By way of a quick update ..... last Thursday and Friday a local Ideal MAX accredited, local, well respected firm installed a 32kw Ideal Vogue MAX combi for me. Two blokes plus an apprentice. HW cyl. out, F&E out, CW storage tank out ... Ideal magnetic filter, Altecnic shock arrestor & auto air vent in. They fitted my rad and TRV in airing cupboard and kept the pipework concealed under the floor in there wherever feasible. They connected my 28mm gas Tracpipe to the boiler via a metre or so of 22mm copper.They connected the mains cold water via my 22mm dedicated supply taken immediately off the 25mm MDPE (included was my own Reliance drop tight pressure reducing valve and Pegler lever valve for isolation purposes).
Everything was pressfit ... hugely neat ... really impressive.
I was concerned that the 10mm microbore might leak from the underfloor manifold when the system was pressurized - but it turned out that there isn't one, and there were no leaks anyway. The gauge on the combi is one bar at rest and remains constant for the past week
I was concerned about remote taps and toilets detracting from the shower performance. It seems I was largely worrying unduly although if you fully open the hot sink tap right next to the shower then, understandably, the shower definitely doesn't like that. ... othe draw off's don't seem to cause much concern. I haven't yet tried two showers together. I have fitted a pressure restrictor in the shower hose (MIRA) which is a great improvement ... before fitting it the shower was much too powerful and the MIRA thermostatic mixer wasn't keen on trying to restrict the flow, but now it's fine ... and I
haven't yet adjusted the Mira mixer (via the control screw on the back of the mixer) from LOW pressure to HIGH pressure .... it might be better still, or it might not?
I did do plenty research but I struck lucky with the company and the installers - they were diamonds and the pipework is as pretty as a picture. They didn't do a power wash but filled up with Adey cleaner and will return on Friday to flush out and refill with Adey inhibitor. I have dosed the system with Calchem Three In One at the rate of one litre annually for the past 10 years and the water is clear.
They fitted an Ideal HALO wireless programmable thermostat. There's just one cable feeding the boiler, a live neutral and earth from the consumer unit's dedicated circuit, via an FCU in the airing cupboard. It remains to be seen if I need a 60 watt tubular heater in there for use in the summer to dry the towels.. I haven't got a dual fuel towel rail in the bathroom.
The flue is via a tiled garage roof and they had a roofer attend for the slate and the internal flue is beautifully run. They used a laser device when installing much of the stuff and it shows. Its gorgeous (if pipework can be gorgeous.)
I've spent literally years on here trying to discern the best (for us) system (perhaps not every single day) - thanks muchly to those who have advised (the
vast majority for the better, one or two perhaps ever so slightly less so,
Bernard ). I hope the stainless HEX pays dividends and hope I don't need to find out how good Ideal's customer service is.
Thanks again.