If you spend the extra money and install a high efficiency variable speed pool pump, how long will it take for your new pump to pay for itself?
If you are looking for the quickest way to calculate your savings, you should look the
Cost Per Hour
Yearly Cost - 8 Hour Filter Cycle
Yearly Cost - 10 Hour FIlter Cycle
Yearly Cost - 12 Hour Filter Cycle
Find your pool size and you will see how much flow is required to pump the entire volume of your pool though your filter in one twelve hour cycle.
If you have a raised spa, you will want to increase the RPM by 200 - 400 RPM to get a nice overflow. If you have other water features such as Rockfalls, Sheer Descents or Laminar Jets, you will also have to account for the flow required by those features.
Most of the time we also program a higher RPM for two hours per day while the cleaner is operating . Even with these higher speeds, the overall cost of operation is still significantly less than the older, less efficient pumps.
Cost Per Hour
12 Hour filter cycles
The cost difference between a standard 2.0 HP pump and a variable speed pump is $750.00. You will recover this cost difference in about 16 months. After that, it will continue to pay you back dividends month after month.
24,000 Gallon Pool, 1.5 HP Pump Annual Savings: $462.09 Payback Time: 21 months
If you have a 24,000 gallon pool with a 1.5 HP pump that is running 8 hour filter cycles, you are currently spending $621.96 per year on your energy bill. If you go with a variable speed pump you will spend about $159.87 per year on your energy bill. That is an annual savings of $462.09!
The cost difference between a standard 1.5 HP pump and a variable speed pump is $800.00. You will recover this cost difference in about 21 months. After that, it will continue to pay you back dividends month after month, for the entire life of the pump (normally at least ten years)
We will generally also program the pump to a slightly higher speed for 2-3 hours per day to create a "cleaning cycle" to coincide with the run time on the automatic pool cleaner so that the skimmers and the main drain more effectively pull in the debris.
With a variable speed pool pump, there is a balance between economy and performance.
If you choose maximum energy savings, you will probably save 75% or more on your pool energy costs, but your pool may not stay as clean. If you choose maximum performance and run the pump at higher speeds, you will keep you pool as clean as you did with your old single speed pump, but you will still save 40 - 50% on your pool energy costs. Either way . . . YOU WIN!!
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