Besides, my son told me today that his employee discount isn't all that much!
First, I've lowered my expectations regarding comfort in favor of being able to pay my electric bill when it comes due every month, i.e., I turned up the t-stat to 77 and it pretty much maintains the temperature at 77-78 degrees. I sit and/or sleep under ceiling fans most days because my comfort level is 74-75 degrees during the day... I prefer around 70 at night, but can't afford the electric bill.
Second, it's been a relatively mild, dry summer... ODDB has been <92 degrees most days with lower than normal rainfall all year, thus lower than normal humidity.
I thought we'd been over and over and over this 4-ton issue a number of times in various threads and the only reason I was considering a 3-ton iQ Drive was because of it's ability to perform at 118% of nominal capacity.
The only "official" Manual J load calc done by the Broan dealer confirmed that 4-ton was the right size for any dual stage system other than the iQ Drive.
If i was going with the iq drive and want it cold i would go with the 4 ton as they ramp down to about 40 % of capacity ,ask your son to find you a differnt contractor he should know the good ones
So your current equipment will maintain 75, but you choose to set it higher in order to save on the electric bill? Going back to the whole SEER/EER discussion, realize the 17+ SEER equipment isn't going to do much better than 14SEER when it's 95 outside. I can't see how going 20+ SEER will save over a 17SEER, since most manufacturers of high SEER equipment hide their EER ratings..
Does your utility offer time of use or variable peak rates? With time of use rates you give up some comfort during peak hours on weekdays in order to be more comfortable on nights/weekends. Our utility smarthours program has peak hours 2-7pm weekdays where electricity is about double the normal price. The other 19 hours per day and all weekend are 1/2 the normal price. We keep our house 75 by day, 80 from 2-7 weekdays, and 72 at night. Reduces our power bill by about 1/4th compared to normal rates, summer electric bill runs about $120 for our 1587sqft house for 4 people. If I could get the kids to keep the door shut that would save me another $20/month. I've not seen where you have mentioned other household members or what hours you work, but people who work 9-5 M-F and don't get home until 5:30pm or so come out really well on the program since they would only be home for 1.5hrs of the peak power. Utilities sometimes don't advertise time of use rates, but they are in the rate schedule on the utility website. It's worth a look, peak times and rates vary WIDELY for each utility.
They tried load control switches in Oklahoma where the utility had control of the condenser. Didn't go over to well with consumers. They have switched to a new program where it's 100% price based, no mandatory control. The FPL peak/off peak may still make sense for you, you just have to run the numbers.
Dropping the temperature down at night to be comfortable doesn't hurt your bill as much as you might think. The A/C runs more efficiently since outdoor temps are lower, capacity goes up while power use goes down. Ductwork losses are less since the attic is relatively cool. If your house has a lot of thermal mass it might even be able to hold some of the cool until the peak of the day. If FPL allows you to monitor use hourly use online you could verify how it affects your power bill.
Just pulled FPL's rate schedule.
What a mess, I can't figure out what they charge per KWH or even when the peak hours are !!
NO CAN DO ! !!
FOR NEARLY EVERY1.!.!!
Thanks dan sw fl for jogging my memory. Now that I recall, it was in a "past life" at another location that I opted for the FPL "On Call" discount... I was working as a retail auto parts store manager at that time, most days from noon to 9PM. So I didn't care if they controlled my A/C and water heater during those hours!
Cooling Standard: 80_F (27_C) db 67_F (19_C) wb indoor entering air temperature and 95_F (35_C) db air entering outdoor unit.