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What Can You Expect From a Solar Pool Heater in New York?
We have many happy customers in New York. If it is sunny enough to have a pool it is sunny enough to heat it with solar energy
The curves above represent a full sized solar heater for a typical 16x32 pool with 25% shading in New York, New York. We've plotted the daily maximum pool temperatures. Note we size systems higher if you won't use a cover. We could go even higher. As you can see a cover helps a lot but solar well sized can alone do what a cover can do without of course the hassle and look of the cover. A pool with a full sized solar heater and cover will peak out daily 18 degrees higher than an unheated pool. Solar bumps the daily peak temperature of a covered pool about 10 degrees. Solar bumps the daily peak temperature of an uncovered pool about 10 degrees as well. Notice that in the time of year when we can't heat the pool the daily air temperature is peaking at something like 62 degrees, not exactly swimming season temperatures. I don't know about you but I'm not walking around outdoors wet when it is that cold! Is it worth heating with gas to extend the season into April? Consider pool heating will be very expensive at this time and pool use very low. Alas, the realities of pool ownership.
All these curves are based on a typical meteorological year which is hour by hour values of air temp, solar radiation, wind levels and humidity based on 10 years of real weather data but the "tmy" isn't average weather data. It is typical weather generated using a complex algorithm and perhaps manually to some extent. This is the kind of graphical output we've been telling the Enerpool folks we wanted for years but Enerpool and all the other solar software out there only tell you the payback period. We don't care about payback period (much). We know solar pool heating's economic numbers are good and payback period is fast. What we're interested in is the daily peak pool temperature (because the average doesn't mean anything to us) over what extended season. These plots show you don't need a gas heater if you can use a solar heater and a cover.
The above curves represent a typical 16x32 inground pool with a little shade (25%) heated or not with an aged solar cover and an 8) 4x12 solar collector system. We assumed the cover would always be on the pool 20 hours a day and for 4 hours the cover would come off (for the 2 plots with covers) and moderate pool activity would occur. We created these charts using Enerpool solar simulation software. We do not have confidence in any other computer program like this. Click here to learn about this software and its history. You can even download the software yourself and put it to use if you're an engineer type.