skip to Main Content
Reducing the Time to Heat a Spa

Air blowing into your spa while it is being heated will very often neutralize, or partially counteract, the heat being put into the spa by the heat pump; this added heat loss equates to increased time to bring your spa to desired temperature.

When bringing a spa to temperature:

  • Isolate water flow to spa (with spillover spas, there should be no spillover)
  • Be sure to turn off the air blower
  • Additionally, air induced through the spa jets should also be eliminated, during warm-up, whenever possible. Induced air can be temporally halted by covering or plugging the air induction tube opening. (The induction tube can generally be found near the perimeter of the spa area, at an elevation slightly above grade; when inducting air, a gurgling sound can be heard from the tube opening)

If your heat pump is being used to only heat a spa, the POOL thermostat can be used as a setback control:

  • Simply set the pool control at a point 10-15ºF below desired spa heat temperature and select the pool thermostat;
  • Permit spa circulation pump to operate
  • This method allows the spa–when not in use–to be held at a heated temperature, but somewhat lower than normal spa-use temperature
  • If using this method, and when spa is not occupied, one would likely want to blanket the spa. Using spa setback will result in reduced warm up periods over full-cold start ups
Back To Top