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yes im changing valves and tails but wondered what size rad to put in was thinkin maybe 1200x600 or 1400x600

ok adl, by this do you mean run the pump backwards???

was wondering is there a sure fire way to test a pump that spins but not sure if its fast enough??

hi all i am renewing 2 rads 700 x 1700 for some modern ones wha would you fit in their place? i know newer rads dont have to be as big for same effect but just wondered what you guys normally do?? cheers :wink:

nice1 ill check for that pal that would make sense :?

is it an open vented system?

heatline c24 combi was left off for a few days and now hw is ok but on ch boiler fires up overheats and cools down continous cycle the pump is spinning as i tested it with one of those grundfos gadgets but not sure if its spinning fast enough. is there a sure fire way to test a pump the upstairs...

get some taties down ya lad.

:twisted: :twisted: :twisted: hmmm where should i shove that pipe???? :lol:

??????????????? youv lost me kev :?: :?

email added

thanks all, some very helpfull posts i know the basics and im not too bad with new systems but the old ones are my weakness and converting from old to new i have struggled with but usually get there in end but would just like a better understanding and hopefully gain more confidence ill...

hi guys can anyone recommend a decent book on heating systems as i want to learn about heating systems especially old ones and converting to new i know the old beasts can be a bit tricky so i want to learn hope somone can help ta gasgirl :roll:

ok will do, cheers but out of interest what if anything should i use to neutralise after cleaning?? could i swap thermistors over just to try/confirm??

hi guys can anyone advise me on how easy it is to remove a plate hex ona vokera linea 730 and also what to use to clean it and neutralise it etc its running hot and cold every minute or two also would you change the rubber seals??? cheers in advance

i agree, mortar :wink:

once i have all materials i will search for an installer, a neighbour/friend is a gas engineer and works for bg but he cant fit it as he doesnt have own gassafe so he is making sure i have all parts required so when i get somone they can walk streight in and all mateials will be ready and...

thankyous clicked to you all. im still unsure which one to choose. . . i just want to choose the right one for my budget :?

this also looks good, not heard awt bad about these yet AVANTA 28C COMBI BOILER C/W FILLING LOOP (PT NO 34801000) (A RATED) £570.00 EX VAT free horizontal flue included :) i may have some cash left over for a magnaclean :wink:

no discount heating, we have a plumb centre, green bros, cp supplies, pts, wickes, b&q, focus, erm i think thats it. whats your thoughts on gloworm flexicom vs ultracom?? as these come in price range