combi 90 , worst boiler ever?

[CXR100]

had 3 breaking down on me this week! same thing on 2 but one was a right off , hex washers leaking onto ch pump and finishing it!! leaked so much that I couldn't get the pump head off it was so rusted!, pump isolators started leaking , ended up changing the pump , pump unions , all 4 hex washers , the filling loop going into the boiler chamber , a melted prv valve , and a melted aav ! im bloody scared to take the cover off the next one incase all the water gushes out of all the leaks like a tsunami and drowns me , along with the whole village ...... !!! never seen anything leak so much!

 

[Ray Stafford]

Nope. Worst boiler ever was the Myson Midas B.

 

[Best]

Excuse my ignorance, but what make is the "Combi 90" ?
Is it a Grant?
I hate all oil combis and don't work on any of them unless the customer is very nice to me, or the boiler is in good condition. I hate Warmflow Combis particularly.
You could spend longer servicing/repairing one than it would have taken to install it.

 

[Dotty]

Nope. Worst boiler ever was the Myson Midas B.

I shall correct you on that.

The Grant Vortex. Only boiler I've needed to use a club hammer and crowbar on to remove the baffles.

 

[Best]

That's because you didn't service it properly the previous year! :smile:

I must admit the baffles on the Grant Vortex are tight and no tolerence to factory build variations or the shell metal warping a little. You need keep the shell really clean and also need to carry a grinder to shave any tight parts of those baffles.
I love the Vortex if I regularly service them

 

[tamz]

Nope. Worst boiler ever was the Myson Midas B.

Ah but thankfully not many fitted up my way. Not that i complained other than the inconvenience, i was always well rewarded

 

[tamz]

Excuse my ignorance, but what make is the "Combi 90" ?
Is it a Grant?
I hate all oil combis and don't work on any of them unless the customer is very nice to me, or the boiler is in good condition. I hate Warmflow Combis particularly.
You could spend longer servicing/repairing one than it would have taken to install it.

Warmflows are always at least a half shift and always need baffles

 

[tamz]

I shall correct you on that.

The Grant Vortex. Only boiler I've needed to use a club hammer and crowbar on to remove the baffles.

I don't particularly like grants either but i'll take the cash

 

[Dotty]

That's because you didn't service it properly the previous year! :smile:

I must admit the baffles on the Grant Vortex are tight and no tolerence to factory build variations or the shell metal warping a little. You need keep the shell really clean and also need to carry a grinder to shave any tight parts of those baffles.
I love the Vortex if I regularly service them

First time I've serviced the thing.

Next year if I do it I'll make sure I've got scalebreaker with me.l

 

[Dotty]

I don't particularly like grants either but i'll take the cash

Ba dum tish!

 

[tamz]

First time I've serviced the thing.

Next year if I do it I'll make sure I've got scalebreaker with me.l

Ye can get them out with a toffee hammer. A wee dunt and they come out easy enough depending how they've been running right enough. I'd one that took me a good half hour to pull them.
On the bright side , at least you can put them back in.
It could be a warmflow. They come out no problem cos they are melted away lol

 

[SimonG]

Combi 90 sounds like a warmflow. Money on not enough expansion. Same with most leaky sealed systems. Lack of maint or p poor installation.

 

[oz-plumber]

Nope. Worst boiler ever was the Myson Midas B.

Are / were they the ones you made least money out of?


Or are they the ones that Plumbers dumped on your counter and said

" I want a warranty replacement" - yes, the entire boiler

 

[Ray Stafford]

Are / were they the ones you made least money out of?


Or are they the ones that Plumbers dumped on your counter and said

" I want a warranty replacement" - yes, the entire boiler

In fairness, it was a gas boiler - when I posted I missed the fact that this was the oil/solid fuel forum. The Myson Midas B was an experimental combi back in the late 80's - it was the first to use twin pumps instead of a diverter valve.

Cutting edge technology back then! I sold 36 of them onto a local site, and 34 of the 36 failed on installation. The Myson engineer more or less lived on site for about a month.

Oddly enough, the fan flue version - the Midas SI - worked fine.

 

[Rickster123]

Buderus have to be right up there with the worst. I remember fitting them for southampton city council. They were packing up quicker than we could fit them! They decided in their wisdom to stop using them and started fitted isars instead!

 

[lame plumber]

if you want stupid baffles, try getting rayburn ones out with just a length of steel wire to do it with, has to be the most stupid design!!!!!

 

[Roger Welton]

and the oil nouvelle ones that crumble as you try and encourage them out, tapered baffles into a tapered opening, there's an idea

 

[CXR100]

firebird did the combi 90!