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Posted by HeatPro on January 22, 2005 at 13:39:48:
In Reply to: Need help w/ old Ideal boiler & pressure settings. posted by Chris on January 22, 2005 at 08:50:57:
Put the pressure back the way it was. The steam vents are damaged at over 4 psig. When the boiler reaches 1 psig, that is because steam is in the system - no steam, no 1 psig - 1 psig there is steam. Your problem is due to the vents not working properly and you have made the problem worse by raising the pressure.
Get the pressure where it was and get the vents to work. Vent openings that are too small or insufficient venting, likely first caused by a clogged main vent, will not let enough steam get to the radiators. The burner is large enough because it is shutting off; but the steam is not getting to the radiators fast enough and enough to let the radiators get rid of the heat. Fix the vents.
Once the vents are sufficient as proved by sufficient heat, then work on the burner. If the burner still is off too long during the full hour in the coldest weather, perhaps half the time, you can have the nozzle reduced so that the burner is on for 40 minutes out of 60 minutes, which will give a gentler steaming rate and more time for air to leave during the heat up cycle.
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