# How to Tumble Dry Clothes: Settings, Heat Levels and Cost > Pick the right dryer heat and cycle, use the moisture sensor not a timer, cut wrinkles, and know what a load really costs — US and EU. **Published :** 2026-06-11 --- **Summary:** Tumble drying means machine-drying a load that's **damp, not dripping**. Clean the lint screen, **match the heat to the care label**, and — where your dryer has one — pick the **moisture-sensor** cycle over a timer, so it stops when clothes are dry instead of over-baking them. Let the cool-down finish, then unload promptly. Most guides hand you a list of heat settings and stop there. The two things that actually decide the result are the **care label** (which sets the safe heat) and the **moisture sensor** (which stops the cycle at the right point). Get those two right and the rest is housekeeping. Starting a dryer is easy. Choosing the heat and cycle so clothes come out dry, not shrunk, baked or creased — and knowing what that costs — is the part nobody explains well. Two ideas carry most of the work: the garment's care label sets the safe maximum heat, and a moisture sensor stops the cycle when the load is actually dry. We'll also be straight about the gadgets people ask about, like wool dryer balls. Everything below builds on those. ## The settings that matter: heat levels Dryers label heat as low, medium, high and no-heat — but those labels aren't tied to a fixed temperature. The international test method, [IEC 61121](https://cdn.standards.iteh.ai/samples/19115/1449ba204c6442148539ad49debb45f5/IEC-61121-2012.pdf), rates dryers by how much moisture they remove, not by labelling heat levels, so any "low is 125 °F, high is 150 °F" figure you find online is approximate and varies by model. The one temperature a manufacturer states cleanly is the **permanent-press** cycle, which [GE](https://products.geappliances.com/appliance/gea-support-search-content?contentId=18375) describes as tumbling at about **140 °F (about 60 °C)** before turning the heat off and tumbling about ten more minutes to cool the load. So pick the setting by what your **care label** allows, not by a number: Which fibres can actually go in, and at what heat, is set by the garment's care label and its tumble-dry symbol — see [what can (and can't) go in the tumble dryer](/blog/what-fabrics-can-you-tumble-dry/index.md) for the fibre-by-fibre guide, and the [glossary](/glossary/index.md) for the symbols. And don't confuse dryer heat with wash temperature: those are set separately, on the washer side, in the [laundry temperature guide](/blog/laundry-temperature-guide/index.md). ## Sensor drying versus a timer This is the single most useful setting on a modern dryer, and the one guides skip. Under [IEC 61121](https://cdn.standards.iteh.ai/samples/19115/1449ba204c6442148539ad49debb45f5/IEC-61121-2012.pdf), a **sensor (automatic)** dryer switches off when the load reaches a set moisture level, while a **timed (non-automatic)** dryer just runs for the time you set — whether the clothes are dry or not. Sensor wins for almost everything. The [U.S. Department of Energy](https://www.energy.gov/energysaver/laundry) puts it plainly: if your machine has a moisture sensor, use it, and don't over-dry. Stopping at the right point saves energy and spares the fabric — [ENERGY STAR](https://www.energystar.gov/products/clothes_dryers) notes that the sensors on certified dryers end the cycle when clothes are dry, reducing both energy use and the over-drying that wears fabric out. One catch: a sensor reads a tiny load poorly. If you're drying a single item, add two similar items so it tumbles and the sensor reads it correctly ([GE](https://products.geappliances.com/appliance/gea-support-search-content?contentId=36379)). ## Dryness levels and the cool-down Many dryers let you choose *how* dry the load gets, not just dry or not, and a sensor cycle stops the dryer when the load reaches the dryness level you pick ([IEC 61121](https://cdn.standards.iteh.ai/samples/19115/1449ba204c6442148539ad49debb45f5/IEC-61121-2012.pdf)). If you've ever wondered why the drum keeps turning after the cycle beeps, that's the **cool-down**: the dryer