Practical appliance guides

Understand your appliances. Make better decisions.

How to estimate appliance running costs

Find the right power or energy figure, apply your own tariff, and avoid the common mistakes that distort an appliance cost estimate.

Understand the three numbers behind air purifier capacity, including airflow units, ceiling height and the limits of coverage claims.

Know when energy matching helps, when a time range is more honest, and why cooking time never replaces a doneness check.