Have HVAC Questions? Ask an HVAC Expert for Answers
All work to be done by licensed professional. WE KEEP GOING UNTIL YOU HAVE THE INFORMATION YOU NEED, I come and go. This is step ONE.
Please look at this link, and confirm this is the boiler you have or not. Thanks
Tell me if the base board heat works or not.
and tell me if you can about how old the boiler is
We can go from there until the situation resolves
This is the exact boiler. The base board heat works. I just bought the house from an estate sale so information is fleeting, but best I can figure is 4 yrs old
If the vertical tube comes from the boiler it is the pressure relief valve that is leaking, it has a floppy handle hanging from the top of it in most cases
yes. this is what is happening.
that is the manual release lever... put a bucket under the tube and trip the handle about 20 times, that will bounce the valve seat up and down and re-seat the valve in many cases.. if that fails the valve should be replaced
ok. i will go try now
Next we need to test the hot water flow rate in order to assess any water scale in the heat exchanger
Fill a one gallon jug from the kitchen hot water tap wide open, and again from the cold water tap and tell me how long each took in seconds
we can go from there.
I check a couple of times and it appears to be 53 seconds for cold water and the same for hot water
that was the kitchen sink
in the basement sink i got 15 seconds for cold and 48 seconds for hot
is anyone ever going to answer back. its been 2 days
Hello again. the just answer servers have been down, all day yesterday...and about half of today so far.... hopefully they are fixed now...
I will do my best through all this.
Did the water quit dripping from the pressure relief valve when you lifted the relief valve handle and then let go of it, so the valve snapped back shut? That will often re-seat the valve and stop the leaking.
Thanks for doing the flow rate tests...
from those tests it appears the heat exchanger for domestic hot water is OK and not clogged with water scale. (mineral deposits).
See page 23 of the manual, tell me if your system has three pumps or just one pump... the diagram on the left shows a pump on the boiler and additional pumps for the radiant heat and another one for the domestic hot water.
the diagram on the right shows just one pump, and thats on the boiler. I suspect that is what you have. zone valve #5 controls the flow of boiler water to the domestic hot water heat exchanger... that valve is controlled by a thermostat (not shown in the drawing) the lets the boiler water heat the domestic hot water... that thermostat or its sensor is going bad.
Let me know what you find on your end.
We can go from there
thats the link again in case you need it