tumbles the load without heat for a few minutes, which relaxes wrinkles ([GE](https://products.geappliances.com/appliance/gea-support-search-content?contentId=18375)). If you can't unload right away, hanging or folding as soon as you can still keeps most creases from setting. ## How to tumble dry, step by step Before you load the dryer, a quick pre-flight: - Care label checked (anything the label says not to tumble → air-dry) - Clothes spun damp, not dripping - Lint screen cleaned - Load sorted by weight; drum not overloaded; single items given companions - Heat level and cycle chosen (sensor where available) ### 1. Check the care label first Read the care label before anything else. If it says not to tumble — a crossed-out dryer symbol — air-dry the item; otherwise the label's heat dots set the maximum heat. For which fibres can go in and at what heat, see the [fibre guide](/blog/what-fabrics-can-you-tumble-dry/index.md). ### 2. Spin the load damp, not dripping Clothes should go in damp, not soaking. If a load came out of the wash dripping, give it an extra spin in the washer first. ### 3. Clean the lint screen and sort the load Clean the lint screen every load: it keeps air moving and prevents fires ([U.S. DOE](https://www.energy.gov/energysaver/laundry)). Then dry towels and heavy cottons separately from lighter clothes so nothing over-dries, and if you only have one item to dry, add two similar items so it tumbles and the sensor reads it correctly ([GE](https://products.geappliances.com/appliance/gea-support-search-content?contentId=36379)). ### 4. Don't overload the drum Clothes need room to tumble freely, so don't cram the drum — leave space for the load to move ([GE](https://products.geappliances.com/appliance/gea-support-search-content?contentId=36379)). ### 5. Pick the heat for the fabric Match the heat to the care label. Permanent press / medium heat suits no-iron items and synthetics ([GE](https://products.geappliances.com/appliance/gea-support-search-content?contentId=18375)); use a lower setting for anything heat-sensitive. ### 6. Choose sensor (auto) over a timer where you can Pick the moisture-sensor cycle if your dryer has one: it stops when the load reaches the dryness you set, instead of running blind on a timer ([IEC 61121](https://cdn.standards.iteh.ai/samples/19115/1449ba204c6442148539ad49debb45f5/IEC-61121-2012.pdf); [U.S. DOE](https://www.energy.gov/energysaver/laundry)). Use a short timed cycle only for a few stragglers or a dryer with no sensor. ### 7. Let the cool-down finish, then unload promptly The drum keeps tumbling cool for a few minutes after the heat turns off — that cool-down relaxes wrinkles, which is why it's still moving after the beep ([GE](https://products.geappliances.com/appliance/gea-support-search-content?contentId=18375)). Take the load out and hang or fold it straight away to keep creases from setting. > Drying loads back-to-back reuses the heat already in the drum, which saves > energy ([U.S. DOE](https://www.energy.gov/energysaver/laundry)). ## What a load costs to run Only the energy and water quantities are anyone's to source — your bill depends on your own tariff. The figures also differ by region and shouldn't be blended, so here they are separately. **In the EU**, a **heat-pump** dryer uses about **1.0 kWh per cycle**, versus about **2.7 kWh** for a vented or condenser-resistance dryer (2020 baseline, [European Commission](https://energy-efficient-products.ec.europa.eu/product-list/tumble-dryers_en)). The 2025 energy label was rescaled so **A is best** ([European Commission](https://energy.ec.europa.eu/news/new-measures-more-energy-efficient-household-tumble-dryers-1-july-2025-07-01_en)). Under [EU Regulation 2023/2533](https://eur-lex.europa.eu/EN/legal-content/summary/ecodesign-and-energy-labelling-requirements-household-tumble-dryers.html), it shows energy **per 100 eco cycles** — the eco programme being defined as drying cotton from **60% down to 0% moisture** — and condenser dryers must reach at least **80% condensation efficiency** and an energy efficiency index no higher than 85. The Commission expects the new EU rules to save 15 TWh of energy and €2.8 