On the face of it, steam generator irons and traditional steam irons appear to be pretty similar. However, steam generator irons have a different construction and a different mode of operation. They use a larger base unit as both water tank and boiler - unlike a traditional steam iron there is no water in the body of the iron itself. Steam generated in the base unit is supplied to the body of the iron via a hollow tube.
As a rule, steam generator irons cost a little bit more than conventional steam irons - but they offer the user a number of advantages. It’s worth taking a few moments to review the important points before you decide which iron is right for you. The main items to consider when making a comparison of different steam generator irons are the steam pressure, the water reservoir capacity, the soleplate, ease of cleaning and overall usability.
PRESSURE OF STEAM: The steam drives moisture and heat into the fabric of the garment being ironed. This makes it easier to remove wrinkles and creases as it causes the fabric to become more flexible. The higher the steam pressure is, the deeper it is driven into the fabric and the better the finished results are.
Steam generator irons usually have their output quoted in grams of steam per minute. The higher the number, the more steam is produced and the easier it is to iron. Typical values range from 70 to 140 grams per minute (g/min).
You will also see some irons with their steam pressure quoted in bar. Again, the higher this number is, the more steam that will be produced and the better the finished results will be.
WATER RESERVOIR SIZE: Steam generator irons normally have a generously sized water tank. This means that you will be able to do a fair bit of ironing before you need to top up the water. The exact duration will vary based upon the type of fabric being ironed - but you should get a couple of hours of ironing out of a 1.4 litre tank.
If you do a good deal of ironing then you may wish to consider getting one of the larger tanks available. If you have an ironing board which is relatively small, then you might want to make sure that the tube which connects the reservoir to the iron is long enough for you to work with the base unit positioned on the floor rather than on the ironing board itself.
It’s also worth considering how easy it is to fill the reservoir. Many of the better steam generator irons have removable reservoirs to make filling easier. It’s a lot better than messing around with jugs of water. Some also have the facility to top up the reservoir even when the iron is in use - which avoids you having to disconnect it and then wait for it to heat up again after filling.
THE SOLEPLATE: The soleplate of the iron should glide smoothly over the surface of a range of different fabrics - whilst still generating enough friction to remove any wrinkles and creases. It should be durable, tough, scratch resistant and easy to clean. Soleplates with ceramic coatings are widely used these days and are a good option.
EASE OF CLEANING: The majority of modern irons, whether steam generator irons or conventional steam irons, use ordinary tap water. Depending upon where you live, this will typically contain a variety of different minerals - including both calcium and magnesium. This can result in scale deposits as the water is heated and evaporates.
If your house is in a hard water area, then you will definitely want to go for an iron which has some type of anti-scale system. Some iron use a special detachable anti-scale cartridge - others use water to loosen the scale and then flush it out.
USABILITY: As already discussed, you may find it preferable for your iron to be positioned on the floor rather than on the board - which needs a long enough hose connection.
Most people will find a removable water tank to be a convenient feature.
Other features, which you may or may not find appealing, include automatically rewinding power cords, fast heat up systems, easy clean soleplates etc.
SUMMARY: Be sure to choose a high enough steam pressure for your requirements. Select a water reservoir which is large enough so that you don’t need to keep stopping in order to top it up. Ensure that the soleplate is of a suitable material and design. If you live in a hard water area, make sure that some anti-scaling system is incorporated.
Cut out the drudgery of long ironing sessions with a Tefal steam generator iron - you’ll be amazed at how much time you can free up.