appropriate insulation and air sealing Proper thermostat settings Cut energy use and reduce environmental emissions from 20% to 50%
Heating and Cooling Tips
Clean or replace filters on furnaces once a month or as needed. Furnace filter
Heating and Cooling Tips Clean warm-air registers, baseboard heaters, and radiators as needed; make sure they are not blocked by furniture, carpeting, or drapes.
Heating and Cooling Tips Bleed trapped air from hot-water radiators once or twice a season. Place heat- resistant radiator reflectors between exterior walls and the radiators.
Heating and Cooling Tips Turn off kitchen, bath, and other exhaust fans within 20 minutes after you are done cooking or bathing; when replacing exhaust fans, consider installing high-efficiency, low-noise models. Low noise kitchen exhaust fan
Heating and Cooling Tips During the heating season, keep the draperies and shades on your south-facing windows open during the day to allow the sunlight to enter your home and closed at night to reduce the chill you may feel from cold windows.
Heating and Cooling Tips During the cooling season, keep the window coverings closed during the day to prevent solar gain.
Select energy-efficient products when you buy new heating and cooling equipment. – Furnaces ≥ 90% AFUE – Air conditioners ≥ 14 SEER Select energy-efficient products when you buy new heating and cooling equipment. – Furnaces ≥ 90% AFUE – Air conditioners ≥ 14 SEER Long-Term Savings Tips AFUE = Annual Fuel Utilization Efficiency SEER = Seasonal Energy Efficiency Ratio
Duct System Hidden system - ducts
Ducts Uninsulated ducts: Lose heat Waste energy Waste money
Leaky Air Ducts
Duct Tips 7 easy and effective ways to save energy with your duct system
Duct Tips Can you find the opening?
Duct Tips UL-181 A FOIL
Duct Tips Remember that insulating ducts in the basement will make the basement colder. Water pipes and drains in unconditioned spaces could freeze and burst in the space if the heat ducts are fully insulated
Duct Tips If your basement has been converted to a living area, hire a professional to install both supply and return registers in the basement rooms.
Duct Tips Be sure a well-sealed vapor barrier exists on the outside of the insulation on cooling ducts to prevent moisture buildup. When doing ductwork, be sure to get professional help
Duct Tips Install a carbon monoxide (CO) monitor to alert you to harmful CO levels if you have a fuel-burning furnace, stove or other appliance, or an attached garage.
Long-Term Savings Tip You can lose up to 60% of your heated air before it reaches the register if ducts are not insulated and they travel through unheated spaces.
Heat Pump Tips Do not manually set back the heat pump’s thermostat if it causes the electric resistance heating to come on. Clean or change filters once a month or as needed
Consider installing an energy-efficient heat pump system if you heat with electricity you live in a moderate climate Long-Term Savings Tip
Solar Heating and Cooling Insulated windows
Solar Heating and Cooling Passive solar cooling techniques: Carefully designed overhangs Windows with reflective coatings Reflective coatings on exterior walls Careful site orientation Consult an architect familiar with passive solar techniques Passive solar cooling techniques: Carefully designed overhangs Windows with reflective coatings Reflective coatings on exterior walls Careful site orientation Consult an architect familiar with passive solar techniques
Solar Tips Keep all south-facing glass clean Make sure that objects do not block the sunlight shining on concrete slab floors or heat- absorbing walls
Natural Gas and Oil Heating Before purchasing a new heating system – Talk to your local utility or state energy office Evaluate information on the latest technologies – Select an efficient system
Long-Term Savings Tip Install a new energy-efficient furnace – ENERGY STAR® – EnergyGuide label
Programmable Thermostats Hot Winter Tip Using a programmable thermostat, you can automatically turn down your heat at night or when you are not at home. Cool Summer Tip In the summer, you can save money by automatically turning your air-conditioning up at night or when you are at work.
Air Conditioners Bigger is not necessarily better
Cooling Tips Use whole-house fans Attic side, with a cover for the whole-house fan
Cooling Tips Use whole-house fans Set thermostat as high as is comfortably possible in the summer
Cooling Tips Use whole-house fans Set thermostat as high as is comfortably possible in the summer Avoid setting thermostat at a colder setting than normal when you turn on your air conditioner
Cooling Tips Consider an interior fan
Cooling Tips Consider an interior fan Avoid placing lamps or TV sets near your air-conditioning thermostat
Cooling Tips Consider an interior fan Avoid placing lamps or TV sets near your air- conditioning thermostat Plant trees or shrubs to shade air conditioning units but not to block the airflow
Long-Term Savings Tips
Landscaping Well-placed plants deliver shade, and help reduce your energy bills
Buildings and Trees Buildings and trees are natural partners
Landscaping Carefully positioned trees can save up to 25% of the energy a typical household uses
Landscaping A lattice or trellis will shade the home’s perimeter
Summary Carefully select Heating and cooling equipment Duct system Landscaping Carefully select Heating and cooling equipment Duct system Landscaping