On Tue, 30 Nov 2010 09:06:18 -0500, Tony Miklos
wrote:

On 11/30/2010 12:58 AM, Joe wrote:
On Nov 26, 10:21 am, Tony wrote:
On 11/26/2010 10:07 AM, Joe wrote:

On Nov 26, 7:54 am, wrote:
Vented?
Meaning there is a tank at or above the highest radiator and the tank
has an open top? If that is what you have the tank water level has to be
above the highest radiator.

The boiler has a vent/filler tube on top, with a rain cover. It
passes air freely.

Where is the boiler? On the roof? Higher than the highest radiator?

Outside in the yard. Lower than the lowest radiator.

Well no fricken wonder the vent sucked air in. Better call the place
that installed it.

I'm done giving standard radiator advice to Joe, because I have no
experience with this type system.
When he said he filled the "boiler" with a hose through a hole in the
top I said "Whoa."
Joe, you have to go to the company who put this boiler in to get any
good advice.
It's probably a one-off system too.
Good luck.

--Vic