I have had a stove (Hunter) installed for a few months now and I have experienced problems with air getting into the system.
I originally had an oil burner installed in a pressurised system. Since then I have had a plumber install the Hunter stove. At first I presumed that it would take a while for the air to work its way out of the system through regular bleeding - this is something that I would expect.
Prior to the stove installation I never had a problem. I have checked all visible joints and they all seam fine - no leaks. The air seams to accumulate in the top of the stove. When I have a fire in the stove sometimes the water gets very hot and the thermostat does not kick in. If I then lower the temp on the thermostat then the pump switches on and I get a bubbling, gurgling noise from the system. I've attached a diagram of my setup to the post. Note that the bottom of the boiler is lower than the top of the stove, could this be an issue?
Any help is much appreciated.