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In finance, the style or family of an option is the class into which the option falls, usually defined by the dates on which the option may be exercised. The vast majority of options are either European or American (style) options. These options—as well as others where the payoff is calculated similarly—are referred to as "vanilla options". Options where the payoff is calculated differently are categorized as "exotic options". Exotic options can pose challenging problems in valuation and hedging.

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  1. A

    LP722 Controller, is there a wifi compatible option?

    I have a Drayton (lifestyle)LP 722 7 day controller for Central heating and Hot Water Is there a near similar product that can be controlled by wifi?
  2. 6

    Which mains boost option?

    Hi all, Got a customer who wants an unvented cylinder fitting, they have low flow rate so looking for opinions on best mains boost solution - had a quick look and in order to get anywhere near 18l min will need an accumulator and pump combo. Expect the answer is the bigger the better, as always...
    • 64degrees
    • Thread
    • america boost mains option usa which
    • Replies: 2
    • Forum: USA
  3. P

    Shower option - cast your vote! Cold from loft tank VS Pressure Equalising Valve?

    First - an apology for monopolising the forum with all my plumbing questions! I'm hoping this will be my last and I'll move onto something else (like choosing a woodburner, which is the next thing on the to do list)... My situation... We've having a bathroom refit and will have a new bath with...
    • Plumb Line
    • Thread
    • america cold loft option pressure shower tank usa valve
    • Replies: 8
    • Forum: USA
  4. P

    Best option to reduce high water pressure - plumber and PRVs vs. water company?

    Hi (again!) Following on from this thread.... https://www.plumbersforums.net/threads/under-pressure-dum-d-d-dum-dum-options-for-high-water-pressure.122904/ I hope you don't mind but I thought I'd start a new one as Dwr Cymru could turn up next week so really want to decide what's best and...
    • Plumb Line
    • Thread
    • america company high option plumber pressure reduce usa water water pressure
    • Replies: 3
    • Forum: USA
  5. B

    Help -What is easiest option to fit double waste under sink ??

    Hi All Attempted to fit a double waste outlet today (w/machine and dishwasher) but failed. I purchase this from screwfix presuming i could i just swap/convert the current single hose outlet to a double but when i tried i realised it was for 40mm pipe/compression fitting and i could not just...
    • bilabonic
    • Thread
    • america double help option sink under usa waste
    • Replies: 12
    • Forum: USA
  6. C

    Basin waste option

    Hi all, We are replacing our bathroom “hand wash basin on a table” with a basin on a new wall-hung cabinet with a drawer in it. The problem is, the waste pipe outside diameter is 36mm but the space behind the drawer is only 33mm Behind that gap is a 10mm wide strip of wood (about 30mm high)...
  7. L

    Advice for boiler option for 15 mm pipe gas supply into the flat

    Need to replace a 20+ year combi boiler (doesn't work), it is in a 65 sq m (2 bedroom 1 bath/shower) flat on a second floor of a Victorian house in central London. The only other appliance that uses gas is a cooker. It is likely that the 15 mm pipe is all the way from the gas meter that is in...
  8. D

    Thermecon Option Oil Boiler 140/190 Seals

    Hi Folks Does anyone have info on the seals for the inspection hatches in this boiler. It badly needs servicing and looks to have been sealed with fire cement in the past. Are these rope seals (and what size) or bespoke seals. Wholesaler can't source them but loathed to open it up without...
  9. Z

    Which combi boilers are available with a rear flue option?

    I'm after a boiler with a rear flue option for a replacement cupboard installation, i know the Vaillant Ecofit Pure and Gloworm equivalent but i've fitted one before and wasn't really happy paying a grand for what seems to be essentially the same as a £480 Heatline Capriz2 so was looking for...
  10. mgw

    Long delay with DHW is an electric boost an option?

    I don't want to have just electric heated water, when using a lot it makes sense to take it from the 30 gallon hot water tank, however in the kitchen the amount of water I need to run is silly, so I looked at an under sink heater with idea of feeding it with hot water so I can select if heated...
  11. P

    Beware! - the gas control valve jammed on Potterton Kingfisher - valve sent with wrong controller option set

    I am a keen DIYer but I don't play with gas! (I am an electronic engineer). I have an old (25yrs+) Potterton Kingfisher2 that soldiers on but just had it's first major fault - the gas control valve jammed. I ordered a replacement valve on-line and booked a Gas Safe Plumber to come and fix it. He...
  12. H

    Vokera Option 24kw - no system pressure control

    With the filling loop disconnected and the boiler cold, the system pressure steadily over a couple of minutes rises to 3 bar. Does anyone have any suggestions as to where it could be passing over. Heat exchanger or ? any help to diagnose would be appreciated. Thanks
  13. S

    New boiler with option of ASHP later?

    Hello Hoping for a bit of advice on how to upgrade my central heating. I've currently got a conventional LPG boiler which I think must be about 20 years old (aprox age of house) which I'm planning on upgrading when our kitchen is done. Where I get confused is what to replace it with. I would...
  14. RDS

    Boiler replacement flueing option advice

    Hi all, Been asked to quote for boiler replacement and went outside and saw this: The customer wants an Alpha etec 20s, even with the plume kit its not gonna meet regs. Looking for suggestions without having to move boiler location - is it possible??. Thoughts much appreciated....
  15. J

    Best option for upgrade

    Hi all, we moved into our house 2 weeks ago. Current it has a 117L vented cylinder which has 2 tanks in the loft. Also an old boiler. Approx 22 years old. I am wanting to replace the system as we are renovating the house. I was advised not to get a combi due to having 2 bathrooms with mixer...
  16. J

    Noisy combi boiler strange repair option

    Our worcester greenstar he boiler sounds like a world war 2 lancaster bomber trying to take off ! This happens when it first switches on in the morning - whenever the hot tap is turned on - or it pumps water when the thermostat clicks it on. An engineer has suggested we should add an extra...
  17. H

    Wireless Thermostat with multiple heating temperature & timer option?

    Hi, I am trying to find a suitable wireless thermostat with heating timer options which can be programmed for 4/5 times a day ON/OFF setting with different temperature settings. Will appreciate anyone sharing their knowledge. Thank you
  18. Eyespy999

    Three way kitchen mixer with filtered water option

    Hi all, Looking to replace a kitchen mixer tap for a customer with the option to attach a filter cartridge for filtered water, the current tap has had it. I have not installed one before, can anyone reccomed a brand please? Thanks in advance.
  19. Riley

    Twin flue option

    Chaps have no choice I have to fit a boiler with a twin flue option but having never fitted one only removed i have no idea what the best boiler option is that even offers a twin flue choice. Any help would be appreciated
  20. C

    option boilers?

    Hey guys just after some advice on what people are offering as a cheaper option boiler Normally quote Wocester and main But seeing a few new boilers which are more intuitive et looking at the glowworm energy? baxi 100 combi what else are people fitting?
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