Public Input No. 16-NFPA 211-2014 [ Section No. 2.3.1 ] 2.3.1 ASHRAE Publications. ASHRAE, Inc., 1791 Tullie Circle, NE, Atlanta, GA 30329-2305. ASHRAE Handbook: HVAC Systems and Equipment, 2008 2012. Additional Proposed Changes File Name 211_Ferguson_PI16_PI17.pdf Description Approved input form There are outdated references to the ASHRAE HVAC Systems and Equipment Handbook. This proposes to update those references. Submitter Full Name: STEVEN FERGUSON Organization: ASHRAE Submittal Date: Tue Jan 07 13:10:30 EST 2014 Resolution: FR-1-NFPA 211-2014 Statement: The edition date for the ASHRAE HVAC Systems and Equipment Handbook is updated.
Public Input No. 9-NFPA 211-2013 [ Section No. 3.3.68 ] 3.3.68 Fireplace Fireplace / Chimney Accessories. Accessories intended for field installation into or attachment to existing masonry fireplaces and chimneys. These include such items as heat exchangers, glass and or screen door assemblies, tubular grates / andirons, and blowers. blowers, log lighters intended for the ignition of solid fuel, fire backs intended to reflect heat or reduce heat exposer, dampers, gas log decorative appliances, spark arrestor chimney caps and ash trap covers. 3.3.68.1 Factory-Built Fireplace System Accessories. Shall include only listed and tested components assembled in accordance with the terms of the listing. These include such items as decorative shrouds, glass doors, terminations, wood grates, refractory panels, dampers and chimney components. I believe this better reflects the field reality of known accessory s to the masonry fireplace and chimney systems. By expanding the language to reflect these additional components, I believe will help the field technicians to better communicate with the home owner. Submitter Full Name: Randy Brooks Organization: Brooks Chimney Sweeping Affilliation: National Chimney Sweep Guild Submittal Date: Thu Nov 07 16:47:51 EST 2013 Resolution: FR-5-NFPA 211-2014 Statement: The definition was revised to clearly delineate masonry fireplace and chimney accessories from those associated with factory-built fireplace systems. The second sentence is relocated to a new annex A item to comply with the the NFPA Manual of Style.
Public Input No. 2-NFPA 211-2013 [ Section No. 4.6.2 ] 4.6.2 Rain Cap Height. The minimum distance from the underside of an unlisted rain cap to the top of covered flues shall be 0.7 times the lesser long dimension of the width or depth of the longest covered flue. Where more than one flue is covered, the lesser dimension of the highest flue shall be used. Additional Proposed Changes File Name 211_PI_Held_Comment_211-1_TC_CHI-AAA_.pdf Description Approved Cover Sheet NOTE: This proposal appeared as Comment 211-2 (Log #CC1) which was held from the F12 ROC on Proposal 211-5. Purpose is to further refine guidance for lid height of unlisted rain caps. We often see metal or masonry lids so close above the flue termination as to inhibit the exit of the flue gases. Source: Handbook of Oil Burning (1951) page 458, figure 4. They used 0.6 as a factor but 0.7 works better when you include flues venting solid fuel appliances. Example A, one 8x8 covered flue. 8 times 0.7=5.6 rounded to 6 inches minimum cap height. Example B, If several flues were covered: 8x8, 8x12, 12x12. 12 inches would be the long dimension of the longest covered flue. 12 x 0.7 =8.4 inches rounded to 8 inches. Example C. If the flues in Example B included an 8x16 flue, the longest flue would be 16 inches. 16 x 0.7 = 11.2 rounded to 11 inches. These minimums fall within what is typically available from metal cap manufacturers as well as anyone creating a masonry rain cap on a masonry chimney. Submitter Full Name: TC on CHI-AAA Organization: TC on Chimneys, Fireplaces, and Venting Systems for Heat-Producing Appliances Submittal Date: Mon Jun 10 10:59:38 EDT 2013 Resolution: CI-2-NFPA 211-2014
Statement: The committee revised the rain cap height to solicit public comment and to allow for the completion of a research project under the auspices of the Fire Protection Research Foundation. The values provided are based on common industry practice applicable to metal rain caps on masonry chimneys.
