Boiler Fires But No Heat - HVAC - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 11-07-2007, 03:04 PM   #1
Newbie
 
Join Date: Nov 2007
Posts: 1
Rewards Points: 10
Default

boiler fires but no heat


I'm a renter in Boston getting ready to get the boiler started for the season. I have an old gas boiler that will fire up but not pump heat through the pipes/radiators. My sight glass window is full. I have drained it until the auto fill comes back on, and it fills the sight glass all of the way again. I'm not really sure of what I'm doing here, so I'm just looking for a little advice. Am I correct in assuming my sight glass should be 1/2 to 2/3 full? Should I keep draining the system to clean my auto-fill mechanism of debris? Should both knobs (on top and bottom of sight glass) be open? Thanks in advance,

John

Advertisement

janhuge is offline   Reply With Quote
Old 11-09-2007, 05:52 PM   #2
I have gas!
 
Clutchcargo's Avatar
 
Join Date: Mar 2007
Location: Massachusetts
Posts: 1,783
Rewards Points: 1,018
Default

boiler fires but no heat


There's a valve just below the sight glass. Every month you need to drain a gallon or so off to keep the top off system working properly. The sight glass should be readable on the sight glass, you should be able to determine the level of the boiler, so anywhere between 1/3 - 2/3 full.
It sounds like the boiler is too full and and not generating a lot of steam to heat to radiators.

Advertisement

__________________
I tear things down and build them up.
Clutchcargo is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Hot water boiler furnace-insufficient heat Nashman HVAC 2 11-06-2011 07:15 PM
Getting a House..heatpump or no? DavidsCPU HVAC 10 02-07-2010 11:22 PM
Steam Heat still making banging noises helpless handyman HVAC 101 01-04-2008 04:43 PM
convert from gas boiler to electric baseboard marks5894 HVAC 1 10-21-2007 01:22 PM
Steam heat vs Hot water heat helpless handyman HVAC 5 10-03-2006 09:57 PM




Top of Page | View New Posts