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compare

Comparison or comparing is the act of evaluating two or more things by determining the relevant, comparable characteristics of each thing, and then determining which characteristics of each are similar to the other, which are different, and to what degree. Where characteristics are different, the differences may then be evaluated to determine which thing is best suited for a particular purpose. The description of similarities and differences found between the two things is also called a comparison. Comparison can take many distinct forms, varying by field:

To compare is to bring two or more things together (physically or in contemplation) and to examine them systematically, identifying similarities and differences among them. Comparison has a different meaning within each framework of study. Any exploration of the similarities or differences of two or more units is a comparison. In the most limited sense, it consists of comparing two units isolated from each other.
To compare things, they must have characteristics that are similar enough in relevant ways to merit comparison. If two things are too different to compare in a useful way, an attempt to compare them is colloquially referred to in English as "comparing apples and oranges." Comparison is widely used in society, in science and in the arts.

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Recent contents Top users
  1. Dan

    Van Leasing

    Contractors Compare have a new website feature, Van Leasing, if you'd like to get a new van I'd seriously consider leasing one. Providing your business isn't a new startup and does profit each year then it's a good way to offset some costs against your tax bill. Great Van Leasing Deals...
  2. G

    Good price?

    I have had some quotes for a boiler replacement. I wanted a Worcester Bosch 12Ri, a full power flush, magnaclean and rad valves. In the end I decided to go with British Gas as you know the job will be done right (not that independant plumbers won't do it right, but you know what you are going to...
    • Gixxerman
    • Thread
    • advertising boiler boilers central heating system combi compare install installation jobs loft magna merchants parts powerflush price problem radiators supply tee van wireless worcester work
    • Replies: 36
    • Forum: Plumbing Jobs | The Job-board
  3. P

    Instant Hot Water Tap

    Bee nasked to supply and fit one of these for a customer one that supples hot water at nearly 100 degress Any one got any ideas or anything i need to look out for Tap is looking at £500+
    • Plumbstar Tom
    • Thread
    • boiler boilers boiling cold compare fitting hot hot water instant insurance job kitchen pipe pressure price sink stainless supply tap taps water water tap work
    • Replies: 12
    • Forum: Plumbing Jobs | The Job-board
  4. L

    First job

    Hi all I'm currently training to be a plumber and have decided to advertise for evening/weekend jobs to gain some experience.. (currently in full time employment) I've been called today by a customer who've "dropped a hot saucepan in his 'plastic' sink which is now burnt and needs replacing"...
    • Liam - Trainee
    • Thread
    • basin compare copper first high hot insurance job jobs merchants parts pipe price problem sink soil stainless stock toilet tools training wall waste work
    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
  5. P

    Hi Everyone.Newbie

    Hi, Would like to introduce myself, name is Lucy - just recently moved into an apartment after a divorce, the ex was a builder so he did all the DIY. Now I have set myself a challenge in my new home. I intend to try and do as much as possible, decorating etc., - although I know I will...
  6. L

    Please help identify this radiator

    Hi Guys, If anyone can help me you can! the radiator in this photo leaks not from the fittings but the actual radiator, many plumbers have tried to "FIX" the leak with various compounds but it never lasts long, also no one can find where it came from as it has no visable make or markings. Has...
    • Leeapole
    • Thread
    • central cleaning compare fix help high identify leaking metal please plumbers problem radiator radiators stainless
    • Replies: 10
    • Forum: Plumbing Jobs | The Job-board
  7. M

    1930's wash basin with problem taps

    Hi, I have a small 1930's cloakroom sink in my house with original taps. However I am having a problem with the taps constantly dripping I have taken the tap apart but the inside is totally different from a new style tap with no obvious washers to replace. Can anyone help as I do not want to...
    • mrdee
    • Thread
    • basin camera combi compare copper hose inside job pan plumbing problem rubber sale sink store tap taps washer water work
    • Replies: 12
    • Forum: Plumbing Jobs | The Job-board
  8. A

    Buteline Pipe & Fittings

    Hi All, In the process of a new build and have come across Buteline as an alternative to PEX or copper for the plumbing. Have had a look at the pipe and fittings in the flesh and was quite impressed by the specifications and quality of fittings. I know it's expensive for the clamping tools...
    • adh
    • Thread
    • compare copper diy fitting fittings heating london merchants pipe pipes plumbing system tools web
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  9. S

    Calculation for HEAT INPUT

    Hello. If i know the HEAT OUPUT of a gas fire for example how would i use this to calculate the heat INPUT of this appliance if the data badge is not available. what is the correct formula for example if my heat output on a fire is 7.5kw ? thanks
    • steve799
    • Thread
    • appliance calculation compare find gas gas fire heat heat input input problem web work
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  10. U

    2 solar panels

    I have 2 stand off solar panels with brackets for sale. the packing cases are in a very poor condition, and the supplier wont take them back. Panels and brackets are brand new, and unused. Dimensions are 2015mm x 1015mm x 110mm weight per panel is 36 Kg £800 for the pair
  11. E

    Drain camera

    I am thinking of investing in a drain camera. I have seen some on ebay for less than £400, any thoughts? Any recommendations of what , or what not to buy
    • emergencyman
    • Thread
    • buy camera cheap compare difficult drain head insulation insurance leak maintain pipes price screen system text tools video web website wireless work
    • Replies: 16
    • Forum: Plumbing Jobs | The Job-board
  12. K

    Size of Elbi pressure vessel required?