Public Input No. 12-NFPA 211-2013 [ New Section after 6.1.1 ] TITLE OF NEW CONTENT Type your content here... 6.1.1.1 Only listed components and accessories tested for use with the specific model of factory built chimney shall be permitted. This will help close the gap of knowledge for the field technician when servicing these chimneys. The industry is largely confused concerning the inclusion of non-listed parts and components being acceptable as replacement parts on these systems. Submitter Full Name: Randy Brooks Organization: Brooks Chimney Sweeping Submittal Date: Thu Nov 07 18:16:01 EST 2013 Resolution: FR-3-NFPA 211-2014 Statement: A new paragraph is added to clarify requirements for repair of factory-built chimneys using listed or approved components specific to the system. The manufacturer of a listed system specifies that only listed components can be used in repairs. Approved components are permitted to provide an option to local AHJs where listed components are not available due to manufacturers going out of business or changing product lines.
Public Input No. 13-NFPA 211-2013 [ Section No. 6.1.4.1 ] 6.1.4.1 * The enclosure shall not be constructed from any type of duct wrap or fire-rated duct wrap. I was responsible for this intial addition. Somewhere along the way wording was changed from the original proposal. The intent is to eliminate any type of fire wrap duct insulation (i.e., Pyroscat, 3M, etc.) from being used in this application. Submitter Full Name: DAVID HANTEN Organization: Leo Kob Co., Inc. Submittal Date: Thu Dec 05 14:24:43 EST 2013 Resolution: FR-4-NFPA 211-2014 Statement: The intent is to eliminate any type of fire wrap duct insulation (i.e., Pyroscat, 3M, etc.) from being used in this application.
Public Input No. 6-NFPA 211-2013 [ New Section after 6.3 ] 6.4 Installation Factory-built chimneys and chimney units installed through insulation or areas to be insulated shall be separated by a physical barrier to establish and maintain the minimum air space clearance required by the chimney manufacturer. Every year there a several fires that are the result of insulation being installed directly against factory built chimneys because a physical barrier was not present to maintain the required minimum air space for the chimney to operate safely. Each of these fires could have been avoided if a barrier had been in place. Chapter 10 Vents, 10.6.2 has similar language to what is being proposed requiring that a physical barrier be in place to maintain the minimum air space required when insulation is present. By adding similar language to Chapter 6 Factory-Built Chimneys and Chimney Units there would be commonality on the proper installation requirements for vents and chimney with respect to areas that are being insulated. Submitter Full Name: GREGG ACHMAN Organization: HEARTH & HOME TECHNOLOGIES Submittal Date: Tue Sep 24 10:02:43 EDT 2013 Resolution: FR-7-NFPA 211-2014 Statement: Every year there a several fires that are the result of insulation being installed directly against factory built chimneys because a physical barrier was not present to maintain the required minimum air space for the chimney to operate safely. This type of fire might be avoided if a barrier is in place. Subsection 10.6.2 of NFPA 211 has similar language to what is being proposed requiring that a physical barrier be in place to maintain the minimum air space required when insulation is present. By adding similar language to Chapter 6 Factory-Built Chimneys and Chimney Units there would be commonality on the proper installation requirements for vents and chimney with respect to areas that are being insulated.
Public Input No. 14-NFPA 211-2014 [ Section No. 7.1.7 ] 7.1.7 Smoke Test. Masonry chimneys shall be proved tight by a smoke test after construction and before being put into use. Test results shall be submitted to the AHJ. This will provide the AHJ with the knowledge the chimney has passed the test. Submitter Full Name: Jim Muir Organization: Building Safety Division, Clark County Washington Affilliation: NFPA's Building Code Development Committee (BCDC) Submittal Date: Wed Jan 01 21:36:04 EST 2014 Resolution: The local authority having jurisdiction should determine if they wish to receive documentation of the smoke test. The AHJ already has the authority to add this to the local regulations.
