General FAQs
Is InnoFlue® approved for use in the United States?
InnoFlue is approved for use in the United States. InnoFlue is the only polymeric (plastic) vent system listed to UL-1738. UL-1738 is the standard for venting category II, III & IV appliances.
The Uniform Mechanical Code (UMC) and International Code Council (ICC) requires that all vent systems be listed. For plastic venting, the UMC approved safety standard is UL-1738.
All codes require that vent systems be tested and approved by the appliance manufacturer on an appliance by appliance basis. Contact Centrotherm Eco Systems, visit our appliance manufacturer approval page, review the venting section of the appliance installation mannual or contact your appliance manufacturer directly to determine if InnoFlue is approved for use.
Is InnoFlue® approved for use in Canada?
Canadian code requires all combustion gas vent systems to be listed to ULC-S636. The entire InnoFlue® product offering is listed to ULC-S636 Class C, making it approved for use as a combustion gas vent system for sustained flue temperatures up to 230°F (110°C). Check with individual appliance manufacturers' installation instructions to ensure that InnoFlue's® polypropylene technology is approved.
How long has InnoFlue® been in service?
InnoFlue® has been in service for over 17 years. Centrotherm has manufactured and distributed InnoFlue® for the European market since 1994. Polypropylene has been utilized as a vent system technology since before 1990.
Why use InnoFlue® polypropylene technology over polymeric vent system technology?
Unlike other polymeric systems, InnoFlue® is designed specifically as a vent system. This means that vent specific components like condensate drains, test ports and non-return valves are available. In addition, Centrotherm provides technical support including system sizing, development of custom parts and OEM support. InnoFlue's® polypropylene technology provides several technical advantages over existing polymeric vent materials including increased temperature ratings, enhanced corrosion resistance, environmental benefits, innovative design and a 10-year limited warranty. For more information on the advantages of InnoFlue®, please go to our Why InnoFlue® page.
Where can you buy InnoFlue®?
InnoFlue® is available for sale at major plumbing and HVAC wholesalers. For list of wholesalers near you, contact Centrotherm or your local Centrotherm Manufacturer's Representative.
What heating appliances have approved the use of InnoFlue®?
InnoFlue® is approved for use by most major hydronic heating equipment manufacturers (boilers, tankless and tanked water heating) as well as several hot air heating equipment manufacturers. For an updated list of approved heating appliances, contact Centrotherm or your local Centrotherm Manufacturer's Representative.
Does the fuel type of the heating appliance impact the applicability of InnoFlue®?
Unlike other polymeric or metal vent systems, InnoFlue® is resistant to aromatic hydrocarbons, sulfuric acid and hydrochloric acid, making it suitable for use for oil, propane or natural gas fired heating appliances. InnoFlue® is limited only by flue gas temperature, making it ideal for use with condensing heating appliances. InnoFlue® is ULC-S636 listed for sustained flue gas temperatures up to 230°F (110°C).
What type of warranty does InnoFlue® come with?
InnoFlue® comes with an industry leading 10-year limited warranty. The InnoFlue® limited warranty provides for replacement of defective product installed in residential applications. Please read our full warranty for detailed benefits and limitations.