Search results

hard to confirm though, what form or air?? induced/leakage air or dissolved air being released at the hottest point due to lack of heat transfer???? air how it got in there?? who knows, crud build up?? possibly?? just trying to cover as many things (methodically) in the time space available...

thanks for the input, might better if you just answer on one then....... :wink: anyways, update for future ref for other people who have similar issues, thats what web forums are useful for......... trying to help overcome problems/issues. the system has been restored to its 15year old...

just trying to gather as much info as possible to take a methodical faultfinind approach rather than attacking it randomly, cheers :wink:

cheers john, will do. i'll give it a go. its/i've had an outing the last day or two so i'll let it settle down and see how it goes. its definately worse on full fire, and the tech guy suggested there may be 15 little airpockets in the coil...... just a bit puzzling, and a question which...

cheers, viess engineer just said it was a flow problem, but offered no suggestions as to what may be its cause. to quote on his check sheet " bolier confirmed kettling, customer advised flow problem" spoke with viess technical who suggested it may be trapped air???...........so i have...

Good morning peeps. Bear with me.............this is a 2 parter !!!! Nearly 2 years to the day my newly installed Viessman 100W boiler has started kettling and will not behave. Bit of background on the system. I installed it on an open vent system, changing from Y-plan to S-plan, added a...

Meanwhile back at the Y to S-plan dimema :lol: on to the controls :? I'm thinking Honywell S-plan pack for ease of use, compatibility and good reputation. Not the smartfit which seems easy plug and play stuff, as they only seem to have two outputs for CH & HW valves? I need three...

Yeah, own pump and blender. Dunno if I can blend smoothies with it yet though :lol: Thanks for the reply

As part of an attempt at zoning my CH, I've come to the conclusion is more beneficial in the long run to covert to S-plan from my exisiting Y-plan, open vent system. Am I being a bit simplistic in thinking I just need to junk the 3 port valve sub in 3 x 2port (CH, DHW, UFH) valves and install...

I'll probably have both the existing heating on plus the new extension UFH loop & rad in there at the same time. But it would be nice to be able to just have the UFH loop on earlier to warm up Is there much hassle changing from a 3 port to two 2 port valves? While the kitchen is in pieces...

Had a quick look at their sub mounting kit. Will it fit inside a normal wall hung kitchen cupboard ?

Cheers, already got the the UFH mixer, exisiting pumped system etc so really don't want to go down that route. Looking at 3 channel programmers at the moment. Any suggestions?

I'm about to embark on the great adventure of fitting a new boiler to my extension I'm building. I've removed a small rad from the kitchen and installed approx 10m2 of UFH. A couple of questions: My exisiting Ideal boiler is coping, just about, with the system I have at the moment and gives...

Hi All, I'm at the stage of researching the underfloor heating I'm putting in my small 3x6m extension. The total floor space to be heated minus kitchen cabinets etc will be appox 10m2. I've got a rad in an adjacent/connected room which I'm keeping and was wondering whether to go with a...

Hi All, I'm in the process of constructing the slab foundations prior to pouring the concrete for a kitchen extension. I'm planning on installing wet underfloor heating and looking for the best way of insulating the slab. My architect has drawn the slab as such, from kitchen floor down...