lucky customer to even get a plumber out to do a job these days 😂

It would be interesting to know some figures though. Also why they choose a heat only and why keep it open vent. Also these days I'd be trying my hardest to get modulating controls and hot water priority too. I would expect designing out the header would be totally possible in my opinion. Save the money for the header and spend it on a sensoHOME and get the boiler condensing for 90% of its life instead on 10%.

They connected them in the wrong place, they should have connected them them at the neutral point

Silly money for what it is though

I was a little curious too... No criticism but why were the feed and vent not connected onto the horizontal pipework ? I learnt something from your apprentice too. I new about the pipework positioning, lengths, angles, the problems but not the name... . Every day is a school day ! Thank you

ps separately in mean ? - The feed and vent pipe

Curious about the LLH, why is it the sensible option for heat only connected to an old system?

Wondering the same

@@martinbinney Foremost hydronic separation from the system, helps eliminate cold shocks to the boiler and increases efficiency when creating a hot water priority system with 3rd party controls/tanks etc. Also acts as another buffer to prevent dirt making it's way back to the 6mm water ways on a high efficiency condensing gas boiler. Acts as a volumizer to help prevent the boiler over heating, It's not pressurised so it acts as a heat dump should the system shut down but the boiler still be firing. Prevents short circling as there is a buffer to heat etc. Sidetrack - Vaillant/GlowWorm and other companies had a habit a few years ago of putting thermal links on their heat exchangers which would physically melt if the main heat exchanger couldn't dissipate the heat fast enough, effectively writing the boiler off and not being covered under warranty. A common occurrence when people used to do a "hot flush and dump". New boilers just use the temperature sensors to log the information which can be checked by an engineer to see if the boiler has been run out of scope.

@@effervescence5664 Thanks for the info, it is appreciated.

All to do with flow rates, and how much flow you can get going through the boiler, low loss header means the secondary pump and draw off the header rather than through the boiler, or something like that🤔

Gas boilers will be around for all of your lifetime. Stick with it!

@@Sithomas80 thanks mate

Uni strut, most plumbing and electrical merchants will keep stock, hope that helps Shaun.

@@chrisgunn121 That’s great Chris👍 many thanks

Makes for an easy life for the boiler and pumps, nothings ever working against each other

@@spence2403that’s not why it’s fitted though

@@greenyamo1321 Hydraulic separation, just an easier way of explaining it

@@spence2403 it might be, but neither are the reason for fitting one.

@@greenyamo1321 enlighten me

Yeh…Surrey flange, Essex flange….done

But actually I’ve seen how he’s done that in shower pump instructions

@@tomstrutton4351 I thought that but teeing off it pointing down won’t cause air to go in to it anything tilting up unless under aload of pressure will go up that’s why when fitting cylinders got to be minimum 450 with a slight kick facing up for air that’s how I was taught at collage

@@tomstrutton4351 I know it’s not wrong because them two are on it but it’s just strange

They did

2 separate pumps

@@j.j8114 yes but he doesn’t have two different flow rates? He’s now got two pumps for no reason? Plus he has created distortion for no real reason??

There little justification for a llh here, the pumps over sized to as the dt has widened so needs less flow.

Pressurising the old existing system is not advised, Pete did explain this in the video.

@@Sash_Window and why not?

@@56ty78ui so why would you ? Are you at the job ? Did you survey the job ? Do you know the age of pipework all things taken into account? There’s clearly a reason why thev did it if was your average heating engineers i would understand your scepticism but tbh i trust these 2 with there layout

@@56ty78ui because old pipework can leak when you increase the pressure

You obviously have a lot to learn