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units

English units are the units of measurement used in England up to 1826 (when they were replaced by Imperial units), which evolved as a combination of the Anglo-Saxon and Roman systems of units. Various standards have applied to English units at different times, in different places, and for different applications.
The two main sets of English units were the Winchester Units, used from 1495 to 1587, as affirmed by King Henry VII, and the Exchequer Standards, in use from 1588 to 1825, as defined by Queen Elizabeth I.The English units were replaced by Imperial units in 1824 (effective 1 January 1826) by a Weights and Measures Act, which retained many though not all of the unit names and redefined (standardised) many of the definitions.
Use of the term "English units" can be ambiguous, as, in addition to the meaning used in this article, it is sometimes used to refer to the units of the descendent Imperial system as well to those of the descendant system of United States customary units.

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  1. S

    Mains Pressure Tap above Consumer Units OK? UK Law *See Photo*

    I would like a professional plumber's advice on this attached image, which shows a mains pressure pipe with tap located above the consumer units. Is this ok for the legal requirements in the UK? Can someone let me know what the law is on this matter please? have a link? Thanks all.
  2. B

    Which concealed cistern do you use in Calypso units?

    Anyone know which cistern to use in a 500 calypso unit, needs to be serviceable from the front as fixed worktop above (ps I don’t like Dudley Niagara!)
  3. M

    Dragon air warm air units

    Hi Guys For reasons unknown I had to create a new account ... A question for the commercial gas guys, does anyone know where I can get manuals for Dragon air warm air units, spoke to Elan but nothing left apparently. Cheers Marty92 GSR Dom & Comm
  4. Rob Foster

    Gledhill electric hot water units

    Speak as I find the units in McCarthy Stone retirement flats are ALways breaking down that’s why I see loads of their vans going south M6 every working day to fix the rubbish night store heaters but maybe I should keep quiet as there is loads of money being made out of vulnerable pensioners...
  5. M

    Question - replacing Danfoss HSA3 - spindle/key 180 degrees out

    Guys, Apologies if this is a stupid question but I wanted to check something before doing something wrong. I have an intermittent problem with my HSA3 three way actuator. Intermittently it will fail to turn the boiler/pump on when the room stat calls for heat only (it always runs fine when...
  6. M

    Boiler and plastering

    Hi guys and gals.<br><br>This is my very first post on here and I hope you can help. Sorry in advance for the length of this post!<br><br>I've &nbsp;had the bathroom renovated and the lounge and kitchen are now being done. &nbsp;The guys (two) have been finishing the plastering after first fix...
  7. S

    ufh under kitchen unit

    search the web on this subject, getting both yes and no answers. Hoping I can get an definite answers on here.
  8. S

    Options for new cold supply to washing machine

    Hi Chaps, I'll shortly be fitting a new washing machine in the kitchen - the current one being inconveniently situated in the garage:( The only practicable location is as shown in the following (poorly drawn!) sketch: A solid fuel Aga used to live in the chimney breast, but it was ripped out...
  9. M

    Kickspace heaters

    Hi guys, I am after one of the above but has a depth of about 200mm. Is there such a thing, they all seem to be over 300mm deep and 350mm wide. I would rather have one 500mm wide and 200mm deep. If any body knows the answer to this he or she will be on this forum. Thanks guys
  10. P

    Warm air return air arrangement & calculation

    I have been asked to carry out landlords certs on a series of properties which all have warm air units. The landlord has only just purchased the properties and wants a thorough top to bottom of the systems. I have my warm air but havnt seen one for about 10 years (apart from in the acs centres...
  11. T

    Fernox vs kamco power flush units

    Fernox or kamco????? I am getting a power flush in jan. What one should I get cheers gents
  12. S

    Advice on type and model of power shower

    I've got a shower that is just plumbed into my hot and cold water at the moment, and its rubbish as the header tank is only just above it. Bad installation in the first place i think by previous occupier. I am looking at replacing it with a power shower, what do you guys recommend? Are these...
  13. jaydebruyne

    Concealed Plumbing

    When you come across concealed pipework / valves hidden within or behind kitchen units, what is the best course of action? For example, the trap to my kitchen sink is stupidly behind a wooden support at the back of my kitchen units. The only way to get to it would be to break my arm in a few...
  14. M

    Hot water supply - hair salon

    Been out to have a look at this one, all the property has is electricity and a cold water main. Hot water is required to feed two 'back wash' units. The idea of two independent electric showers is out of the picture because of the cosmetic design it would just not look too good. The salon kept...
  15. T

    Removing Air Con units?

    Been asked to remove some radiators and pipework in a property. They've also asked if can remove an air conditioning unit, to which I replied they probably need an F-gas registered guy, was I correct or did I shoot myself in the foot?
  16. B

    Servicing/ maintenance ground source, air source units & ecocent.

    For those of you that dont know me, Im an OFTEC oil engineer specialising mainly on service/ repair. Ive been asked by a few customers if I can service ground source and air source units including Ecocent cylinders (I have G3 for regular unvented). I know nothing about this stuff and I wont...
  17. J

    Kirkwood or Voss bathroom vanity unit

    Has anyone installed either of the above vanity units. Seem good value but wonder what quality is like. Buying on internet, from Better Bathrooms, so unseen, just wondered if anybody else has had any experience of these units or Better Bathrooms furniture? Many thanks in advance for any help or...
  18. C

    Combined W.C. & Bidet

    One of our elderly customers wants one asap - so we are ordering early next week. Has anyone on here got experience of fitting and reliability of these units please. Centralheatking :8:
  19. E

    Grundfos - mini pressurisation units

    Has anyone every fitted a grundfos mini pressurisation unit . I've got to fit one as well as a low lost header tank ..
  20. B

    gas hob clearance

    can anyone explain the clearances on the gas hob pic in viper and b pec book shows 300 from a wall etc and 760 to hood or cupboard above but what does the 50mm mean on the pic either side of hob I have seen hobs closer to wall than 300mm would post pic but cant upload
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