What Temperature Should I Heat My Pool or Spa To?
"I need help figuring out what temperature to set for my new pool heat pump."
Finding the right temperature for your pool or spa isn’t just about comfort. It also affects energy costs and the longevity of your heating system. The ideal temperature depends on your pool use, preferences, and budget considerations. Let’s break it down!
Recommended Temperatures by Pool Type
| Pool/Spa Type | Recommended Temperature | Purpose |
| Lap Pools | 78-82°F | Ideal for exercise |
| Recreational Pools | 82-86°F | All-around comfort and efficiency |
| Therapy Pools | 86-94°F | Relaxation and rehab |
| Spas and Hot Tubs | 98-104°F | Muscle relaxation |
Balancing Warm Water Comfort and Cost
Every degree you raise the water temperature increases energy costs. The cost can vary dramatically based on your climate, pool size, and heater type. If you want more help on specifics, give us a call. Here are some rough estimates to give you an idea of what you're looking at for different types of applications...
| Pool Size (Gallons) | Heat Pump (Annual Cost) | Inverter Heat Pump (Annual Cost) | Gas Heater (Annual Cost) |
| 10,000 | $500 - $800 | $400 - $700 | $1,500 - $2,500 |
| 20,000 | $700 - 1,000 | $600 - $900 | $2,500 - $3,500 |
| 30,000 | $1,000 - $1,500 | $900 - $1,300 | $3,500 - $5,000 |
Keep in mind that spas are even more energy-intensive. Maintaining a spa at 104°F can cost between $30-$100 per month, depending on usage and insulation.
Factors That Will Impact Your Heating Costs
- Heater Type: Heat pumps are more efficient than gas heaters but work best in warmer climates. Gas heaters heat quickly but cost 2-3x more in fuel expenses. Consider an inverter heat pump for precise temperature control and reduced energy waste.
- Insulation: Using a cover reduces heat loss by up to 50%, significantly cutting costs.
- Climate: In colder regions, heating expenses can double compared to warmer climates.
- Usage: If you use your pool/spa daily, maintaining a consistent temperature is actually cheaper than reheating it from cold. Keep pools at 78-82°F for a balance of comfort and cost, and lower spa temps slightly when you aren't using it to minimize energy usage.
Main Takeaways When Choosing Your Perfect Pool Temperature
Choosing the right pool or spa temperature depends on how you use it and how much you’re willing to spend. If cost is a concern, sticking to the lower end of the recommended range and using a pool cover can cut heating costs by up to 50%. If comfort is the priority, expect higher energy bills, but investing in the modern tech advancements of heat pumps can help balance the expense.
So, what’s your priority? Cost savings or ultimate relaxation? Finding the right temperature is all about striking that perfect balance!
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