How to use a thermostat properly: simple tips to stay comfortable and avoid waste

If you’re not sure how to use a thermostat properly, you’re not alone. Many UK homes have perfectly good heating controls, but they’re set up in a way that wastes energy or creates uncomfortable temperature swings.

This guide explains what a thermostat does, common mistakes, and how to get more consistent comfort without constantly fiddling with the dial or app.

1) What a thermostat does (plain English)

A thermostat measures the temperature where it’s located and tells your heating to switch on or off to reach the temperature you set.

It doesn’t “push heat out faster” if you set it higher, it simply keeps heating on for longer until the target is reached.

2) The most common thermostat mistake: “cranking it up”

When the house feels cold, people often turn the thermostat up much higher than they actually want, hoping it will heat faster.

In most systems, this leads to:

• overheating later

• wasted energy

• more manual adjustments

Better approach: set a sensible target temperature and let the system reach it steadily.

3) Use schedules instead of constant manual changes

If your thermostat has scheduling, it’s usually the best way to improve comfort and reduce waste.

Practical scheduling tips

• Set heating to come on before you wake up, not after you feel cold.

• Reduce heating when you’re out (rather than heating an empty house).

• Review schedules seasonally (winter timings often run too long into spring).

4) Check where your thermostat is located

Thermostat location matters because it controls heating based on that one spot.

If it’s:

• in a cold hallway, it may overheat other rooms

• in a warm room, it may switch off too early

If your home has uneven temperatures, it may be worth discussing thermostat placement with a professional.

5) Combine thermostat control with room-by-room control (if you have it)

If you have TRVs on radiators:

• Use the thermostat to control the overall heating “on/off”

• Use TRVs to fine-tune individual rooms

This helps avoid overheating unused rooms.

6) A simple “set and review” routine

To use a thermostat properly:

• Set a sensible target temperature

• Set a schedule that matches your routine

• Review it when the weather changes

• Avoid constant up/down adjustments

Conclusion: comfort comes from consistency

Learning how to use a thermostat properly is mostly about consistency: steady schedules, sensible targets, and heating rooms when you actually use them.

If you want help improving heating control room-by-room, Trust Electric Heating can provide a free quote and practical advice based on your home.

Call 0800 5999 109 or email [email protected] for more information or a free quote.

Scott Conor

Chief Technical Officer

In 2012, Scott founded Trust and invented the NEOS electric radiator after finding a gap for a more innovative and cost-effective electric radiator within the industry. He’s the driving force behind Trust’s research and development, using market-leading strategies to keep customers warm.

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Tags: General Guides.