Please forgive my ignorance on this subject -- but I am at a loss for why this is going on.
Recently -- say, over the past month to six weeks -- we have had a serious reduction on hot water pressure in our house. Cold water is fine -- but there is very little hot water pressure. So much so, that showers are almost a waste of water. I have checked the hot water line between the boiler and shower (which is the end of the hot water line) and there are no leaks. I have fully bled the radiators, they are all set.
Where I get confused is the summer/winter water heating -- I do not have a grasp on how it really works and maybe that's part of the issue... but I do not know... I don't even know what or where to look to see where that issue might be.
The water pressure in the boiler was reading 11ish -- I upped it to 15 to see if it made a difference, it did not seem to make any noticeable difference out of the faucets. Someone I had service the system a little while back said the pressure should be between 12-15.
So here are my questions...
1. How do I troubleshoot this?
2. What should the pressure be in the system?
3. What is the difference between the water that flows to my radiators, and the hot water that goes to my faucet? I see the water go into the boiler and I see where it comes out.. and I see where it goes to a holding tank... but beyond that, I'm pretty much lost.
ANY help would be appreciated immensely!