    The Elbi pressure vessel installed shows large variations in pressure when it is on and when it is off. Approx .8 bar variation from hot to cold and cold to hot. Is this normal or is the pressure vessel too small for the number of rads? How does one ascertain the size of vessel required...
    • kristy22
    • Thread
    • air basin boiler central heating system cold compare concrete cylinder expansion expansion vessel guage hot leak loft noise pipe pipes pressure pump required sealed size system vessel waste
    • Replies: 20
    • Forum: Plumbing Jobs | The Job-board
  13. C

    worcester 28i junior gas rate

    gas rate 2.7 m3/hr on high fire MI states 3.02 m3/hr. Working pressure 20 mbar. readings from anaylizer co2 9.8 02 3.6 x air 20.8 co ppm 100 CO/C0 0.0010 On low fire all readings as per MI Whats the problem Any help please Thanks Coley
    • coley
    • Thread
    • air blockage boiler central heating system compare gas gas rate high hot hot water junior mains merchants pipe pressure problem register safe safety supply temperature test valve valves water worcester
    • Replies: 12
    • Forum: Plumbing Jobs | The Job-board
  14. S

    Low pressure

    Could anybody tell me why a house has very low mains pressure, there are no signs of leaks anywhere in the property, when all isolation valves are closed you can still hear water in the pipe using a screwdriver to my ear ( if that makes sense). When the stopcock is off it all goes quiet, whick...
    • scoop
    • Thread
    • bar compare drainage expansion flow hose inside kitchen leak low flow low pressure noise pipes plumber pressure stopcock supply tap taps underground valve valves water water pipes work
    • Replies: 16
    • Forum: Plumbing Jobs | The Job-board
  15. J

    Replacement Boiler/System

    I have an old potterton netaheat convential boiler and am seeing what are the views of the experts with regards to a replacement. Potterton boiler and also system is on 8/10mm microbore which i will replace with 15mm straight through Been having a look at condensor/combi with a sedbuk rating...
    • Jamie Banks
    • Thread
    • 10mm boiler boilers building building regs central heating system combi compare flow flush installation oil potterton power problem replacement system tee vaillant worcester
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  16. G

    Landlord safety check v Full service

    Is a landlords safety check the same as a full service i.e..... Does the Landlords Safety Check require the boiler to be stripped and heat exchanger and burner to be cleaned as a full service would? Basically im asking if there is a big difference (or any difference) between a Landlords Safety...
    • GreenArmy
    • Thread
    • appliance boiler boilers burner central heating system check combi compare flow free gas gas safe head hose job landlord problem response safe safety service test tools trade valves warning work
    • Replies: 63
    • Forum: Plumbing Jobs | The Job-board
  17. R

    New boiler and scrappage

    Hi there, I'm getting 3 quotes this week as I noticed the new scrappage scheme and thought I would see what the cost of change would be. We have a house that's 23 years old and so is the boiler although it has been serviced every year. I remember when we moved in and I fitted a new kitchen...
    • r1cbm
    • Thread
    • boiler building building regulations city compare gas google job kitchen new boiler oil parts plumber plumbers potterton price regulations safe scrappage scheme supply trade training vaillant work
    • Replies: 30
    • Forum: Plumbing Jobs | The Job-board
  18. P

    boiler brakdowns please read

    i just wondered how you guys become experienced in breakdowns. i like to think im pretty experienced at the installation side of things.but the breakdowns are a different ball game.
    • P4ULT
    • Thread
    • baxi boiler boilers central heating system combi compare courses difficult electric engineer fault find gas safe head industry job london oil please plumber problem pump safe software tips training website work
    • Replies: 40
    • Forum: Plumbing Jobs | The Job-board
  19. B

    Calorific value

    As our gas meter records in M3 and charged for in KWs I phoned the supplier (EON) and asked them for a ball park figure of how many KWs in a M3 (cubic meter) I was told they can not tell me because the price of gas varies as does the calorific value. They also told me to go to the gas...
    • bobpape
    • Thread
    • air boilers burner compare efficiency gas gas meter high hose maintain potterton power price pump value water
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  20. D

    Earthing to a gas meter

    anyone know can an earth wire be attached to the customer side of a gas meter is this legal ? as we are locked in a battle with a sparks over it , he thinks he has a good earth , but according to the gas company his earth is bad and not legal, any comments ?
    • dublin plumber
    • Thread
    • 10mm boiler compare electric electricians gas gas boiler gas meter hot installers kitchen meter pipes regulations remove safe safety system taps tee
    • Replies: 11
    • Forum: Plumbing Jobs | The Job-board

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