Dual-flow mixers provide independent hot, cold or mixed water after leaving the end of the spout. They can be deck-mounted on the sink or pillar/bridge-mounted for a more traditional look. Alternatively, choose a monobloc tap, which is a single-hole fitting that usually has two handles for hot and cold water supply.

By law manufacturers must disclose the energy efficiency of their appliances, rated A to G. These are usually displayed prominently in showrooms. The better the rating, the more energy efficient the appliance is - good for both the environment and your pocket.

Most of the energy used by a dishwasher is for water heating. The EnergyGuide label estimates how much power is needed per year to run the appliance and to heat the water based on the yearly cost of gas and electric water heating. When it is time to buy a new unit, look for the Energy Star label.