This section was revised in the 2019 edition.  So I took a quick look at the 
submitter’s reasoning for the change.  It appears to me the intent is that the 
sprinkler is not required in your situation.

Ed Kramer
Bamford Fire


From: Bob Knight <[email protected]>
Sent: Wednesday, March 11, 2026 4:53 PM
To: [email protected]
Subject: [Sprinklerforum] Re: 13R Fuel Fired Furnace in Attic Space

I appreciate the help.

Thank you,
Bob Knight, CET III
Fire by Knight, LLC
208-318-3057
[FIREBYKNIGHT]

On 3/11/2026 3:41 PM, Craig Hanson wrote:
Yes, forgive me. I was thinking of CA requirements. Yes. it is required in the 
crawl space not in the attic.




Craig D. Hanson, CFPS
Fire Division Manager
West Coast Code Consultants, Inc. (WC³)
Meridian Satellite Office
C: 253.225.9977 | E: [email protected]<mailto:[email protected]> | 
www.WC-3.com<https://www.wc-3.com/>
Teaming With Your Community to Make a Difference


On Wed, Mar 11, 2026 at 3:35 PM Bob Knight 
<[email protected]<mailto:[email protected]>> wrote:
Craig,
6.6.6.2  states that, Spaces that contain fuel-fired equipment shall also 
comply with 6.6.6.3 or 6.6.6.4.
Section 6.6.6.3 states, Where the fuel-fired equipment is above all occupied 
areas, sprinkler  protection shall not be required in the concealed space.

The fact that the furnace is above all occupied areas would then allow for the 
sprinkler to be omitted, wouldn't it?

Thank you,
Bob Knight, CET III
Fire by Knight, LLC
208-318-3057
[FIREBYKNIGHT]

On 3/11/2026 2:52 PM, Craig Hanson wrote:
Correct, I single head above the equipment is required.




Craig D. Hanson, CFPS
Fire Division Manager
West Coast Code Consultants, Inc. (WC³)
Meridian Satellite Office
C: 253.225.9977 | E: [email protected]<mailto:[email protected]> | 
www.WC-3.com<https://www.wc-3.com/>
Teaming With Your Community to Make a Difference


On Wed, Mar 11, 2026 at 2:43 PM Bob Knight 
<[email protected]<mailto:[email protected]>> wrote:
I'm a bit confused on whether sprinklers are required or not in an attic with 
fuel fired equipment.

Looking at NFPA 13R, 2019 ed. it states:
6.6.6   Sprinklers  shall  not  be  required  in  attics,  penthouse equipment  
rooms,  elevator  machine  rooms,  concealed  spaces dedicated  exclusively  to 
 and  containing  only  dwelling  unit
ventilation equipment, crawl spaces, floor/ceiling spaces, elevator  shafts.... 
 and other concealed spaces that are not intended for living purposes or 
storage and do not contain fuel-fired equipment.

This would tell me that sprinklers are required due to the presence of fuel 
fired equipment, in this case a furnace.

However, section 6.6.6.1 says, When fuel-fired equipment is present, at least 
one quick-response  intermediate temperature sprinkler shall be installed above 
the equipment.

Then section 6.6.6.3 states, Where the fuel-fired equipment is above all 
occupied areas, sprinkler  protection shall not be required in the concealed 
space.

So, it seems to me that sprinklers will not be required since the furnace is in 
that attic and above all occupied areas.

Does this sound correct?
--
Thank you,
Bob Knight, CET III
Fire by Knight, LLC
208-318-3057
[FIREBYKNIGHT]

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