ABOUT SSL CERTIFICATES
Pleatco Pure Spa Filters
Baleen Filters
RJ Filtration Pool and Spa Filters
Berlin Gardens Poly Furniture
Online Payments



You are here: Home > Spa and Leisure 101 > Spa Heating

Remember to: Change your filters every six months
and clean them monthly for clear water and faster heat times
.


All About Spas carries Pleatco, Master Spa and Baleen hot tub and spa filters.
Go to our Filters by Size section for directions on how to find the correct filter.

To clean your filters we recommend Brilliance for Spas Filter Cleaner and the Filter Flosser.



Basics of Heating Mechanics

One of the first questions we get asked is, "how long will my spa take to heat up?" Well, the answer depends upon a lot of factors. Regardless of these factors, keep in mind it will not heat up instantly.

he first thing that a spa's heating time is dependent upon is what type of electrical hook up it uses. This part will sound counter intuitive. A person will normally think that if a spa is hooked up to 110 Volts it is more energy efficient because it uses less power. However that is generally not the case. A 110 Volt spa will generally take longer because they generally rely on using both heat from the pumps and the spas heater to heat the water. This is a lengthy process because the heater and the pumps are using a small amount of power to heat a large body of water.

Where as a 220/240V spa will use a more powerful heater in conjunction with a small constantly running circulation pump to heat the water. These are generally more efficient because the circulation pump keeps the water running through the heater without the use of the spaʼs main pumps. This allows the heater to gradually adjust the waterʼs temperature versus the 110V heater that will wait until the water temperature drops to a certain point and will then turn all the pumps and the heater on to bring up the water temperature.

The next factor associated with heating is the insulation in the spa. All manufacturers use foam on the underside of the spa to retain heat. However, the amount of foam varies between manufacturers. Some use a little and some use full foam. The ones who use the smaller amount of foam will usually supplement the foam with an insulating wrap that functions similar to a space blanket. It has been our experience that this set up will retain almost all of the spas heat and is very effective. In fact most spas that use this system usually have to have vents in the side of the spa to allow some heat to escape; this prevents the water temperature from rising above the desired temperature.

As a rough, general guideline a spa using 220V will heat 6-8 degrees an hour and one running on 110V will be slower, about one degree an hour. Keep in mind that different spas will heat at different rates.

*Note: Make sure not to set the spa's temperature higher than 104 Degrees, which is the maximum setting on most spas. That is the highest safe temperature. Also keep in mind that the higher the temperature the shorter the time that you should stay in the spa. If you wish to stay in longer than 30 minutes, sit on the side of the spa and cool off for 5-10 minutes before re-entering the water. You will need to do this every 30 minutes.
Related topics: