UK home moisture & energy

A drier home. Clearer costs. Better decisions.

Independent calculators and evidence-backed guides for condensation, dehumidifiers, indoor drying and household energy costs. Built for UK homes, not generic advice.

Calculate a running cost Check home humidity →

Humidity65% RH

Dew point13.1°C

Electricity26.32p/kWh

Drying cost~53p/load

UK energy snapshotElectricity: 26.32p/kWhSource: Ofgem Q4 2026How rates work →

Start with the problem

What's happening in your home?

💧

Windows are wet

Condensation, humidity and dew point explained.

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🏠

Home feels damp

Choose, use and troubleshoot a dehumidifier.

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👕

Laundry won't dry

Compare indoor drying methods and costs.

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⚡

Energy costs feel high

Calculate appliance and heating running costs.

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🛡️

Mould behind furniture

Why it forms and how to prevent it.

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📊

What's the right humidity?

Target levels for UK homes.

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Featured tool

Compare every drying method

See exactly what each method costs per load, per week and per year. Edit watts, hours, loads and your tariff for a fair comparison.

Dehumidifier
Heated airer
Tumble dryer (condenser / vented)
Heat-pump dryer
Dehumidifier + airer combined

Compare drying costs

At 26.32p/kWh

Dehumidifier

53p

Heated airer

47p

Heat-pump dryer

66p

Condenser dryer

99p

Cost per standard load. Actual results vary by appliance.

Toolkits

Calculators

View all tools →

Moisture

Dew point

Estimate indoor dew point from room temperature and relative humidity.

Humidity checker

Check indoor relative humidity, estimate dew point and compare it with a window or wall surface temperature.

Drying

Dehumidifier cost

Estimate the electricity cost of running a dehumidifier in the UK using its wattage, runtime and your electricity unit rate.

Heated airer cost

Calculate the estimated cost per session, week, month and year for a heated clothes airer.

Drying comparison

Compare editable electricity-cost estimates for a dehumidifier, heated airer and tumble dryer.

Laundry drying cost

Compare weekly, monthly and annual drying costs across dehumidifier, heated airer, combined, heat-pump and condenser dryer methods.

Energy

Tumble dryer cost

Estimate tumble-dryer electricity cost from rated power and cycle duration.

Heat pump dryer cost

Estimate the electricity cost of running a heat-pump tumble dryer from its wattage, cycle time and your tariff.

Heater cost

Estimate the cost of running a portable electric heater by wattage and time.

Any appliance cost

Calculate electricity cost for almost any household appliance from watts, hours and your tariff.

Research-backed guides

Latest from DryHomeLab

Browse all topics →

UK Energy Price Cap Explained

What the cap means for your bills.

Mould Behind Wardrobe

Causes, prevention and solutions.

Dehumidifier vs Heated Airer

Which is cheaper to run?

Best Humidity Level UK

What to aim for in your home.

Cheapest Way to Dry Clothes

Ranked by running cost.

Condensation on Windows

Why it happens and how to stop it.

How we work

Transparent, evidence-backed, UK-focused

Every calculation shows its formula. Every claim links to a source. Energy rates are dated and attributed. No fake reviews, no fabricated testing, no invented expertise.

MethodologyHow calculations work

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Editorial policyPublishing standards

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About DryHomeLabWhat we cover

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CorrectionsHow we handle errors

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Start with your home

Check your humidity or estimate what an appliance costs to run.

Humidity checker All calculators