Search the forum,

litre

The litre (British English spelling) or liter (American English spelling) (SI symbols L and l, other symbol used: ℓ) is a metric unit of volume. It is equal to 1 cubic decimetre (dm3), 1000 cubic centimetres (cm3) or 0.001 cubic metre (m3). A cubic decimetre (or litre) occupies a volume of 10 cm × 10 cm × 10 cm (see figure) and is thus equal to one-thousandth of a cubic metre.
The original French metric system used the litre as a base unit. The word litre is derived from an older French unit, the litron, whose name came from Byzantine Greek—where it was a unit of weight, not volume—via Late Medieval Latin, and which equalled approximately 0.831 litres. The litre was also used in several subsequent versions of the metric system and is accepted for use with the SI, although not an SI unit—the SI unit of volume is the cubic metre (m3). The spelling used by the International Bureau of Weights and Measures is "litre", a spelling which is shared by most English-speaking countries. The spelling "liter" is predominantly used in American English.One litre of liquid water has a mass of almost exactly one kilogram, because the kilogram was originally defined in 1795 as the mass of one cubic decimetre of water at the temperature of melting ice (0 °C). Subsequent redefinitions of the metre and kilogram mean that this relationship is no longer exact.

View More On Wikipedia.org
Recent contents Top users
  1. F

    Anybody have experience with the Bosch 18v 10 litre wet vac.

    My Parkside wet vac has sh_t itself .20v battery is sound but motor seized.Is anybody familar with the 18v Bosch 10 litre?
  2. M

    7 litre invented under sink heater

    I was at a job today and notice a 7litre under sink heater was fitted. Because of the size under 10litres do these not need a pressure relief valve and expansion vessl? It didn't have any of the kind. Thanks.
    • Matt0029
    • Thread
    • america heater litre sink under usa
    • Replies: 18
    • Forum: USA
  3. M

    Fixed “2 litre per minute underfloor leak”. Thank for advice.

    a few months ago I made an enquiry re a leak in hot water system under the floor preventing central heating working. thanks for help in my last post. The solution was to divert around the leak and install new pipes. The pipes were well hidden and several visits were needed to track the pipe...
  4. W

    Is a single 15 litre water heater sufficient for a flat?

    The background to this is that I have a close friend who runs a charity helping to homeless people into work and accommodation. Needless to say the accommodation is usually right at the bottom end of the range. This weekend she asked me to take a look at a studio flat in Reading where a tenant...
  5. W

    300 litre Cistern has 15mm pipe to supply power shower .

    Hi All I have job to do . Hotel has 4 cisterns x 300 L water each cistern supplying two rooms with electric power shower 8.5 kW power that need to have min. 8m/min water flow . Power shower no heating water. Flow rate is below 7-7.5 No chance for pumps because system is complete mess . So...
  6. D

    Old cistern replacement

    hi guys I would be great full if someone could tell me if I could replace this old type cistern for a new modern cistern using the exsisting pan. Is the connection to the pan likely to be different?
  7. T

    Pressure drops when 650 litre buffer tank is filled with water but no drop with air

    I have a 70kW woodchip biomass boiler installation including a 650 litre buffer tank, all installed in 2014. The buffer tank loses pressure from say 2.58 bars to 0.00 bars within a 48 hour period. Yet there are no visible signs of any water leaks, When this tank is drained of water then...
  8. eagleeye

    Toilet flush

    I recently changed 3 old lever handle concealed toilet cisterns to Grohe pneumatic type cisterns. Problem is have now is that it won't flush paper away. It's fine with waste but not paper. Customer says was fine before but I'm not 100% on this !! Doesn't seem as much pressure as before but it...
  9. kozak1968

    KW allowance for 210 litre cylinder

    Does anyone know if there is an accurate formula for working out the requirement of heating hot water for a 210 litre unvented cylinder. Using the whole house method works o.k for standard vented cylinders, but i just want to know if more allowance would be required for unvented cylinders due to...
  10. M

