Gas Fireplace Exhaust - HVAC - DIY Chatroom Home Improvement Forum

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


Thread Tools Display Modes
Old 12-11-2010, 11:53 AM   #1
Join Date: Nov 2010
Location: Ontario
Posts: 33
Rewards Points: 25

gas fireplace exhaust

I have a continental fireplace,12,000btu, it is top vented with a 4"/7" exhaust pipe, I have the termination box for the exterior wall. I am going through an area that has been sprayfoamed(2lb foam) is there any clearance issues that i should be worried about? I have hi-heat caulk for the joints, I know my termination needs to be min 12" from any window/door. If I cut a 8" hole to slide the vent out can I sprayfoam(expansion foam) it in to place?


dhubz is offline   Reply With Quote
Old 12-11-2010, 12:09 PM   #2
Hvac Pro
yuri's Avatar
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 16,018
Rewards Points: 174

I doubt it. Check the manufacturers instructions. Spray foam is not fire rated. Phone a reputable fireplace distributor and ask them what they use. Failure to do it properly and you may void your house ins. Fire inspectors can determine where and how fires start easily.


"Cut it twice and it is still too short".
yuri is online now   Reply With Quote
Old 12-12-2010, 08:32 PM   #3
hardwareman's Avatar
Join Date: Oct 2010
Posts: 1,845
Rewards Points: 1,600

I am currently installing my direct vent fireplace with the same 4", 7" piping ,my directions call for a 10"x11" framed opening through the wall. I believe that will give you enough aar space between the pipe and the insulation.
hardwareman is offline   Reply With Quote
Old 12-13-2010, 04:48 AM   #4
An old Tradesmen
Join Date: Oct 2008
Location: Somewhere
Posts: 34,413
Rewards Points: 7,816

Yep, you need to check the install manual for required clearance, along with your local codes on it. Spray foam is generally not approved to be used against a high temp surface.
beenthere is online now   Reply With Quote

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
Fireplace Smell wanted ! jasonb72 General DIY Discussions 6 08-26-2010 06:02 PM
New project: removal of old fireplace-replace with a new fireplace! MrShadetree0222 Building & Construction 14 10-16-2008 06:12 PM
Can I T my new dryer's exhaust into my bathrooms exhaust? Felipon Appliances 2 01-30-2008 06:53 PM
Possible to build direct-vent fireplace? DIYerself General DIY Discussions 3 12-22-2007 10:07 PM
Complex challenge with bath exhaust fan - need help with solution! Honest Bill Electrical 6 11-02-2007 02:52 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1