Menards® offers a variety of heating and appliance venting options. It is an ideal solution for residential garages and workshops, along with light commercial or industrial applications. 241” dated January 27, 2011, there is no residential horizontal venting Category I and all horizontal residential venting is to be considered Category III. The angle is not adjustable. To solve this problem I made a 4” diameter ring from band iron that slipped inside the pipe joint. Looks great and went together easily. For horizontal venting only with a downward pitch. Made of … You’ll need to same tools as the ones required for a roof vent. Sterling 4" Garage / Shop Vent Kit IncludesFor structures with an exterior wall at least 4" thick. It should be noted that for residential appliances, all horizontally vented appliances are considered Category III regardless of the space pressure or booster fan. It is the most common vent pipe. H-Mac Systems carries stainless steel category III and galvanized double wall type B vent kits for gas fired unit heaters. (3in X 4in adapter for use with 45K and 50K models only.) x 4 ft. Z-Vent Pipe comes with new fusion welded piper seams for a smoother finish and better fit. While two units may be installed in the same space, using the exact same vent pipe diameter and length, they may still be different venting categories. When in doubt, check the unit manufactures Installation Manual to see which venting category applies to the unit. It is an UL listed product Since the flue gas is forced into the pipe, for almost all applications the flue pipe will be under positive pressure and require Category III vent pipe. All vent systems are for horizontal venting of all Sterling GG gas heaters. It is an UL listed product Double wall vent pipe, while more expensive, has a lower surface temperature which will reduce the clearance to combustible requirements. Buy it and Save at GlobalIndustrial.com All parts for horizontal venting Can be used with MHU45 and MHU75 Meets new Cat 2012 s/s Instructions included New (5) from $353.47 + FREE Shipping. That code may also be used to size venting systems for drafthood equipped central furnaces or for fan-assisted combustion system central furnaces. Category I horizontal venting is only possible in commercial applications. Heatfab is the leading manufacturer of high quality venting systems for Special Gas Vent applications, specified by OEMs for over 20 years. Sku # 6374124. Time-tested installations throughout North America and globally. If a manufacturer’s installation manual identifies that the standard combustion, vertically vented system can be Category I or III it will most like be Category I unless the space is under negative pressure. Category III refers to positive vent pressure which is created by exhaust blowers in unit heaters. I asked the salesperson if this was some special venting required only by Sterling. In fact, after parts identification, installation is the second most common type of question our technical support groups receives. Per CSA bulletin “Gas Products No. The stainless steel heater vent pipe and fittings feature patented built-in mechanical locking band and triple-lipped directional gaskets. These vent systems must be constructed of AL29-4C® stainless steel, contain gaskets for sealing, and have a built in mechanical locking band among other requirements. UL1738 approved for category II, III and IV appliances. Z-Vent By Z-Flex 3 Inch Round X 3 Ft. Long Horizontal Vent Kit Features: - Includes: 2SVSAHD03 Modine HD adapter, 2SVEPWCF0303 3 Ft. long pipe, 2SVSWTEF03 wide depth (5-10 inch) wall thimble, 2SVSRTF03 termination box. The Z-Flex 3 in. Requires at least 4” overlap for a secure connection. In other words, any water that gets into the vent pipe opening must be able to run freely all the way to the sewer, without creating a "trap". Note: most double wall vent pipe is also certified to Category II, III and IV per UL 1738. $353.47 $ 353. WOW! - 45 and 90 degree elbows are optional, see "Choose Options" above. Help@ACFgreenhouses.com If you are ordering a model HDS75, HD100, or HD125 Hot Dawg Heater you will need to use 4" vent pipe. These vent systems must be constructed of AL29-4C® stainless steel, contain gaskets for sealing, and have a built in mechanical locking band among other requirements. Category II and IV are for condensing gas heating appliance with a flue loss of less than 17%. Z-Vent is manufactured using AL29-4C advanced ferritic stainless steel with unmatched corrosion resistance for use with condensing furnaces and boilers. The price was more than fair and fit my need perfectly. 4) The common venting Tables 3, 4, 7, & 8 were generated using a maximum horizontal vent connector length of 1 1/2 feet (18 inches) for each inch of connector diameter as follows: The vent connector should be routed to the vent utilizing the shortest possible route. Buffalo Junction, VA 24529 B-vent must meet the thickness requirements of UL 441, section 6. 4.0 out of 5 stars 67. Just what I needed. The vent pipe material must meet a minimum metal thickness (section 6) and corrosion resistance (section 39). In order to address that, we need to look at the four different venting categories. Heatfab is the leading manufacturer of high quality venting systems for Special Gas Vent applications, specified by OEMs for over 20 years. The only exception would be in a commercial application if the space is under an high positive pressure or the venting system has a booster fan at the end of the flue pipe drawing the exhaust through it. Z-Vent was developed in the early 1980s and has thousands of field installations to date. For vertical applications: Since hot flue gas naturally rises, it is possible for the flue pipe to be under negative pressure even if the gas-fired appliance has a power venter forcing the flue gas into the vent pipe. Per chapter 12 of NFPA 54, the system is defined as vertical if the horizontal distance