Energy Efficiency: Heating and Cooling
Your air conditioner and/or heater contributes to the greatest amount of energy consumption and ultimately you end up paying for it.
Enalasys is working with utilities to create unique programs that offer residential home owners and non-residential commercial businesses special rebates for updating and improving the efficiency of your home energy unit. Getting your system into shape can improve your home or business comfort, air quality and reduce your monthly energy cost.
Source: Residential Energy Consumption Survey, 2001, Energy Star Website
Average price of electricity is 9.5 cents per kilo-watt hour. Average price of natural gas is $12.42 per million Btu.
* “Other” represents an array of household products, including stoves, ovens, microwaves, and small appliances like coffee makers and dehumidifiers.
Quick Energy Facts
- Heating and Cooling account for up to 50% of your Home Energy Bill
- Switching to a more efficient air conditioner or heating unit can save you anywhere between 7 and 23 percent of your monthly energy bill depending on the size and efficiency of the unit you choose.
- Investing in a more efficient air conditioner or heater will save you more in the long term.
- About one-seventh of all the electricity generated in the US is used to air condition buildings.*
*Source: Annual Energy Outlook 2007 Report #:DOE/EIA-0383(2007)
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What is HVAC?
HVAC stands for Heating Ventilation and Air Conditioning.
What is SEER? Seasonal Energy Efficiency Ratio
A higher SEER number is better. The SEER will be listed prominently on the yellow-and-black Energy Guide. The SEER is defined as the total cooling output in British thermal units or BTU provided by the unit during its normal annual usage period divided by its total energy input (in watt-hours during the same period).
What is EER?
EER stands for Energy Efficiency Ratio. It's the simple output of the equipment divided by the input. Again, a higher EER number is better. EER will also be listed prominently on the yellow-and-black Energy Guide and is an efficiency rating known as the energy efficiency ratio.
What is HSPF?
Heat pumps have a rating indicated known as Heating Seasonal Performance Factor or HSPF and a higher number is better. HSPF is a measure of a heat pump's energy efficiency over one heating season. It represents the total heating output of a heat pump (including supplementary electric heat) during the normal heating season (in Btu) as compared to the total electricity consumed (in watt-hours) during the same period.
Replacing Old Equipment: Why it is important?
A central A/C system is designed to last 12-18 years, so in some cases savings and reliability are limited due to equipment age. Your A/C contractor can help you decide when it is time to replace your old equipment with high efficiency equipment before your system breaks down and leaves you in the heat.
Duct Testing: Why Is It Important?
The ducts that are part of central heating and cooling systems offer one of the best opportunities to increase your energy efficiency, increase your comfort, and manage your energy bills. Studies indicate that 28%-35% of the heated or cooled air is lost-along with the money spent to heat or cool that air-through leaky ducts. Properly sized, installed, and sealed ductwork will make your heating and cooling systems significantly more efficient.
Refrigerant Charge and Airflow: Why is it important?
A system refrigerant check-up is a recommended service that should be performed when the equipment is first installed and during annual system check-ups. A refrigerant charge should be conducted if the system check indicates that one is needed. Once the system has been properly charged with refrigerant and has good airflow across the indoor coil, and assuming there is no damage to the duct system, only basic service such as changing filters and cleaning the outdoor unit annually should be needed to maintain the system operation at peak performance levels.
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