billion on bills by 2040 ([EC](https://energy.ec.europa.eu/news/new-measures-more-energy-efficient-household-tumble-dryers-1-july-2025-07-01_en)). **In the US**, [ENERGY STAR](https://www.energystar.gov/products/clothes_dryers)-certified dryers use about **20% less energy** than conventional models, and **heat-pump** models can save **20–60% more** ([U.S. DOE](https://www.energy.gov/energysaver/laundry)). For a real number, multiply your dryer's per-cycle energy by your own electricity price. > A vented dryer ducts its warm, moist air outside; a condenser or heat-pump dryer > captures that moisture into a tank instead — which is why the EU rates condenser > dryers on condensation efficiency (at least 80%, > [EU Regulation 2023/2533](https://eur-lex.europa.eu/EN/legal-content/summary/ecodesign-and-energy-labelling-requirements-household-tumble-dryers.html)). > Heat-pump is the most efficient type > ([ENERGY STAR](https://www.energystar.gov/products/clothes_dryers)). ## Dryer balls and wrinkles Wool or rubber **dryer balls** are sold as a way to speed up drying, but independent testing doesn't support the big numbers on the packaging; any real benefit is small and inconsistent, and comes mostly from the balls separating the load so air moves better ([independent reanalysis](https://green-energy-efficient-homes.com/dryer-balls-review.html)). If you use them, treat any drying-time saving as a bonus rather than the reason to buy. **Recommended product** For **wrinkles**, the fixes are mechanical, not chemical: don't overload, let the cool-down finish, and take the load out promptly to hang or fold ([GE](https://products.geappliances.com/appliance/gea-support-search-content?contentId=36379)). For performance and water-repellent gear, the [how to wash activewear](/blog/how-to-wash-activewear/index.md) guide covers the dryer-care specifics. ## Tumble dry or air-dry? The dryer is fast and convenient, but it isn't free and it isn't gentle. Over-drying wears fabric out, which a sensor cycle helps avoid ([ENERGY STAR](https://www.energystar.gov/products/clothes_dryers)); air-drying skips the heat entirely. ## Safety: lint and flammable residues > **Warning:** > - Clean the lint screen every load — it keeps air moving and is a fire precaution, and vacuum the lint that collects below the screen now and then ([U.S. DOE](https://www.energy.gov/energysaver/laundry)). > - Never tumble-dry clothes soiled with flammable or volatile chemicals — cooking oil, machine oil, gasoline or solvents — even after washing, because they can ignite in the dryer; air-dry those instead ([U.S. CPSC](https://www.cpsc.gov/s3fs-public/5022.pdf)). Lint in the screen is the easy part; the lint that builds up deeper in the exhaust duct needs clearing too, and that's a separate job — a dryer-vent brush kit and the full method are in [how to clean a dryer vent](/blog/clean-dryer-vent/index.md). And if the drum turns but the load comes out cold and damp, that's a heating fault, not a settings problem: the [dryer-not-heating guide](/blog/dryer-not-heating/index.md) walks through it. ## The bottom line Three things decide how a load comes out: load it **damp, not dripping** and clean the lint screen every time; **match the heat to the care label** rather than to an online temperature chart; and use the **moisture sensor** instead of a timer so the dryer stops when the clothes are dry. Do those, let the cool-down finish, and unload promptly — and reserve air-drying for the heat-sensitive things that shouldn't be in there at all. ## Related reading - [What can (and can't) go in the tumble dryer?](/blog/what-fabrics-can-you-tumble-dry/index.md) — the fibre-by-fibre guide and the care symbols. - [How to clean a dryer vent](/blog/clean-dryer-vent/index.md) — the lint that matters most for fire safety. - [Dryer not heating?](/blog/dryer-not-heating/index.md) — when the drum turns but the load stays cold. - [How much does laundry weigh?](/blog/how-much-does-laundry-weigh/index.md) — load sizes, and the calculator for "will it fit". - [Laundry temperature guide](/blog/laundry-temperature-guide/index.md) — the wash-side temperatures, not to be confused with dryer heat.