Public Input No. 4-NFPA 211-2013 [ New Section after 8.4.2 ] TITLE OF NEW CONTENT Type your content here...feild test proceedure for Chaper 8 should be included in this document. Generator Flue venting test procedure is very vague. There should be more detail in this section as it is a common system in most commercial and institutional projects. Submitter Full Name: ANDY DE MARCO Organization: [ Not Specified ] Submittal Date: Fri Aug 02 11:07:50 EDT 2013 Resolution: The public input was resolved because no specific action was requested by the submitter. The committee did not have enough information to understand the submittal.
0 Public Input No. 15-NFPA 211-2014 [ New Section after 10.7.3.3 ] 10.7.3.4 Maximum Run Clothes dryer exhaust ducts shall have a maximum length not exceeding 35 feet as measured from the dryer terminal to the outlet. Reductions of 2-1/2 feet shall be made in the maximum length of the duct for each 45-degree bend and 5 feet in the maximum length of the duct for each 90-degree bend. The transition duct shall not be included in the maximum length of the duct. 10.7.3.4.1 Where the manufacturer s installation instructions for the dryer is different than the maximum length specified in 10.7.3.4, the exhaust duct shall be in accordance with the dryer manufacturer s installation instructions. NFPA reports that in 2010, an estimated 16,800 reported U.S. non-confined or confined home structure fires involving clothes dryers or washing machines resulted in 51 civilian deaths, 380 civilian injuries and $236 million in direct property damage. Clothes dryers accounted for 92% of the fires. While the leading cause of home clothes dryer and washer fires was failure to clean (32%), unclassified mechanical failure or malfunction accounted for 22%. This proposal will ensure that the run for the exhaust is not excessive and reduce the risk of fire caused by lint buildup in exhaust ducts. This also allows following the manufacturer installation instructions for proper exhaust duct lengths. The numbers presented are similar to those in other mechanical codes. Submitter Full Name: Jim Muir Organization: Building Safety Division, Clark County Washington Affilliation: NFPA's Building Code Development Committee (BCDC) Submittal Date: Wed Jan 01 21:40:51 EST 2014 Resolution: In "Announcement Bulletin, Oct 13, 2006" subject UL 2158, indicating that there was no one cause leading to clothes dryer fires based on an AHAM study. [The Announcement Bulletin is available from the UL standards development website.] In addition, the committee could not identify any national codes or standards that include a limitation of 35 ft or similar length limitation. Neither ANSI Z21.5.1 nor UL 2158
1 contain any length limitation for gas or electric clothes dryers, respectively.
2 Public Input No. 8-NFPA 211-2013 [ New Section after 10.7.3.5 ] Supporting Dryer Exhaust Ducts. Dryer exhausts should be supported with non combustible metal straps, where additional support is needed. Plastic pipe strap is often an affordable alternative for dryer exhausts and is often right there in the duct area of many home improvement stores. Some techs only want to use this. My argument however is, the plastic strap is easy to penetrate with screws, therefore, going completely through the hole and not providing good support. The other problem with plastic strapping is the heat expressed through the dryer exhaust can be transferred to the plastic strap making it weak and possibly become unsecured, and possibly creating a disconnect, collapse or other shifting of the dryer exhaust. In the event of an exhaust fire, the plastic strap would not support the exhaust and could result in the fire spreading because of collapse, shifting or disconnect of the dryer exhaust. If additional material is needed for consideration of this proposed inclusion, please email or call me, I would be more then glad to provide some pictures of the plastic strapping. Submitter Full Name: Laurie Hanley Organization: Reliable Appliance & Dryer Ven Submittal Date: Fri Oct 11 11:55:54 EDT 2013 Resolution: FR-8-NFPA 211-2014 Statement: Plastic pipe strap is often an affordable alternative for dryer exhausts and is often right there in the duct area of many home improvement stores. However, plastic straps lack the strength and longevity to properly maintain support for the dryer exhaust duct. Therefore, dryer exhaust ducts must be supported by metal straps.
