The required pool heater load is established by calculating the energy necessary to provide the desired pool heat setting in a chosen time.
For outdoor pools with large surface areas it is important to also consider convective heat loss, which will significantly affect the required energy demand. Where the average wind speed during heat is above 16 km/hr Raypak should assist with determining required energy input.
To calculate the required energy from the pool heater the following equations should be used:
| Outdoor Installations | Indoor Installations |
kW = (V x AT x 1.16) + (As x AT x W x 0.06) |
kW = (V x AT x 1.16) t |
| Where: (Legend for above equations) | |||||||||
| V | Volume of pool in m3. | ||||||||
| AT | Required temperature rise in degrees C | ||||||||
| As | Surface area of the body of water in m2 | ||||||||
| t | Required heat up time from cold in hours. Recommended is 24 hours | ||||||||
| W | Wind factor dependent on average wind speed as determined below:
|
||||||||
Once the required pool temperature is reached the pool heater energy demands will fall substantially and only maintenance heat will be required.
The ongoing energy requirements of your pool can be cut dramatically through the use of a pool cover. This is strongly recommended in areas where low overnight temperatures are experienced.
Pool & Spa HeatersCommercial Pool & Spa heaters |