Gas and Oil Home Heating Furnaces - FILL VALVES FOR FURNACE

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03-03-01, 09:28 PM
I HAVE BASEBOARD HOT WATER HEAT OIL FIRED.NO AUTO FILL VALVES ON SUPPLY FOR HEAT.MAN VALVE FROM SPLIT AT CITY WATER SUPPLY SHOULD VALVE BE LEFT OPEN ALL THE TIME???ALSO HOUSE TEMP GETS TO 75 DEG SOMETIMES AND TSTAT HAS BEEN RULED OUT.FLOW VALVE BAD MAYBE??WHEN FURNACE HAS BEEN OFF FOR MORE THAN TWO HOURS STILL HAVE HOT PIPE ON BASEBOARD SUPPLY AT LEAST TEN TO 15 FEET FROM FURNACE.THANKS IN ADVANCE.

arkayassoc
03-06-01, 05:26 PM
Do NOT leave the manual fill valve open all the time.

Do you have an expansion tank? Do you have a pressure guage on the side of the boiler, if so, what is the pressure reading?

Rick
03-06-01, 10:52 PM
i didnt think that city water press on system all the time was good for it.thanks.yeas i have exp.tank and press is 20lbs with system off.boiler temp is190.is this ok????

arkayassoc
03-06-01, 11:57 PM
Benny,

My pressure runs 13 to 15 lbs and temperature averages 170. You may have a little too much water in system. Check the expansion tank to see how full it is (tap on it to see if you can find the water level).

You may need to drain a little water out of system, but as long as relief valve works, you should be ok.
PDF
03-07-01, 02:57 PM
Whether you are on city water or well water main feed can be left on.I have yet to work on a system that DID NOT incorporate a water regulating valve.The downstream pressure is set for 15 psi...It insures that a constant supply of feed water is availible if necessary.PDF
arkayassoc
03-07-01, 04:31 PM
PDF,

I am not sure I understand your post. Can you tell me how you insure not cross-contaminating your potable water supply, if you leave the main feed valve open all of the time?

Have you ever drank water after it has circulated through a boiler and radiators for a couple of months?

Rick