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says it on the data badge, we dont have heat-in put in our heads, always go by the badge.

a gas tighness test is always something i would do on a gas cert for sure. just as much to watch my own back as much as anything else. i know people that wont bother taking a fire of the wall to check that the flue is ok, check catchment space, check fora damper plate and clear debris. although...

yeah i`v come across the same thing, do a gas cert ,cap off something cos it I.D then fit a new appliance. i guess if the new appliance has been installed by a corgi fitter the law say`s it safe to use ? must be something like that.

do the honeywell course

mos i got told off for takin the p+++ss out of em, some n*b ed will ava pop you watch. was once told ages ago buy my old college tutor that a by-pass on a y plan was not requrired, dont believe this to be totally true, after all there is a difference between a boiler by-pass and a...

bster your work looks very smart mate, you can get crome looking trv`s` also,would look the dogs b+++ks. as for the thing about using push fit on crome, i don`t` see how it could work?? why do we have to move on from compression? i know i always use this method. this is plumbing after all ,not...

thanks simond the point you make was my point all along, i add to the topic at the stat then a few people stared going on about other SAFE ways to install unvented cylinders, i can only see one way, to use a positive energy cut off, no mess around with 3 way valves.

no doitall, thats no what i mean the potterton PTT2 is`nt` compatible with a ep 3000 potterton time switch, it causes back feed so potterton tech say,christ don`t` tell me terminal connection on programmers and stats hahaha that stuffs my bread and butter. my point was that some of the poeple...

also doitall what about other engineers coming to this installation with a back to front valve, you my know its installed the WRONG way round what about everyone else? i work mainly on vaillant systems, this installation method you have suggested would never satify the maufactures, an so` THE...

yeah there are loads of heat only boilers on the market, and loads of system boiler, what ever thats not the point, the point is no one in the right mind would specify a combi and a hot water cylinder, its stupid, one or the other. why go to the cost of buying a combi when you have a cylinder...

just going by what vaillant technical said, the vaillant vantage is a pack the cylinder should always be installed with the boiler. AS in formed by vaillant. would`nt start f**kin around with 3 way valves just install it correctly?

cars are required to have an MOT by law, to ensure safety. a unit could be installed by a novice and be technically incorrect, so if services were not carried out how would anyone know? i saw a vaillant vantage cylinder connected to a grant boiler on a `Y` PLAN with no 2 port valve, whats the...

by gone wrong, i dont just mean the worst, water regs to think about also. check-valves,ect...

who you calling a lemon, doitall, you said in your msg `if you posted what the problem was` it did post that in my posting named `Technical helplines........ come on keep up.

citb also, don`t know of any others. telling the customer to fault find on any bit of kit i think is dangerous, ok re-charge the dam bubble,but maybe at this point the customer should be informed of the requirment to service these thing,christ we all know what happens if they go wrong.

doitall see the posting call technical helpline........ by me

my old van must of been a total guy lord then! dam thing! hated hills, no good in plymouth. iam just young anough to know that sor of lingo haha (28) yeah you do have a point softus i just type it out quick, i only stubbled across this site because i was looking for info on a control system...

thanks

sorry mr scatman john

yes it can be done, you wouuld have to design the control system using `normally open` 2 port zone valves.