How do I know if my heater is working?

beantownace

Well-known member
Aug 4, 2015
83
Boston, MA
I have a heat pump attached to the pool but the temperature slowly comes up I think but not sure if its working well. How can I check if its really working?

I have an infared temp laser but the fan is in the shade its tough to tell if there is a 10 degree diff.
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
21,199
Northern NJ
Pool Size
35000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
How many BTUs is your Aquacal HP?

Your HP is going to raise the water temp by 1/2 to less then 1 degree an hour depending on the air temperature. If the temperature is slowly coming up then it is working fine. They either work fine or don't work at all.