3 Public Input No. 11-NFPA 211-2013 [ New Section after 11.1 ] TITLE OF NEW CONTENT Type your content here... 11.1.5 Only listed components and accessories tested for use with the specific model number of factory-built fireplace systems shall be permitted. This will help close the gap of knowledge for the field technician when servicing these appliances. The industry is largely confused concerning the inclusion of non-listed parts and components being acceptable as replacement parts on these systems. Submitter Full Name: Randy Brooks Organization: Brooks Chimney Sweeping Submittal Date: Thu Nov 07 17:52:33 EST 2013 Resolution: FR-11-NFPA 211-2014 Statement: The requirements for accessories was separated to recognize the difference between factory-built fireplace systems and masonry fireplaces. The requirements for masonry fireplaces were not revised; but simply relocated. The requirements for factory-built fireplace accessories were revised to clarify use with a listed factory-built fireplace. A new paragraph was added to chapter 14 to provide minimum requirements for replacing components within factory-built fireplace systems. These components should meet the terms of the original manufacturer s listing or be approved by the AHJ where the original manufacturer is not in business or has discontinued production of replacement parts.
Public Input No. 10-NFPA 211-2013 [ Section No. A.11.4 ] A.11.4 Factory-built accessories for fireplaces include devices that could alter the combustion or heating characteristics of the fireplace. These products should meet the requirements of ANSI/UL 907, Fireplace Accessories; ANSI Z21.11.2, Gas-Fired Room Heaters Volume II, Unvented Room Heaters; Z21.60/CSA 2.26, Decorative Gas Appliances for Installation in Solid-Fuel Burning Fireplaces; or ANSI Z21.84, Manually Lighted, Natural Gas, Decorative Gas Appliances for Installation in Solid-Fuel Burning Appliances. In developing the 2013 edition, the committee received reports that some building and energy codes indicate that gasketed or tight-fitting doors should be used on masonry fireplaces to minimize heat loss through the fireplace opening when not in operation. Many existing masonry fireplaces were not designed to be operated with such doors in the closed position. Operation with closed gasketed or tight-fitting doors has the risk of causing an increase in temperature of the masonry material. If operation continues for an extended period, the masonry material could be capable of transferring enough heat to ignite nearby combustibles, even if the minimum separation distance specified in 11.2.5 is provided. In addition, operation of a masonry fireplace with gasketed or tight-fitting doors in the closed position can result in incomplete combustion. Would like to see the first paragraph of this text moved to chapter 11.4 "Accessories. Submitter Full Name: Randy Brooks Organization: Brooks Chimney Sweeping Affilliation: National Chimney Sweep Guild Submittal Date: Thu Nov 07 17:32:01 EST 2013 Resolution: The annex material will remain in the annex but relocated to A.11.2.10 along with other changes to mandatory text. The annex material applies only to masonry fireplaces. The committee did not change the requirements for masonry fireplace accessories because they are already required to be listed or approved. 4
Public Input No. 17-NFPA 211-2014 [ Section No. B.1.2.2 ] B.1.2.2 ASHRAE Publications. ASHRAE, Inc., 1791 Tullie Circle, NE, Atlanta, GA 30329-2305. ASHRAE Handbook : HVAC - HVAC Systems and Equipment, 2008 2012. Additional Proposed Changes File Name 211_Ferguson_PI16_PI17.pdf Description Approved input form There are outdated references to the ASHRAE HVAC Systems and Equipment Handbook. This proposes to update those references. Submitter Full Name: STEVEN FERGUSON Organization: ASHRAE Submittal Date: Tue Jan 07 13:11:20 EST 2014 Resolution: FR-9-NFPA 211-2014 Statement: The edition date of the ASHRAE HVAC handbook is updated to the current edition. 5