What temperature should I set my underfloor heating at?

Author: Trisha Haag  |  Last update: Friday, November 21, 2025

Generally, the optimal floor temperature is between 23°C and 32°C, which comfortably warms without overheating the space. It's important to consider what is the maximum temperature for underfloor heating for each floor type to avoid damage. For instance, wooden floors are particularly sensitive to higher temperatures.

What is the most efficient temperature for underfloor heating?

Optimal Temperature Settings for Underfloor Heating

Electric systems can achieve higher temperatures compared to hydronic (wet) systems, but generally, a thermostat setting between 21°C and 25°C works well for both types.

Is it cheaper to leave underfloor heating on all the time?

Running your system from 9am to 11 pm will def cost you more. Besides the obvious ie house size, desired temp, insulation, glazing etc. etc. that influence the heating costs, the amount of time you run the system will have a significant impact on costs.

What temperature should I set my heated floor at?

We have everything you might need, from heated driveways and roof deicing to towel warmers and radiant floors. When heating the floor we recommend turning the temperature up to 80-86 for ideal comfort.

How many hours a day should underfloor heating be on?

You can rest assured that leaving an underfloor heating system on all day long without causing any unwanted problems or damage to the system.

Underfloor Heating Temperature Guide: Best Settings for Maximum Comfort

What is the optimum setting for underfloor heating?

The best water temperature for in-floor heating generally ranges from 30°C to 45°C (86°F to 113°F). This temperature range efficiently heats the space without overheating, ensuring comfortable ambient temperatures and optimal energy use.

What is the best schedule for underfloor heating?

Correctly setting up your underfloor heating temperatures

The best idea to maximise the results of your heating system is to have 2 “ON” times with a comfort temperature and 2 “OFF” times with setback temperatures which is normally 4°c lower than your comfort temperature.

What is the most economical way to run underfloor heating?

Temperature Control

The most efficient way to run underfloor heating involves maintaining a consistent temperature tailored to time-of-day needs. In the morning, setting your thermostat to around 21 degrees Celsius provides a warm start to the day.

Should you turn off underfloor heating in the summer?

Benefits of Turning Off Underfloor Heating in the Summer

Moreover, operating your UFH system continuously during the summer may incur higher maintenance costs and strain the system, reducing its lifespan.

Should I turn down radiant floor heat at night?

Gold Heat recommends turning down the thermostat 7-10 degrees lower for sleeping at night and when you are away. The U.S. Department of Energy reports that homeowners save at least 25% a year utilizing a Smart programmable thermostat. FUN FACT: The flooring material and the subfloor are like rocks in the hot sun.

What is the downside of underfloor heating?

Yes, underfloor heating has a few disadvantages, such as higher installation costs, longer warm-up time compared to radiators, and potential restrictions on furniture placement.

How should I run my underfloor heating?

It is a good idea to leave underfloor heating switched on constantly during the colder winter months in particular. By leaving the underfloor heating system turned on, better levels of efficiency and faster warm up times will result. Basically, your home will heat up to a comfortable temperature faster.

Should underfloor heating be on constant or timer?

The key is to keep the underfloor heating on but operating at a lower temperature during the night and other times throughout the day when it is not needed. Leave it on low even if you are leaving the house to go to work or out for the day.

Is it cheaper to leave underfloor heating on low all day?

Basically, your home will heat up to a comfortable temperature faster. So, whilst it won't necessarily be cheaper to leave your underfloor heating on for a sustained period initially, it could lead to long-term savings.

How to set a thermostat for underfloor heating?

Set your thermostat to use the floor sensor and set it on manual mode. Set the temperature to 25°C and wait for the floor to heat up. After a couple of hours go back to the room and feel whether it is comfortable for you or not. If it's too hot, turn it down, or if it's too cold, turn it up.

What temperature should underfloor heating be set at Reddit?

During the warmer months the system is completely off because the rooms are warm enough even if the floor feels a little cold under bare feet. In the colder months I usually set the rooms to about 19 to 20 degrees when they are occupied and set them to 14 degrees when they are not.

What is a good temperature for underfloor heating?

Electric underfloor heating systems can reach higher temperatures than hydronic (wet) systems but for both types of systems, a thermostat setting of between 21°C and 25°C is usually ideal. To achieve these temperatures, the actual heat output from the underfloor heating system will be approximately twice that number.

What is the lifespan of underfloor heating?

No one wants to be pulling a floor up to replace something that they didn't install that long ago, after all! If you choose UFH for your property, you can expect it to last for around 50 years. Compare that to the average 12-year lifespan of a radiator, and you can see why it is so popular.

Why is my underfloor heating not working after summer?

Underfloor Heating Not Working After Summer

Very often the problem is a malfunctioning thermostat or a circulating pump problem. In most cases, you have to simply reset a thermostat. If you're not sure how to do this then refer to the manufacturer's user guide.

Why is my underfloor heating so expensive?

An electric underfloor heating system can be three to four times more expensive to run compared with radiators or a wet underfloor heating system. This is because electricity has a higher cost per kWh (kilowatt hour) compared with gas.

What temperature should an underfloor heating manifold be set at?

As a general rule, it is recommended you set your underfloor heating manifold to within a temperature range of 35°C - 45°C. This should then provide enough power to generate a maximum ambient temperature of up to 25°C. However, you will also need to take into account your floor coverings.

How to save energy with underfloor heating?

Get your system serviced. Regular maintenance is crucial to ensuring the efficiency of your underfloor heating system. A well-maintained system operates optimally, using less energy to provide the same level of comfort. Schedule professional servicing at least once a year to clean, inspect, and balance your system.

What is the most effective way to run underfloor heating?

The best way is to run your heating system continuously through the winter months, using the thermostats in the room to maintain the temperature. This might sound illogical and seem like you would use more energy, but this will actually use less energy than switching the system on and off!

What temperature should floor heat be set at?

Typically we would recommend setting your Underfloor heating manifold to between 35 and 45°C, which should give enough power to heat your rooms up to a maximum of 25 degrees while maintaining efficiency and cost-effectiveness.

Should you turn down underfloor heating at night?

It's generally not necessary to turn off underfloor heating at night if you have a programmable thermostat. Lowering the temperature during inactivity or sleep can save energy.

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