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Rob J
@verizon.net

Rob J

Anon

Slant Fin Gas furnace - water dripping from overflow pipe

My 7 year old slant fin furnace has started to drip water regularly from the overflow pipe. I have to empty small bucket of water each day. Any suggestions on what's causing this and what I can I do fix it?

Thanks,
Rob

joe40
join:2005-11-26
Danbury, CT

joe40

Member

if it hot water heat there too much pressure or a bad pressure release valve.

when hot check the pressure gauge

you said furnace so I am not sure what that can be

garys_2k
Premium Member
join:2004-05-07
Farmington, MI

garys_2k to Rob J

Premium Member

to Rob J
Is this a hot air furnace, or a hot water boiler?

jack b
Gone Fishing
MVM
join:2000-09-08
Cape Cod

jack b to Rob J

MVM

to Rob J
What does the pressure gauge on the boiler indicate the system pressure is?

cdru
Go Colts
MVM
join:2003-05-14
Fort Wayne, IN

cdru to garys_2k

MVM

to garys_2k
said by garys_2k:

Is this a hot air furnace, or a hot water boiler?

Slant Air is a brand name of boilers and related hot water baseboard heaters.

Cho Baka
MVM
join:2000-11-23
there

Cho Baka

MVM

said by cdru:

Slant Air is a brand name of boilers and related hot water baseboard heaters.

That makes sense!
(Thank you)

tp0d
yabbazooie
Premium Member
join:2001-02-13
Bulger, PA

1 recommendation

tp0d

Premium Member

Your expansion tank is not doing its job, and the expansion in the system is causing the pressure to go over the normal 30psi, and drip from the relief valve.

If you have an old style air over water expansion tank, it needs purged of its water. If you have a new style bladder tank, it needs refilled with the proper charge of air.

Could also have a bad fill valve that isnt shutting off at the proper pressure, but thats less likely than the expansion tank.

If you dont know what I`m talking about, you need to call a professional. Your relief valve may also need changed, or boiler damage from pressure and fresh water can result.

-j