Metal-Fab 6" to 7" Diameter Corr/Guard Aluminum Tapered Increaser
Metal-Fab 6" to 7" Diameter Corr/Guard Aluminum Tapered Increaser
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Metal-Fab provides complete and comprehensive venting solutions to the HVAC, Hearth and Plumbing markets. Founded in 1958 on the premise that offering better products and services would be the key to our success.
Metal-Fab continues to operate today as a privately held entity with the same core values that lead to success while creating steady, stable growth over the past six decades.
Customer needs are the highest priority at Metal-Fab that is why every customer receives a unique experience while choosing from a full line of high-quality venting products for commercial, residential and industrial applications.
Cutting-edge manufacturing systems, innovative designs, patent products, unmatched product quality, and a focus for detail have resulted in a leadership position within the industries Metal-Fab serves. Our constant product improvement process and experience in developing and engineer products for safe, efficient appliance operation sets Metal-Fab apart from the competition.
Corr/Guard® is tested and listed to UL 1738 for positive pressures up to 15" w.g., featuring a durable AL29-4C super ferritic stainless steel flue designed for extreme resistance to chloride ion pitting, crevice corrosion, stress corrosion cracking, and corrosion in moderately reducing environments. FCS Corr/Guard® incorporates an integral joint sleeve for easy joint alignment and aids in shingle condensate across the joint, preventing excessive joint corrosion and leakage. FCS products are manufactured with continuous laser-welded seams and casings, improving durability and reliability and increased efficiency.
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.
When venting gas appliances always consult the appliance installation instructions. Horizontal runs, elbows, offsets, vertical height, may be limited by appliance performance specifications.
Horizontal runs must slope a minimum of ¼": 12" (6mm-305mm). Neutral or negative pressure systems must slope upward – away from the appliance. The positive pressure within the vent may slope upward or downward. Provide condensate drainage where required.
Vertical runs are directional-specific and must be properly supported. Supports are required above every offset to prevent vertical loading on elbows.
Corr/Guard products are designed for use on today’s highly efficient condensing appliances. UNS S44735 (i.e. AL29-4C), a Superferritic Stainless Steel was the first steel to successfully exceed the requirements of UL 1738, “Standard For Venting Systems For Gas-Burning Appliances, Categories II, III, and IV." It is considered the benchmark for condensing flue materials.
For use with high-efficiency category II, III, and IV natural gas-burning or propane-fired appliances including gas boilers, furnaces, booster heaters, pool heaters, unit and radiant tube heaters, and direct vent appliances.
Click to see Appliance Vent Categories
|Flue Material Specification:||
0.015, AL29-4C Stainless Steel
|Casing Material Specifications:
0.018, Aluminized (Standard)
|Max Operating Temperature:||550º F (288 C)|
|Max Operating Pressure:||15" w.g.|
|Clearance to Combustibles ENCLOSED – VERTICAL @550ºF (288 C)||1"|
|Clearance to Combustibles UNENCLOSED HORIZONTAL or VERTICAL @ 550º F (288 C)||1"|
|Joint Connection:||Sleeved – P077 Sealant Required|
|Diameter:||6" to 7"|
- Corr/Guard Brochure
- Appliance Adapter Brochure
- Installation Instructions
- Masonry Installation Instructions
- Full Warranty Details
WARNING: Proposition 65
What our customers are saying...
Researched and ordered my fireplace from US FIreplace Store. Pricing was a fair value however, the customer service was EXCELLENT! I had an issue with the direct vent venting. I called US Fireplace and the correct items were sent out the next day AND Janessa stayed on top of my return authorization and sent me the permissions and documents I needed to return the incorrect item and no cost to me, including return shipping. Overall, I am a very satisfied customer and my fireplace looks and operates flawlessly. I am glad that I selected US FIreplace to source my direct vent fireplace. Thank you for the great service.
I had placed an order, through Lowe's Home Improvement, for an Electric Firebox: Revillusion RBF42. Ordered 1st part of January. Was told I would have it in 3 weeks. When checking to see is it came in, was told it was delayed to 3/15. Was then told is was delayed until 4/25. Waited until 4/27 to check on it. Was then told it was now delayed until August. This firebox was going in a new Sun Room addition. I could not get my final inspection until the Firebox was installed. I went on line and googled for this same product. US Fireplace Store web site was given to me. This was on a Saturday. I call and reached a very nice man. Explain what I was look for. He checked and told me they had 30 of them in stock. I almost fell out of my chair. I clarified with him the product I was wanting. I ask how soon could I get it. He told me it would ship today. Again, was amazed. It arrived on the following Monday. What a pleasure and a relief working with US Fireplace Store and their employees. Exceed my expectations.
Fort Mill, SC
Great prices, quick delivery and fast hassle free services on the issue I encountered. I had purchased an electric fireplace unit that would not fit into the existing fireplace space. With one email I was able to get the wrong fireplace refunded and picked up at my home at no extra cost and the new one I purchased and delivered free of charge. Great company.
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