Heated Water temp ?

[Piney]

Greetings--

I'm curious-- what temp diferental should I expect to see between the pool water and the heated water coming out of the jet ?

 

[Poolsean]

Under normal operating conditions,

Gas Heaters should show a 5-9 degree split
Heat Pumps should show 2-5 degree split.

 

[mas985]

Depends on the BTU rating of the heater and flow rate in the pipe.

Degrees Rise = BTU Rating * Heater Efficiency / (60 * GPM * 8.34)

If you need help with GPM, let me know.

 

[Piney]

Depends on the BTU rating of the heater and flow rate in the pipe.

Degrees Rise = BTU Rating * Heater Efficiency / (60 * GPM * 8.34)

If you need help with GPM, let me know.

AGHHHH!! Mathmatics...... :lol:

Where would one find the Heater Efficency variable ?

 

[mas985]

It should be listed in the manual or you can look it up on the web. If you cannot find a reference then just use 80%. It is probably close enough.

GPM can be approximated as well by the pump's head curve. You can pick somewhere in the middle just to get an idea of the numbers you are dealing with. Another good approximation for head loss is about 3 times the filter PSI reading. Then look up the GPM on the head curve of the pump.