How Long Does a Hot Tub Take to Heat Up : The Ultimate Guide

If you own a hot tub, you already know how long a hot tub takes to heat up. However, many new users ask this question that how long does it take to heat up. This is because hot tubs have multiple models and sizes and different models cover a different time span to heat up.

However, no matter what type of hot tub and model you have, it would be best to know the duration a hot tub takes to heat up. It will help you use the hot tub accurately and be able to raise and maintain the water temperature at a moderate and the ideal level before using the hot tub. China Royal Spa is here to help the users in this regard. So, keep on reading and know how long does a hot tub take to heat up.

There is not an accurate answer to this question. An average hot tub takes 4-8 hours to heat up to a moderate level.  However, the hot tub can take longer or shorter than this, depending upon the model, brand, energy efficiency, and hot tub’s insulation. Apart from these factors, multiple other factors could affect the time of heating the hot tub.

Factors that Affects the Duration of Heating the Hot Tub

The duration of heating the hot tub could be different for different hot tubs. However, there are certain factors that affect the time span regardless of the model and brand of the hot tub.

The Outside Temperature

The outside temperature of the hot tub affects the duration of heating the hot tub. If the external environment’s temperature is too low, the hot tub will take more time to heat up. However, if you have installed the hot tub in a moderate temperature area, it will take relatively less time to heat up and reach at the moderate and ideal temperature. Additionally, the outdoor hot tub takes longer time to reach at the perfect temperature than the indoor hot tub.

Size of the Hot Tub

The hot tub size is also an essential factor to determine the duration of the hot tub heating. The larger the size, the more time it will take to reach at the ideal temperature. The small hot tubs take relatively less time to heat up than the large sized hot tubs.

The Power of the Heater

The heater of your hot tub also plays a vital role to raise the water temperature. If the heater is powerful and efficient, it takes less time to reach at the moderate and ideal level. However, if you get a hot tub that is equipped with a low quality heater, the heater will consume more energy and rakes more time to reach the ideal level.

The Hot Tub Insulation

The hot tub insulation is vital to raise and maintain the water temperature at the ideal level. If the hot tub does not have a high-quality and efficient insulation, it takes more time to increase the water temperature and decrease it quickly. However, if the hot tub has a high-quality insulation, it takes relatively less time to raise the water temperature and maintain the temperature at the moderate level for a longer time duration.

The Hot Tub Cover

The hot tub cover plays a vital role in increasing the water temperature and maintaining it for a longer time. If you put a high-quality cover on your hot tub, it helps the hot tub to increase the water temperature quickly and maintain it for a longer time. Therefore, if you want to raise the temperature and maintain it for a long time, get a high-quality hot tub cover.

How to Heat Up the Hot Tub Fast?

No matter which brand, model and size of the hot tub you get, there are always ways to heat up the hot tub at a fast speed. Do you want to know what are those ways and how can you increase the hot tub temperature quickly? China Royal Spa has enlisted all the factors and ways that can contribute to heat up the hot tub fast. Following are some ways to raise the hot tub water temperature quickly.

Get a Well Insulated Hot Tub

If you want to raise the hot tub’s water temperature at a fast speed, China Royal Spa suggests getting a high insulated hot tub. The hot tub’s high-quality insulation helps raise the water temperature quickly and maintain it for a long time. The low quality insulation does not maintain the water temperature for an extended time and once the hot tub decreases the temperature, it will take more time to heat up  and to keep the water temperature. So, if you are a new user and planning to get a hot tub, China Royal Spa suggests you to have a well insulated hot tub.

High-Quality Cover

The cover is also essential to increase the water temperature of the hot tub quickly. Multiple hot tub covers are available in the market and you can choose what suits you the most. However, if you want to heat up the hot tub quickly and maintain the hot tub temperature for a long time, China Royal Spa suggests having a high-quality hot tub cover and putting the cover on the tub while heating up the hot tub.

The Heating System

The heating system is most essential to determine how long does the hot tub take to heat up. If you want to raise the water temperature quickly, get a hot tub with a high-quality and efficient system. Moreover, if you are planning to install the hot tub in freezing weather, try to be more considerate about the heating system and get the most efficient and reliable one.

