Thank you, sir!

sir I have a question, this aqua signal ignites the gas boiler but is it a continous signal or just a one time ? the reason i am asking this is , i am doing a project and i have connected a electric heater to heat water but i dont want to run both heaters at same time and want to save my gas money so i figured if i just block this aqua signal , i can stop gas boiler from igniting ! so please if you reply it will be a huge help ! thanks in advance!!

Without a doubt it is an excellent app, it helps me a lot.

and how do you feel in an era of 'Smart TRV's' - eg the HIVE / Honeywell digital ones

What about Sentinel X1000?

2:47 Shame I can't see numbers 4 to 9 as they're covered by a thumbnail for the next video. 🤦‍♂

Short circuit test... Shouldn't the reading be over 20 ohms 🤔 If under 20 ohms, then there may be a fault on a component...like fan or Pump 🤔😉

If it's that good no more heating engineers

Hertz.....I don't understand either

This is a horrible idea.

13kw not enough for a house ? Enlighten me please ?

I still love your videos George 🙏🏻

When you are mentioning gas pipe sizes, I think you will find it’s 35mm and not 34mm 👍🏻

You apps mite be great but the videos still don’t play

Very informative

Thank you Sir

Mr Combi, great channel with sound information thanks. Can you help me with a solar thermal tank project. I have a Valiant Ecotec which is a cracking boiler, I am fitting a thermal solar tank. Now some boilers can take the preheated water in and top the temp up and others can't. A blend valve to limit the input temperature is suggested on some installations. Now can I feed my boiler from the tank or can I tie into the hot water pipes via a diverter that favours the solar if hot enough. Thanks for any info and thanks for you straightforward presentation.. Best.

Hi I have just bought the fault finding app from Apple app store and none of the videos play. How can I get a refund please. I have try emailing you from the app and the email was returned saying couldn’t find address

Is the fault finding book the same as the fault finding app because I use a tablet when I’m out on the job. Plus a few people have commented on the videos not working on the app has this now been fixed. Great content by the way

I love tea but unfortunately 99.9% of my customers tea goes back down their sinks...

I wish you showed how to replace that old thermostat to the new o, and if we have to connect the same wiring, 2 live 1 neutral plus sensor.

I didn't know how to run a business despite having so many talents. I did also failed.!

Your video is very nice.🥰🥰🥰

Where to get more information sir?

Interesting, as usual, I would like to know more. 🧐🤔

Hi George. Just sidetracking slightly but I have a customer who upgraded their Landis & Gyr roomstat to an RF EPH stat but didn't want the old stat removed. The installer set the old stat to max and told them not to use it but use new RF stat. This is correct as far as I'm aware but I think they have been moving stat probably due to habit. So, going to link wires behind stat just wanted to confirm which ones to link out. Thanks

I feel my radiator nearest the boiler get slightly warm when running a hot bath. Is this normal for a combi? I think it's done it since I moved in 12 years ago

that's vaillant off my list then. my ideal has a preheat button which you press once and it puts preheat mode on - none of this press triangle square and x, hold left joystick down, count to ten, turn round and touch your toes nonsense.

Tinnitus, have had this for fifty years and it is my annoying friend !. Very important you don't focus on it, accept that it is there and get on with life. Mr Combi has given some good suggestions and I use these techniques to keep the tubes clear. The Eustachian tube is normally closed but opens when we swallow, yawn or chew. This allows air to get into the middle ear and any mucus to get out. This keeps the air pressure equal on either side of the eardrum. Having equal air pressure on each side of the eardrum - and the middle ear free of mucus - helps the eardrum to vibrate. This vibration is needed for us to hear properly. My analysis of some forms of. Tinnitus can be the reproduction of a tone which you have had long exposure to including something like a computer fan, for example you hear a constant tone in a space from something, the brain counters that like noise cancelling earphones and turns down the gain for that frequency. When you leave the space the brain no longer hears the tone and but is still cancelling the tone but as it is not there you hear what the brain is producing. Don't Focus on it and do speak with your Doctor about your hearing. Good luck I am taking my friend for a walk..... Good advice Mr Combi

Well done . Best explanation so far

Any luck with the apps videos as yet ? Mines has been off line for a few months now. I even tried re-purchasing them with no luck

Hi what causes gas rate to be too high and over what manufacturer states

This video is a life saver! I’m usually pretty good at figuring out stuff but I could not figure out how to set my heating timer to once a day! Thank you so much! ☺️

I WISH I HAD SEEN THIS VIDEO A LONG TIME AGO , THANKYOU FOR YOUR VALUABLE INFORMATION !!!* :)

"In my wife's house" 🤣. So true...

10.20am, good video, very informative. Question How do you work out the size of an expansion vessel. For instance a system with 17 radiators, mostly large, 3 zones, to 50 kw, commercial boiler, no expansion vessel present. Ray Majrowski. REM plumbing and heating. Thanks.

Ideal sell their own - for our Heat Only Boiler with S Plan Plus its over £500 for the Controls & 2 Zone Extension Kit - just ridiculous!

Thank you

Yr information is clear n prompt and trust me your a very good teacher in explaining thanks

Thanks for this helpful video but in the places (8 mins 35 seconds onwards) where you talk about the blue wire, we can't see the wiring mistake you are referring to in the video and the discussion about the blue wire is not clear. Could you please show the wiring of the old thermostat that has been done incorrectly and the new correct way for a digital thermostat. I have just installed a digital one(Siemens RDH100) and I used only the yellow and red cable because those were used in the old Honeywell I was replacing. The blue wire was already cut off but not sleeved or taped up. I replaced the Honeywell because I was suspicious that it was not turning the heating off in time. So potentially overshooting and strangely it was also not turning on the heating early enough either.

شكرا جزيلا لك

Hi George, If you don’t mind me asking, how come you don’t the in-person courses anymore? Could you recommend where I could go? I’ve just finished my MLP and while your books and apps are very helpful, I need some hands on experience. Many thanks

Thank you very much, for a very kind explanation.

Hi, my hot water pump is constantly on even though the hot water and CH is off. I changed the motorised valve but the issue remains. Any idea? Thank you

how about, pump makes litteraly 0 noise? and still not working, not even the pipe hot water aint working which i supose does not relly on pump... wtf is wrong with that stupid thing... It starts burning, it starts heating water, then you can hear the switch and immediately shuts it down, and the 'sand clock' diode keeps blinking

Is that Frank Bruno’s voice dubbed over ?

Hello! Can anyone help me with my issue? Namely, from some reason, heating is not working, and I tried to check the pump, by unscrewing the cap as in this video (to try to start it manually by screwing the inside screw), but when I removed the cap on the pump, water started to come out in the stream. I closed it quickly, as pressure started to go down. Is it normal thing? Do I need to ignore the water stream and to try quickly to unscrew the screw inside the pump to check if it is jammed?

Hello there, I have the same set up that you show with the Honeywell thermostat with the wheel and the ST9100C. I want to replace with a smart system, if I choose the Honeywell T6 Wired smart, I need to put the thermostat with the display instead of the one with the wheel and the receiver box instead of the ST9100C module correct? Thank you for your answer.

We were always taught to test both Solenoid Coils separately George. Where can you buy your wee Test Board mate? Thanks for sharing luv👍👍

Do the same rules apply if you have a diesal oil system boiler with a 14 litre internal expansion vessel using in conjunction with a 300ltr unvented cylinder for both CH & DHW?