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comparison

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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  1. W

    Can anyone help me understand the difference between two radiators?

    I'm looking to put an extra column radiator in my living room and when doing my research found one secondhand on Facebook marketplace that I figured could help me save some money on what can be expensive radiators. Anyway, the advert had a link to the sale page for the radiator...
  2. T

    Combi Comparison - any real life experiences?

    Hi all, A gas engineer has inspected my property and suggested that I go with a combi boiler, even though I want to support two showers and a bathtub in the near future. To compensate, I am now looking at the following two, due to the high flow rates (both with modulation 10:1 - so should be...
  3. Crooksy88

    UFH screed vs chipboard overlay performance comparison.

    Hi, as part of an extension/refurb project I will be fitting UFH over a new concrete floor as well as existing joisted timber floor. Both floors being within the same room. My question is whether anyone has done this mix of subfloors before and noticed a performance/temperature difference...
  4. O

    Worcester / Junkers comparison:)

    I just checked on one of the German websites in regards to boilers :) If anyone of you is interested in here is a link which gets you to the price of a 24kw boiler :) JUNKERS 7739604698 Gas Heizwert Paket Junkers ZWNKE 12, 24 KW
  5. Leigh Florence

    Macerator noise comparison Saniflo vs Grundflos: Desperate to do the right thing!

    Hi all I live in a second floor flat and my toilet needs a macerator. I have bought the Grundfos Sololife 2 CWC-3 wall hung macerator 620W from Screwfix. Grundfos tell me the noise level for this pump is 70dB(A). It cost me £320. I bought this a while ago as had to wait for the builders, so...
  6. C

    Fuel Costs - Electric up, Oil down

    Our calculations | Energy Saving Trust Please see link to trusted site for fuel costings as you can see it the costs for kW/h for oil is around 5.36p against standard rate electric of 14.05p, even allowing for some heat loss from boiler & pipes it is still much cheaper to heat your hot...
  7. gassafe

    Flow rate comparison s or y?

    Went to quote a boiler recently, 18 rad system, and was surprised to see a little 22mm mid pos valve in the airing cupboard. Customer says some rads struggle to heat, its a 28kw system at present. I am going to quote a 30 cdi sys, would it be beneficial to change to a 28 3 port in airing or...
  8. R

    M.p.g comparison

    thinking of selling the jumbo tranny for something a bit smaller and wondered what you guys have, model and engine type. also, what return are you getting in fuel to the mile?. my tranny is 2.4 duratorq 125hp giving 25mpg urban/32mpg motorway 118mph (m18).:lipsrsealed2: land rover does 22mpg...
  9. E

    Price comparison on installations

    Hi, Ive been installing boilers for about a year now and would like to know what others charge for installations. Sometimes i think my estimates are too high, then when i get a job i wonder if my estimate is too low. What would you guys charge, labour only for: Straight swap combi for combi...
  10. B

    First few boiler installs

    Has post says just installed a few boilers now and what ive noticed is every job i start i find numerous faults with the install.ie gas pipe touching consumer unit, no sleaving on gas pipe through cavity wall no on/off tape,gas pipe run outside with nail clips to name a few.And when i tell the...
  11. P

    gas rating heat input

    doing my acs at the moment just a general question when you put a boiler on calibration mode for example the baxi duotec combi and you have worked out your gas rate and heat input calculations , what input do you refer to in the manual to compare it to ? i know its gross but is it the CH or DHW ?
  12. P

    AIRFEL Single and Double Panel Radiators 12 years warranty ????

    can someone please tell me why airfel panel radiators have 12 years warranty? I am about to buy a few Airfel panel radiators but i need some advise first. Thanks, Dave
  13. spanner

    Bending a 90 in chrome!!??

    Just a quick need of your advise.!! Is it advisable to make a 90 degree bend in copper chrome tube?? anyone..!:confused::confused:
  14. E

    Average water use per person per day.

    I have a customer whos average water consumption works out at 616 liters per day. She is a pensioner and lives alone but sometimes grand daughter comes to stay. The UK average is 160l per day. I can find no leaks and the meter does not spin when no taps turned on. She does water the garden...
  15. P

    Worcester 30Cdi vs Gloworm 30 Cxi

    Which is the better boiller in your opinion. Not much in the price. I have a customer who has a father in law who used to be a plumber and told Gloworm are pretty good. Ive never fitted one. I believe they share bits from Vaillants?
  16. C

    Where to buy tools from

    Afternoon all. wondered where you bought your tools from. Did a price comparison with Tool station and Screw Fix and TS was cheaper - but what about quality? I went for the cheapest products both had to offer. What do you think TS, SF or even Wickes?
  17. B

    Best Budget combi?

    I was just wondering what you guys fit for those customers, or landlords in this case, that want a new combi fitted but dont want to spend much? As a rule, I avoid cheap boilers, but if they want budget, I make it clear its there decision and false economy etc etc. I've only ever fitted a...
  18. A

    ideal he30 isar insurance advce pl?!!

    Hi peeps, I had da above boiler fitted jan 2008. Its leaked twice, da pipe froze over winter (i couldnt gt thru 2 the company who had fitted the boiler so called 2 local firms, they both walked in2 the house and walkd straight back out saying they dnt touch ideal boilers thr 2 mch trouble!) and...
  19. L

    plumber needed for sub contractor

    plumber needed in nw London for copper pipework installations with a team of plumbers must have experience and cscs and be self employed registered rates 120 pounds per day please call lee on 07921848176
  20. R

    British Gas TOol Box

    I'm in need of desprete help. My van was broken into last night and my tool box was stolen together with other bits and pieces. The tool box in question is the one that BG engineers use. (blue one) Does anyone know where I could buy one. I've looked over the internet and no luck or if...
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