Navien Combi Boilers

[hard-work]

You can only go so far then you have to draw the line.

 

[Dan Robinson]

No, you just have no idea.

You make silly statements, no doubt for the attention, then shrivel up like an old scrotum when called out.


Now, if you don't mind fecking off, I'm going shooting to celebrate Pater's birthday. See if I can bag an upgrade to yesterday's squirrel.

 

[hard-work]

Dannyboy is up early. I wonder why.

 

[shambolic]

Ideal use a zero governor where the fan pulls gas through the gas valve and pulls air at the same time and mixes it in a Venturi and the pushes the mix through the burner.
This technology is nothing new!
This actually puts more friction in the pipework and would cause the gas pipe to require to be enlarged compared to an older type standard efficiency that requires positive pressure from meter.
That’s why we have a chart with acceptable pressure loss depending on boiler input.
Think on it this way.
The manometer is on a tee off the main route of gas and the positive inlet pressure is pushing the gas up one leg.
When the fan kicks in (the quicker the higher output) it pulls gas into the Venturi and this negative pressure also pulls the water down the leg of the manometer.
If the gas pipe is undersized then the gas can’t get through quick enough.
So your 15mm for 50kw is a complete lot of pish.

 

[Deleted member 221031]

Ideal use a zero governor where the fan pulls gas through the gas valve and pulls air at the same time and mixes it in a Venturi and the pushes the mix through the burner.
This technology is nothing new!
This actually puts more friction in the pipework and would cause the gas pipe to require to be enlarged compared to an older type standard efficiency that requires positive pressure from meter.
That’s why we have a chart with acceptable pressure loss depending on boiler input.
Think on it this way.
The manometer is on a tee off the main route of gas and the positive inlet pressure is pushing the gas up one leg.
When the fan kicks in (the quicker the higher output) it pulls gas into the Venturi and this negative pressure also pulls the water down the leg of the manometer.
If the gas pipe is undersized then the gas can’t get through quick enough.
So your 15mm for 50kw is a complete lot of pish.

But yet Navien have a revolutionary gas valve that can pull more gas through a smaller pipe.

They haven’t realised the information to the UK yet. Maintit knows how it works but can’t explain it.

Please can you expain it to Shambolic. He will be on your intellectual level

 

[shambolic]

But yet Navien have a revolutionary gas valve that can pull more gas through a smaller pipe.

They haven’t realised the information to the UK yet. Maintit knows how it works but can’t explain it.

Please can you expain it to Shambolic. He will be on your intellectual level

Hawl I’m not as thick as that numpty.
I was just trying to put it in a really simplified way for him.

 

[Dan Robinson]

He will be on your intellectual level

He might just about manage the intellectual level of one of Shambo's hounds.

Dannyboy is up early. I wonder why.

Like I said... Time for bang bang:

Hopefully a stray pigeon will fly past.

Surprised Shambo isn't out today too?

 

[Deleted member 221031]

Hawl I’m not as thick as that numpty.
I was just trying to put it in a really simplified way for him.

I know Sham. I’m not taking the pee. Thanks for taking the time to try and explain it to him.

 

[shambolic]

I know Sham. I’m not taking the pee. Thanks for taking the time to try and explain it to him.

I don’t think you could explain it to him as he’s thick as mince.

 

[shambolic]

He might just about manage the intellectual level of one of Shambo's hounds.





Like I said... Time for bang bang:

View attachment 147298

Hopefully a stray pigeon will fly past.

Surprised Shambo isn't out today too?

I’m working!! (Well in the house as no work for me today)
Had another day in the highlands yesterday. For a service in a Logic. 5 hr round trip.
Ps almost no grouse shooting this year due to the hot weather not being conducive for chicks.
Most shoots only had a couple of days but returns were poor.
Ps my dogs are highly intelligent.

 

[fixitflav]

Fix it, that should have read "What model boiler?"

OK. My boiler is a (heat-only) Ideal minimiser SE50, coming uo to 20 years old, if anybody's interested.

 

[Deleted member 221031]

OK. My boiler is a (heat-only) Ideal minimiser SE50, coming uo to 20 years old, if anybody's interested.

That’s got a positive pressure gas valve. The pressure from the meter pushes gas into the burner.

 

[Dan Robinson]

OK. My boiler is a (heat-only) Ideal minimiser SE50, coming uo to 20 years old, if anybody's interested.

Exactly..... Not zero governed.

 

[shambolic]

9.5mbar positive burner pressure on the outlet side from the gas valve.
Try that with a zero governor gas valve. Tell me what you get?

 

[hard-work]

But yet Navien have a revolutionary gas valve that can pull more gas through a smaller pipe.

You are really should not allowed in people's homes. After it being explained to this one by a few people repeatedly he still can't figure it out. This Shambolic one doesn't know the difference either. Sad isn't it. The thing is they actually do think the know. When put in their place the insults come. It shows a lack of education. These people have been trained, not educated. Sad, very sad.