A hot water connection means that you can provide the machine with hot water from your main hot water supply. This can be faster than an internal heater and can save money if you have a cheap and efficient water heater.
Whirlpool Duet WFW70HEBW
Hoover OPH 716DF
The more power per year a device consumes, the less energy efficient it is, making it more costly over time.
Machines which use less water are good for the environment and can save you money in utility bills.
Hotpoint WMFG 8337G
Whirlpool AWE 8840
Front loading machines are good as you can use the space above and sometimes stack a dryer on top. In general front loading machines use less energy, using less water by only partly filling the drum and obtaining higher spin speeds which clean without requiring as much heat.
Dot matrix displays can show important text or graphics using a matrix of lights or mechanical indicators like the display on a calculator.
With a transparent door you can look inside the machine and see what laundry is inside.
You can adjust the height of the machine which means that if the floor is uneven you can level it out.
A faster spin speed means you can get things cleaner with a lower temperature of water. Using a fast spin also extracts water, meaning that the clothes come out nearly dry. Generally, anything over 1000 rpm is very good.
With a wider range of programs to choose from you can be more specific and choose the best, most economic program for your needs.
More weight capacity helps if you want to wash something heavy like curtains. A traditional household machine can hold around 6kg, so with a machine much bigger you may waste energy using it when only half full.
With a bigger drum you can fit in larger items such as duvets, or do a big load at once.
With a delay start option you can schedule the machine to begin at a later time. You can also set the machine to wash at night if your electricity is cheaper outside of peak times.
The machine will let you know when it is finished with an alarm or even by playing a tune.