How Long Does It Take To Heat A Pool With A Solar Cover. Always oversize when purchasing a pool heater. Young children, the elderly and others often need 80 degrees f or warmer water, however, and hydrotherapy calls for warmer water, too.
Although 78 degrees f to 82 degrees f takes in about everyone, how warm you should keep your pool actually depends on personal preference. ______ pounds of water / btu size = the hours it takes to raise the water temperature by 1. The exact time needed to change the pool temperature will vary based on evaporation rate, convection losses, thermal radiation losses and conduction losses (explained more below).
Determine the time required to increase water temperature by 1 degree f.
Other than heating pools during the day, solar blankets also help the pool retain heat by protecting the water from cool night winds and air. So, 8.34 btus raise one gallon of water by 1 degree f. The solar heaters get about 4 hours of some sun on a good day. You can get one for around $0.30 a square foot, so covering an average size pool costs about $130.