Keep the Hot Tub On Even When Not in Use

Keeping the hot tub on or off also determines the duration a hot tub takes to heat up. If you turn off the hot tub, when not in use, it will decrease the water temperature, and the next time you turn it on, it will take more time to reach at the ideal and moderate level however, if you keep the hot tub on when not in use, it maintains the water temperature and takes less time to heat up.

Keep the  Outdoor Hot Tub in an Enclosure

The outdoor weather of the hot tub also determines how long does a hot tub takes to heat up. If you have installed the hot tub in an outdoor area and wanted to quickly raise the water temperature, China Royal Spa suggests you put the hot tub in an enclosure. The enclosure will save the hot tub from the climatic effects and helps it to increase the temperature quickly.

Turn on Every Jet and Water Feature in the Hot Tub

Turning the jets on will also help in increasing the water temperature quickly. If you turn on every feature and water jet of the hot tub, it will improve the heat circulation and increase the water temperature quickly. However, before turning the hot tub on, make sure that it has enough water. s

Does a Hot Tub Heat Faster With Jets On?

The jets are one of the most essential features of the hot tub. They give the users a powerful and profound massage to increase the level of comfort and relaxation. Moreover, the jets could play a vital role in heating up the hot tub faster.

If you want to increase the water temperature quickly, turn on the hot tub jets, turning on the jets will circulate the water in the hot tub, move it around and helps in dividing the temperature evenly. So, apart from giving you the ultimate massage and hydrotherapy, the jets are vital to heat up the hot tub faster.

However, before turning the hot tub jets on, make sure that the hot tub has sufficient water. Otherwise, it will damage the function of the hot tub. Many users think it is ok to turn on the hot tub’s jets as soon as the water touches the first water jet. However, it is not a good idea and could damage the function ad life of the hot tub. Moreover, the jets will not give you the ultimate massage and will not help you in increasing the water temperature, if they are not fully submerged in the hot tub water.

What Happen If You Keep the Jets Off?

If you keep the hot tub jets off, the hot tub will take more time to heat up because the heat will not be circulated evenly. Keeping the hot tub jets off while heating it up will create the pockets of cold water and the heat will not spread evenly to give the users a nourishing and soothing massage and hydrotherapy.

Why a Hot Tub Takes Too Long to Heat Up?

An average hot tub takes 4-8 hours to heat up and reach at the specific level; and However, if your hot tub is taking more time to reach the particular level, it may have the following factors.

The Climate is too Cold

The outside climate and weather could be the reasons if your hot tub takes a long time to heat up and reach at the ideal level. In an extremely cold weather, the water temperature will be too low, and the heating system of the hot tub will take a long time to take the water temperature to the ideal level.

The Poor Insulation of the Hot Tub

The poor insulation of the hot tub could be the reason if your hot tub is taking more time to reach at the ideal level. If the hot tub’s insulation will be low in quality, it will lose the heat soon after increasing the temperature and ultimately the hot tub will take more time to heat up and reach at the ideal water temperature.

The Low Quality Heating System

If the hot tub is taking a long time to heat up and to reach at the ideal level, the low quality heating system could be the reason behind the longer duration. Therefore, you should always get a hot tub with an efficient and powerful heating system.

The Low Quality Hot Tub Cover

The quality of the cover is also essential in determining the duration a hot tub takes to heat up. If your hot tub is taking a long duration to heat up and to reach at the ideal water temperature, your hot tub cover could be low in quality. If the cover quality will be lower the hot tub will lose the temperature soon after gaining it and will take a long time to reach at the ideal level again.

The Size of the Hot Tub

The size of the hot tub determines the duration a hot tub takes to heat up. The large sized hot tub will take a long time to reach at the ideal level. So, if your hot tub is large in size, it will take more time than the regular hot tub to arrive at the perfect level.

How to Increase the Energy Efficieny of the Hot Tub?

If you want to reduce the running cost of the hot tub and want that your hot tub reach at the ideal temperature in a short time, there are some ways that could help you in saving and maintaining the energy cost of the hot tub. China Royal Spa suggests you the following measures to increase the energy efficiency of the hot tub.

Always Use a Cover

If you want to save energy, always put a cover on your hot tub. Moreover, it would be best if you keep a high-quality cover to maintain the water temperature. Many hot tub users do not consider this vital, but it is one of the most vital factors that helps in maintaining the water temperature of the hot tub. Multiple cover designs are available in the market and you can choose what suits you the most. You can mix and match the color and the design of the hot tub cover with the hot tub and installation area. However, you should always prefer a high-quality cover for the energy efficiency.

