I have a very small leak in my radiator pipes because every 2 weeks or
so I have to top up my expansion tank by about 0.2 Bar.Is it possible
to put some Leak Fix product into my boiler system bearing in mind that
I have a 6 month old condensing combi boiler and I cant locate the
exact place of the leak?

What do you mean by "top up my expansion tank by about 0.2 Bar"?

"Tony" wrote in message
oups.com...
I have a very small leak in my radiator pipes because every 2 weeks or
so I have to top up my expansion tank by about 0.2 Bar.Is it possible
to put some Leak Fix product into my boiler system bearing in mind that
I have a 6 month old condensing combi boiler and I cant locate the
exact place of the leak?

"Tony" wrote in message
oups.com...
I have a very small leak in my radiator pipes because every 2 weeks or
so I have to top up my expansion tank by about 0.2 Bar.Is it possible
to put some Leak Fix product into my boiler system bearing in mind that
I have a 6 month old condensing combi boiler and I cant locate the
exact place of the leak?

Steam or water boiler? What do you mean by bar? The term "bar" is for a
measure of pressure.

I'd not use any leak fix products in my system as it is not a permanent
solution, I'd look for the leak. In a steam system, it could be coming out
a vent on a radiator and is normal to have to add water.

I assumed he has a hydronic system because he mentioned an expansion tank.

"Edwin Pawlowski" wrote in message
.. .

"Tony" wrote in message
oups.com...
I have a very small leak in my radiator pipes because every 2 weeks or
so I have to top up my expansion tank by about 0.2 Bar.Is it possible
to put some Leak Fix product into my boiler system bearing in mind that
I have a 6 month old condensing combi boiler and I cant locate the
exact place of the leak?

Steam or water boiler? What do you mean by bar? The term "bar" is for a
measure of pressure.

I'd not use any leak fix products in my system as it is not a permanent
solution, I'd look for the leak. In a steam system, it could be coming
out
a vent on a radiator and is normal to have to add water.

Old radiator valves often leak at the stem and simply tightening the
nut on the valve helps, I would not want to add stop leak just because I
dont know how it could affect the boiler longterm, as the manufacturer.
What pressure is it at on the boiler in lb. Are there any signs of leaks
on the relief blow off. If it leaks you probably just have not looked
hard enough to find it.

YES!! The idiots on this ng show complete ignorance agian. Read the
instructs on the stop leak product and it is intended for leaks in any rad
setup.
I have used BarsLeak with excellent success after watching a HVAC plumber do
the same and bill me $500.
Edwin has only seen rads in polish houses and polaks do not believe in heat
or sanitation.
"m Ransley" wrote in message
...
Old radiator valves often leak at the stem and simply tightening the
nut on the valve helps, I would not want to add stop leak just because I
dont know how it could affect the boiler longterm, as the manufacturer.
What pressure is it at on the boiler in lb. Are there any signs of leaks
on the relief blow off. If it leaks you probably just have not looked
hard enough to find it.

What does a Polish heater look like?

"Rusht Limpalless" wrote in message
. ..
YES!! The idiots on this ng show complete ignorance agian. Read the
instructs on the stop leak product and it is intended for leaks in any rad
setup.
I have used BarsLeak with excellent success after watching a HVAC plumber
do
the same and bill me $500.
Edwin has only seen rads in polish houses and polaks do not believe in
heat
or sanitation.
"m Ransley" wrote in message
...
Old radiator valves often leak at the stem and simply tightening the
nut on the valve helps, I would not want to add stop leak just because I
dont know how it could affect the boiler longterm, as the manufacturer.
What pressure is it at on the boiler in lb. Are there any signs of leaks
on the relief blow off. If it leaks you probably just have not looked
hard enough to find it.

I've actually seen home owners call a steam boiler's condensate return tank
an "expansion tank".

"Rusht Limpalless" wrote in message
. ..
YES!! The idiots on this ng show complete ignorance agian. Read the
instructs on the stop leak product and it is intended for leaks in any rad
setup.
I have used BarsLeak with excellent success after watching a HVAC plumber
do
the same and bill me $500.
Edwin has only seen rads in polish houses and polaks do not believe in
heat
or sanitation.
"m Ransley" wrote in message
...
Old radiator valves often leak at the stem and simply tightening the
nut on the valve helps, I would not want to add stop leak just because I
dont know how it could affect the boiler longterm, as the manufacturer.
What pressure is it at on the boiler in lb. Are there any signs of leaks
on the relief blow off. If it leaks you probably just have not looked
hard enough to find it.

Edwin Pawlowski wrote:

"Tony" wrote in message
oups.com...

I have a very small leak in my radiator pipes because every 2 weeks or
so I have to top up my expansion tank by about 0.2 Bar.Is it possible
to put some Leak Fix product into my boiler system bearing in mind that
I have a 6 month old condensing combi boiler and I cant locate the
exact place of the leak?

Steam or water boiler? What do you mean by bar? The term "bar" is for a
measure of pressure.

I'd not use any leak fix products in my system as it is not a permanent
solution, I'd look for the leak. In a steam system, it could be coming out
a vent on a radiator and is normal to have to add water.

If water must be added to a steam system, that means that water and/or
steam is leaking from the system. Personally I don't consider that
normal, and in the case of our two-pipe (old) steam system, the only
time extra water seems to be needed is when blow-downs are performed.

Of course, all the radiator valves have been replaced, and the system
is tight enough so that a partial vacuum is drawn when the gas is off.
That vacuum lasts a day or two with the boiler idle. --Phil

--
Phil Munro Dept of Electrical & Computer Engin
Youngstown State University
Youngstown, Ohio 44555

This is a domestic gas central heating boiler known as a condensing
fanned combi. It does not have a header tank and therefore to
pressurise the system you fill up the expansion tank with water to a
pressure of 1 Bar ( 15psi).The reason I am asking is because I am not
sure if you can use a leak fix product in this type of boiler without
damageing it