is less than 75% of the vertical distance. All pipes and components are engineered with smooth clean welds located 90° from mechanical locking bands. Wish it came with horizontal venting instructions instead of vertical venting instructions. All vent systems are for horizontal venting of all Sterling GG gas... ACF Greenhouses When tightening the clamp it wouldn’t secure the end cap. In short, it is a US standard for gas venting systems required in category III applications. All pipe and fittings are UL1738 approved for category II, III and IV... Sterling GG Category 3 Horizontal Vent Kits. In this paper, we will focus on Category I and III venting systems. In these appliances, the flue gas condenses from a gas to a corrosive liquid. HeatStar 4" Horizontal Stainless Steel Vent Kit F102860 Category III Venting. While they may still be installed vertically, due to the additional length of the combustion air pipe, the hot flue gas rising is not able to overcome the friction of the additional vent pipe. There was to much 4 inch piping shipped to do the job. This is made of AL-294C stainless steel for added durability. Add all three to Cart Add all three to List. These stainless steel, gas tight 4" vent systems are approved by Sterling for horizontal installation in residential and commercial applications for GG model heaters. Our Saf-T Vent® line of products are perfect for your commercial and industrial needs. Single wall typically will have a lower cost than double wall vent pipe. Our Saf-T Vent® line of products are perfect for your commercial and industrial needs. In short, it is a US standard for gas venting systems required in category III applications. Consult with a qualified installer to select the proper kit for your application. Mr. Heater 3 Inch Vertical Vent Kit for Big Maxx MHU50LP and MHU50NG Unit Heaters. Novavent Z Flex is the perfect Venting choice for the Gas Tankless Water Heaters and Gas Boilers that require 4" CAT III / Catergory 3 Stainless Steel Venting. They are: 1. flue-gas temperature 2. heat loss in the vent 3. vent height 4. vent system capacity 5. restrictions to flow and 6. the ambient temperature. Vent pipe and fittings feature patented built-in mechanical locking band and triple-lipped directional gaskets. 1-888-888-9050, Shipping InformationOrdering & ReturnsPrivacy PolicyAbout UsContact Us, Sterling 4" Garage / Shop Vent Kit Includes, Sterling 4" 45 Degree Garage / Shop Vent Kit Includes. Sterling 4" 45 Degree Garage / Shop Vent Kit IncludesFor heaters installed at a 45 degree angle to the wall in structures with an exterior wall at least 4" thick. Vent pipe and fittings feature patented built-in mechanical locking band and triple-lipped directional gaskets. In order to meet the second requirement, the vent pipe must be single or double wall vent pipe. ANSI Category I, II, II, and IV appliances: Boilers, Water Heaters and Furnaces. All pipes and components are engineered with smooth clean welds located 90° from mechanical locking bands. Sterling 4" Greenhouse Vent Kit IncludesFor greenhouses and structures with walls less than 1 1/4" thick. Ships same day. These are the most durable, longest lasting, and lowest maintenance vent systems available for these gas heaters. Adjustable length. These 3' stainless steel, gas tight 3" vent systems are approved by Modine for horizontal installation in residential and commercial applications for all HD heaters. B-vent is not allowed since the joints do not form a gas-tight seal. Heatfab is the leading manufacturer of high quality venting systems for Special Gas Vent applications, specified by OEMs for over 20 years. The drip tee is used to drain condensation if you do not have a 1/4" for foot downward slope in your horizontal vent line. While there are many requirements for the venting system in UL 1738 (3rd Edition October 4th, 2010), the main requirements that the vent pipe must meet are: In order to meet the first requirement, the vent pipe can be made from a variety of materials including aluminum alloy, porcelain coated steel, stainless steel and several others. This elbow set allows mounting of the Sterling GG heater at a 45 degree angle when venting horizontally with the concentric vent kit. 3" venting is for Modine models HD30, HD45, HD60, & HD754" venting is for Modine models HD100 & HD125Each vent system comes complete with everything needed to vent a Modine Hot Dawg heater.These 3' stainless steel, gas tight vent systems are approved by Modine for horizontal installation in residential and commercial applications for HD model heaters. All pipe and fittings are UL1738 approved for category II, III and IV venting applications. These vent systems must be constructed of AL29-4C® stainless steel, contain gaskets for sealing, and have a built in mechanical locking band among other requirements. In a Category III venting system, if there is a leak in the venting system, flue gas will flow from the flue pipe into the space. 5" Single Wall Stainless. It includes a stainless steel category III 45 degree elbow for the exhaust and an adjustable galvanized elbow for the combustion (inlet) … Our Saf-T Vent® line of products are perfect for your commercial and industrial needs. Whether a vent system is Category I or III is determined by the flue gas pressure in the flue pipe relative to the pressure in the space. (1) 4" heater adapter, (1) 4" vent terminal, (1) 4" x 24" vent pipe, (2) 4" x 12" vent pipes, and (1) 4" adjustable wall thimble + 18" pipe ADD TO CART. These appliances have their own special venting requirements that we will deal with in a separate paper. Special Gas Vent Models - CG/CGV & FCS Single and Double-Wall Positive Pressure Special Gas Vent engineered for venting today’s high efficiency natural gas-burning or propane fired appliances, categories II, III and IV as defined by the Standard for Gas-Fired Central Furnaces, ANSI Z21.47 and NFPA 54. 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