Keep the Hot Tub in a Shielded Area

If you live in a cold weather area, the snow and low climatic temperature will decrease your hot tub water temperature rapidly and your hot tub will use a lot of energy to increase and maintain the water temperature. However, if you want to save energy of the hot tub in such area, keep your hot tub in a shielded area. The shield will help the hot tub to increase the water temperature rapidly and maintain it for a long time. Therefore, it helps in saving the energy and reduce the running cost of the hot tub.

Set the Thermostat on the Lower Level

Many users think they should either keep the water temperature at the highest level or turn it off completely. China Royal Spa suggests to keep the thermostat on the slightly lower level to save the energy.

Keep the thermostat on the lower level will help you when you are away for a while. If you are going on vacations for a few days, China Royal Spa suggests not to turn it off completely; instead, you can lower the thermostat.

Don’t Turn  Off the Hot Tub Frequently

Many users think that they should turn off the hot tub ultimately to save the energy. However, the fact is quite contrary to it. If you want to save the energy, avoid turning it off quite too often. If you do so, it will decrease the temperature and then consume a lot of energy to increase the water temperature. Additionally, if you turn the hot tub off and then turn it on to raise the water temperature, the hot tub will take long time to reach at the ideal temperature.

Some FAQs About How Long Does a Hot Tub Take to Heat Up

How Long Does a Hot Tub Take to Heat Up from the Cold?

Many new users ask this question that how long does a hot tub take to heat up from the cold. The answer to this question depends on multiple factors such as weather, hot tub size and the insulation of the hot tub. However, if the weather is sunny and warm and you want to increase the hot tub temperature to the 100 degrees. Your hot tub will take approximately 4 hours to reach at the 100 degrees. If the outside weather is cold, the tub will take more time to arrive at the 100 degrees.

How Long Does a Hot Tub Take to Heat up for the First Time?

If you have purchased the hot tub and want to increase the water temperature to the ideal level for the very first time, the hot tub will take 3-8 hours to reach at the ideal level.

Why the Hot Tub is Heating Up Slowly?

If your hot tub is heating up slowly, there could be multiple reasons behind it. However, dirty filters could be the reason if your hot tub is heating up slowly. To solve the issue, remove the filter of your hot tub and reinstall them after cleaning them properly.

How Long Does a Hot Tub Take to Increase the Temperature 5 Degrees?

If you want to raise the water temperature of the hot tub 5 degrees. It will take one hour to raise the water temperature 5 degrees.

Does a Hot Tub Heat Up Faster With Jets On?

A hot tub always heats up faster with jets on because it will circulate the temperature evenly in the water of the tub. So, if you want to raise the temperature quickly, always heat it up with the jets on.

Should a Hot Tub Leave on All the Time?

Many new users get confused about whether they should turn off the hot tub or they should keep it on 24/7. The answer is the users should hold the hot tub on 24/7. However, they can set the thermostat on a lower level to save the energy.

How Much Does it Cost to Heat Up the Hot Tub?

The running and heating up cost of the hot tub depends on multiple factors such as the electricity cost per unit and how frequently you use the hot tub. However, an average hot tub costs you $1 per day.

Is It Cheaper to Fill the Hot Tub with Warm Water?

Yes, it is cheaper to fill the hot tub with warm water because the water temperature is already high and it needs less energy to increase the water temperature.

What is the Lowest Temperature for a Hot Tub?

The lowest temperature for a hot tub could be 80 degrees. If you don’t want to winterize your hot tub and don’t want to use it for an extended time, you can keep the temperature at 80 degrees. This will help your hot tub from freezing and keep your hot tub running.

What Temperature Should My Hot Tub Be?

The factory setting of the hot tub is around 37-38 degrees. Therefore, a hot tub should be approximately at 39 degrees.

Can I Make My hot Tub Hotter than 104 Degrees?

Many users ask this question if they could heat up the hot tub higher than the 104 degrees. The answer is yes, and you can heat up the hot tub higher than this. However, China Royal Spa suggests you not to raise the water temperature higher than 104 degrees. If you do so, it will have adverse effects on your health.

How Long Does a Lazy Hot Tub Take to Heat  Up?

A regular hot tub takes 4-8 hours to heat up from the scratch. However, a lazy hot tub will take 6-12 hours to reach at the moderate level.