Worcester 28i RSF Constantly at 3.5 bar help!!!

[nickso]

I thought 28I was Junior which is Bi Thermic!!

im not talking about a 28i junior. im talking about a 28i rsf as per the op's title.

Bi-thermic as I understood it would mean two circuits of water directly heated by gas, with primary water assisting the secondary heat up (a la Puma's)

this sounds more like the boiler im on about. im not familiar with bi-thermic though. is this a fancy name for twin pass? i cant remember what the heatex looks like. are the primary and dhw circuits arranged so they can cross leak on this heatex?

 

[Terrywookfit]

Terrywookfit wrote:
I thought 28I was Junior which is Bi Thermic!!

Nickso wrote:
im not talking about a 28i junior. im talking about a 28i rsf as per the op's title.

So is it
28cdi Rsf
28i junior Rsf
28si 11
280Rsf

Or none of the above!!

I just looked on W B website and cannot find what you are suggesting!!

 

[nickso]

Terrywookfit wrote:
I thought 28I was Junior which is Bi Thermic!!

Nickso wrote:
im not talking about a 28i junior. im talking about a 28i rsf as per the op's title.

So is it
28cdi Rsf
28i junior Rsf
28si 11
280Rsf

Or none of the above!!

I just looked on W B website and cannot find what you are suggesting!!

its none of them

28i rsf. gc-4731154

not a popular model. perhaps you have never seen one before.

 

[clf-gas]

 

[nickso]

thats the bunny