New RSF focus 250 zero clearance

Newtofire

New Member
Dec 12, 2017
2
Vancouver
Hi there i'm buying my first wood zero clearance fireplace. We decided on the RSF focus 250 because of the small size with a fairly large viewing area. We are installing it in a wood chase using 7inch exxcel chimney. What i'm most worried about is heat buildup in a wood chase and the fire hazard. I know that you only need 2 inches of clearance to combustibles but what about heat buildup within the chase. Any suggestions would be appreciated to fire proof the chase as well as venting suggestions to allow the hot air to escape.

Thanks Mike
 

bholler

Chimney sweep
Staff member
Jan 14, 2014
18,617
central pa
Hi there i'm buying my first wood zero clearance fireplace. We decided on the RSF focus 250 because of the small size with a fairly large viewing area. We are installing it in a wood chase using 7inch exxcel chimney. What i'm most worried about is heat buildup in a wood chase and the fire hazard. I know that you only need 2 inches of clearance to combustibles but what about heat buildup within the chase. Any suggestions would be appreciated to fire proof the chase as well as venting suggestions to allow the hot air to escape.

Thanks Mike
Follow the install instructions amd you will be fine. It has been fully tested.
 

bfast250

Burning Hunk
Dec 6, 2013
111
Missouri
My fireplace did not require extra venting to cool the chase, but like you I wanted additional assurance. I added an extra intake and large exhaust in my chase. In my case the chase is interior and the exhaust is in the back side of the chase. I believe this helps disperse the heat to this area of the house. I have measured 105 degrees at the chase exhaust with my ir gun. I don't see any harm in adding additional venting if it will make you sleep better at night.
 
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Newtofire

New Member
Dec 12, 2017
2
Vancouver
My fireplace did not require extra venting to cool the chase, but like you I wanted additional assurance. I added an extra intake and large exhaust in my chase. In my case the chase is interior and the exhaust is in the back side of the chase. I believe this helps disperse the heat to this area of the house. I have measured 105 degrees at the chase exhaust with my ir gun. I don't see any harm in adding additional venting if it will make you sleep better at night.
Thanks for the reply!! Appreciate all the help I can get. What type of vent did you use. Do you have any pictures?? Thanks again
 

bfast250

Burning Hunk
Dec 6, 2013
111
Missouri
Thanks for the reply!! Appreciate all the help I can get. What type of vent did you use. Do you have any pictures?? Thanks again
The vent is just a hole in the wall of the chase with a return vent cover over it. I put two 6x6 intakes (one on each side down low) and a single 6x32 up high for the exhaust.