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minimum
In mathematical analysis, the maxima and minima (the respective plurals of maximum and minimum) of a function, known collectively as extrema (the plural of extremum), are the largest and smallest value of the function, either within a given range (the local or relative extrema), or on the entire domain (the global or absolute extrema). Pierre de Fermat was one of the first mathematicians to propose a general technique, adequality, for finding the maxima and minima of functions.
As defined in set theory, the maximum and minimum of a set are the greatest and least elements in the set, respectively. Unbounded infinite sets, such as the set of real numbers, have no minimum or maximum.
I've had a 1400x900 shower tray fitted at the end of a 1400 wide bathroom so essentially in an alcove.
I wanted to get a glass panel of just under 1000mm and not bother with a door, that would leave a space of just over 400mm to walk in and out. Do you think that would be ok. No fatties in the...
Hi. Was looking for a house on sale the other day and just wanted something confirmed to me...
Was there ever a time when a condensing boiler could have been legally fitted, and in accordance with MIs, with a 22mm overflow used as an external condensate pipe... and with that condensate pipe...
I am going back to a Worcester Greenstar 30 CDi Classic that's failing a CO2 emissions test on minimum rate only. I do adjust the gas valve but there is zero effect. I haven't mixed up the "min" and "max" adjustment screws.
What could be causing this boiler to fail on minimum only? It's perfect...
I've read it's generally around the 150mm mark, but I'm wanting to fit a particular style (see photo) in to a particular space that will only leave 100mm.
I was just wondering if the relatively open structure of this style would give me any latitude in terms of gap between the floor and the...
Evening chaps, I realise that different parts of the country will differ in terms of pressure and flow in coming but is anybody else noticing a trend that guaranteed litres per minute is coming down and down as confirmed by providers?
I have two recent quotes both large family houses where...
Hi, Diyer here looking for some experienced opinions… I have a 3 walled alcove which I can get a 1200mm shower tray in. Is it realistic to go for a static screen with possibly a 300mm hinged return addition. Or is that just too small and will I end up with water all over outside the shower...
Hi team,
Garden room project requires a new drain running to my rear most chamber.
The problem is the bottom of this chamber is 0.45m so it's quite shallow.
The garden room is higher so there should be enough fall but the new pipe won't be all that deep.
A bit of googling and I'm getting mixed...
Im installing a wall hung toilet frame and just working out where everything needs to be positioned etc.
I want to move the frame/toilet over to the right as far as possible but can anyone tell me if there is a minimum distance that should be used for a straight run before going into the...
Evening all,
Basically my question is how deep must a 15mm copper pipe be inserted into a push fitting for it to function properly without leaking? I Bought this Tap Tail Adapters from Toolstation this morning and I am wondering if they are deep enough. I tried to install a new mixer tap this...
Anyone know if there is a bottle trap connection tube minimum length?
(The pipe between the trap and the basin)
I would like mine as short as posible so the trap is less obvious.
Just wondered if I could cut it really short or does there have to be minimum drop distance before the trap for good...
Hello there, I'm wondering if anybody can advise me, please. I'm in the process of switching my thermostatic radiator valves to Drayton Wiser valves. I currently have one radiator fitted with lockshield valves as a bypass, but I would like to put a Wiser valve on this as well and incorporate...
Hi all,
my employer took on a new build property which was built for them last year. There are 4x 480KW Ideal condensing boilers installed to serve a district heating network serving approx. 560 student apartments.
Due to a lack of decent control, these boilers are achieving a seasonal...
Hi All
Has anyone ever questioned the reasons why Vaillant MIs for their vertical flue termination refer to damp exhaust air escapes from “channel vents” may condense in the air pipe and cause damage to the product, this would suggest that the flue terminal has to be at least 1 meter away on...
Hi All
Until further notice, to help support engineers, we are now offering FREE UK mainland delivery. There is currently no minimum order value. Normal direct delivery services are available, however the cut off time is now 4pm for next day delivery
Please note that delivery outside UK...
I thought explaining why we have the system in place will help you guys get over it.
It's to do with our search engine rankings, and how much traffic we get.
So a thread could have a nice long first post, a customer asking about a bath or whatever. Then one person replies to it, a few...
Good Afternoon
Please can anyone confirm what the minimum distance the top of the flue pipe should be from the eaves and guttering if the flue is extended so the end of the flue is past the fascia and gutters and releases any gasses
into the open air. I have an Intergas 28/24 combi boiler
In...
hello,
I have a question regarding the minimum size of a chimney for a gas fire.
The builder doing the house refurbishment has apparently got fires included in his gas safe, so they are undertaking the work.
They are building a chimney breast from new, there are 2 basket gas fires rated at...
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