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Cool, arent they?
character education
SEER = Seasonal Energy Efficiency Ratio.
It is used to measure the efficiency of the unit.
It is an average of the efficiency over the entire year for heat pumps.
Air conditioners are rated by EER Energy efficiency ratio.
Both are basically derived by dividing the capacity of the unit by the number of watts it averages at standard temperatures
For ease of math …say you have a 2.5 ton a/c that gives a standard capacity of 30,000 BTUs and it uses 3000 watts to do the job.
30000/3000 = 10 so the EER of the unit is 10
30000/2307= 13 so the eer is 13
30000/2142= 14 so the EER is 14
13 vs 14 = 165 watts
At 10 cents per Kilowatt hour we have a whopping 1.65 cents per hour savings so if the system runs 18 hours per day we save 29 cents.
There is actually not a lot of actual difference between a 13 vs 14 ect when you do the actual math but the price differences can “curle your hair” . I live in Ga and most of the power companies that do the energy audits say that 13 is plenty efficient for the average homeowner when cost of equipment and maintainance are taken into consideration. You have to consider that 2 years ago anything 13 seer was considered “high end” and priced as premium over the standard 10 seer which the power companies said was plenty efficient for the average homeowner.
The major difference is that the 13 seer stuff is now considered standard and has few “bells and whistles” While the higher end stuff have lots of goodies added on to make you feel like you are getting something special ( and you may be) but its sort of the difference between the old Chevy and the sportier version. For reliability go low and slow …..for impressing the neighbors go high end and save about 10$ a month on your utility bills while you spend thousands more.
On my central air conditioner, the inside fan will come on normal, but then my outside compressor wont come on until 5 minutes later. Is this normal or should i have it checked? The house seems to be cooling just fine. just the 5 minute delay on the compressor. any suggestions?
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My boyfriend insists on turning off the central air conditioner when we are not home (so from 7am-5pm weekdays) and turns it back on when we are home. Now its broken. It won’t blow out cold air. Could his insistence on constantly turning on and off the AC have broken it?
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