Recent content by CountryFan

Correct. Have you turned others off? Did balance the system?

If the valves are to remain the same, then no drain down needed imo and definitely overpriced if that’s the case.

If products of combustion were to enter then illness or death dependent on certain factors. Not really, it would mean the flue would need to be moved again. If no products of combustion are circulating then it’s not to standards, if they are then it’s immediately dangerous. Others and myself...

Sorry, yes, think it’s a bit steep. Up to you with winter coming though. I think it’s should be half that.

Installed the correct way up? Lockshield open correctly?

Yes that’s correct Imo, yes.

From mi's and hot water and heating installation council (second paragraph).

I've read on here that 2 ports are supposed to last longer, we only have about two 3 ports in our housing stock as vast majority are combi's, some with zonal heating.

Getting a combi would have some benefits, but not many and it would require a conversion (changed from conventional system to combi) a lot more than your quote. I would get it changed to an S plan (X2 motorised valves) system rather than keep the 3 port valve.

Yet have tried to cut corners and left it unfinished without talking to you about it. Also, if you have the manual and it's the same as I've just looked at, look at Q of the flue termination section and using a neutraliser for the condense (section 7).

Usual size is 1/2".

Because some people aren't arsed or not interested. I have explained this many a time to our customers (social housing) and unfortunately they don't seem to want to know. Perhaps they don't like or are afraid of change?

Maybe consider a fixed price repair from Vaillant as the mass flow sensor I believe can be expensive, whereas Vaillant should be cheaper for parts

It can also be used without

I nearly suggested that it may be on the same flow and return as I've only ever encountered it once, but didn't because you said it heated up.