    10 litre unvented undersink heater

    does the check valve that goes before the expansion vessel and pressure relief on a 10 litre unvented undersink heater need to be single or double?
  11. L

    Worcester or Santon indirect unvented cylinder

    Hi, I am planning to have a Worcester Greenstar i System boiler (30kw). Would you go for a Worcester cylinder or a Santon cylinder? Also in terms of size, is it best to go for a smaller cylinder say 210ltres instead of 250litres to save heating and storing a lot of water? There are five...
  12. K

    Toilets, do you get what you pay for?

    Hi, I need to buy a toilet and I have a few questions. I recently cracked my cistern after reinstalling my closed coupled toilet. My first question is do all cc toilets have standardised connections and if so are there any common issues or problems I am likely to run across if I just buy...
  13. SimonG

    2,500 Litre Water Tank.

    I have a 2,500 litre water tank that I am about to install. Filled from a nearby stream, or it will be. My question is this. The water supply is from the stream, a submersible pump in a concrete chamber, this feeds into my plant room in 22mm copper, there is an expansion vessel, pressure...
  14. G

    external expansion vessel on combi

    Hi all i am going fit a external expansion vessel for a combi . The current one is split on hermann icon 23t so i am going to cap it and fit a 12 litre external expansion on the return . The question is will the boiler be ok in hot water or will it over presurise during dhw operation due to...
    • gizmolang
    • Thread
    • boiler combi expansion expansion vessel external litre registered vessel
    • Replies: 14
    • Forum: Plumbing Jobs | The Job-board
  15. H

    14 ensuite rooms, 3 x 300 litre unvented cylinder's, BOILERS ????

    hi, I have been asked to finish a guest house which has 14 unsuite shower rooms. the old builders and plumbers have been kicked off for being too slow. the owner just wants it all finished now. there is a 28mm hot feed, 22mm secondary return and a 22mm cold all already go to each room which I...
  16. B

    Oil pump on 10,000 litre tank to Potterton Avon Twos.......

    Back to the Potterton questions again! A reminder, 2 Big ol Pott Avon 2s side by side, 4 Gallon nozzle single stage burners. Less than 20 metres away is the oil tank room with a 10,000 litre tank in it on the same level. There is no Aga or other oil fired appliance. Burners are both twin piped...
  17. S

    Oil fired boiler fires for 30-60 seconds then cuts out?!?

    Hello,boiler ran out off oil and the fella has filled up tank. He asked me to bleed so I went down and got the oil to the burner. It fires for 30-60 seconds then cuts out with the red lift on boiler coming on. There is a flow to the burner but won't stay on. Would this be oil pump maybe? It's an...
  18. clarky101

    Direct 120 litre unvented cylinder

    Took out one of these last week, guy said it was put in 18 months ago, so i've got a Stelflow 120 litre Direct unvented cylinder, expansion vessel & bracket, cold water inlet set. Its not a slimline more a 36" x 18" ish. If anyones interested in making an offer just pm me. I'm down in Bexhill...
  19. I

    Leaking hot water tank from Albion Water Heaters 1200 x 450 Grade 3, 162 litre vented

    Leaking hot water tank from Albion Water Heaters 1200 x 450 Grade 3, 162 litre vented cylinder We had a new hot water tank installed 3 years ago and the leak probably started 1-2 years after installation judging by the build up of scale/residue around the leak, and the amount of water under the...
    • Ivar Tangen
    • Thread
    • grade heaters hot hot water leaking litre tank vented water water tank
    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
  20. hammers4spanner

    quick re heat

    Hi guys am looking for a direct unvented cylinder 300 litre with some quick re heat times had a nose on google and cant find one that will heat up quick enough . Anyone on here aware of one ?
Creating content since 2001. Untold Media.

Newest Plumbing Threads

Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock