Tumble-Dryers, How to get the best from your tumble dryer or fluffer.

Tumble-Dryers page all the insider knowledge

The first points to look out for when buying a tumble dryer.

Does it have an automatic moisture control sensor system to ensure the heaters are not running when not required, which would waste your valuable power supply?

Does the the air flow from the back of the drum to the front, so that the clothing falls through a stream of hot air in the most efficient way?

Does the drum counter rotate, so that the washing does not end up in a tangled knot inside the drum, which would mean the washing would not dry evenly?

Does it have temperature choices to accommodate different types of fabric, hot cottons, cool woollens and delicates?

Is the drum smooth inside with no nasty bits of sharp metal to cause extra wear and tear on your clothing?

Does the fan motor pause allow fabrics to fall to the bottom of the drum, so they are not flattened against the door for the whole drying cycle?

A typical smaller commercial tumble dryer showing all the things to look out for when buying, installing or using.

There are several types of heating used in the larger commercial tumble dryers, Gas either LPG or town gas, Electrical, or steam pressure. normally high pressure.

Because the heat comes directly from the flame, which passes through the clothes, the extraction rate and efficiency is the highest and most cost effective, which is why it is very popular in Tumble-Dryers everywhere.

High pressure steam is useful where there are a lot of machines in a large hotel or hospital laundry.

The electrical power required to heat them all would be huge, so a single boiler with backup is used to supply all the heat to washers, dryers and rotary irons so that they are all supplied by one heat source.

This boiler could be heated by coal/solid fuel, fuel oil or gas of what ever type is available and cheapest locally.

How to work out what size of Tumble-Dryers you will need to cope with your laundry load.

So a 6kg washing machine will have a drum volume of 60 litres, a 6kg tumble dryer will have a drum 150 litres.

Which is why when looking at a large laundry room the tumble dryers look huge compared to the washing machines.

If you have an hotel, restaurant, nursing home, or hospital to calculate, firstly work out the total laundry to be dried, consult the extraction rate of the dryer,then you have the weight of water to be removed and can then work out how many hours work a particular machine will take to complete the job.

The total weight of water to be removed can be ascertained from the extraction rate of the spin cycle for the washing machines' spin cycle. Say a spin will remove 50% of the weight of water you will be left with half the dry weight of the laundry left in the machine in water to be removed by the Tumble-Dryer.

As long as you calculate the worst case, for high absorbency. towels, then poly-cottons and synthetics will take less drying, due to their low absorbency.

If you would like a spreadsheet to complete this calculation with all its variables, I can email one to you if you use the contact me page..........@ Contact me with your comments and questions. Remember when installing Tumble-Dryers never put LPG (Liquid Petroleum Gas) heated machines below ground floor in a basement, or on board ship as any gas leak would build up to form an explosive mixture with no escape.

Always try to use one outlet pipe for each machine exclusively, as to calculate a manifold for a series of machines is difficult enough, but to get the builder to construct it correctly is another ballgame.

From my experience the builders always assume they know more than you and create a dogs breakfast of an exhaust system.

Which is costly to replace and will end up with arguments sometimes ending in court.

Go to my calculation page to work out the size and quantity of tumble dryers required. Laundry calculation page If you still do not know how many machines you will require at you can work it from the laundry spreadsheets stored on google docs at google docs spreadsheet pages

Tumble dryer tip for longer life and quicker drying.

This will entail removing all the vent pipes and cleaning out all the fluff with a vacuum cleaner most thoroughly.

With tumble dryers similar to the Miele machines you will find more than one vent outlet, you may also have side outlets as well as to the rear. Remove the caps off of these and vacuum them out carefully.

Check all the various grills and air flow areas carefully to remove as much of the fluff that has been build up over the weeks or !! Months!!, since you last looked inside the machine.

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