A few simple factors influence heating time, including:
- The temperature of the water when you fill the spa
- Outdoor air temperature
- The size of your hot tub
- The quality of insulation
On average, an Arctic Spas® hot tub warms up at a rate of about one to two degrees per hour. If you’re filling from a garden hose at around 50°F (10°C), most spas will be ready for soaking in roughly 8 to 12 hours.
Colder weather can extend that initial warm-up slightly, but once your spa reaches its ideal temperature, maintaining heat becomes far more efficient than reheating from cold. Thanks to Arctic Spa’s thoughtful insulation design and FreeHeat™ system, your spa holds warmth beautifully — even through winter.
Heat That Works Smarter, Not Harder
At Arctic Spas®, comfort starts with smart engineering. Every spa is designed to use energy wisely, capturing warmth that would otherwise go to waste and putting it back to work for you.
FreeHeat™ is Arctic Spas’ patented insulation system that recycles heat created by the spa’s own equipment. Instead of allowing that warmth to escape, full-perimeter insulation and a fibreglass-backed shell help circulate and retain it inside the cabinet. This reduces reliance on the heater, lowers operating costs, and helps your spa stay consistently comfortable — no matter the season.
The result is a spa that feels reliable, efficient, and ready whenever you are.
How the Arctic Spas® App Helps You Heat Smarter
The Arctic Spas® app gives you easy, remote control over your spa, making it simple to manage water temperature and adjust settings from anywhere.
Instead of guessing or leaving your spa hotter than necessary, you can fine-tune temperatures based on how and when you actually use it. Heading home after a long day? Turn up the heat before you arrive. Planning a quiet evening in? Adjust your settings for comfort without wasting energy.
During colder months, the app offers extra peace of mind. You can quickly check system status, confirm everything is running smoothly, and make changes if temperatures drop unexpectedly — all without stepping outside.
Simple Ways to Speed Up Heating
Even with excellent insulation, a few easy habits can help your spa heat faster and more efficiently:
- Keep the spa covered with a Mylovac™ cover during heat-up to reduce heat loss.
- Clean your filters regularly to maintain proper water flow.
- Maintain correct water levels so pumps and heaters work efficiently.
- These small steps can noticeably shorten warm-up time, especially in colder weather.
The Bottom Line
Heating time isn’t just about how fast your spa warms up — it’s about how well it maintains that comfort once it gets there. With FreeHeat™, full-perimeter insulation, and the Arctic Spas® app working together, your spa is designed to deliver steady warmth, lower energy use, and dependable performance year-round.
It’s a comfort you can count on, season after season.
