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Corzan® CPVC for Hydronic HVAC

Corzan® CPVC pipe and fittings are specifically engineered to meet the temperature and pressure requirements of hydronic HVAC applications and to handle chilled and boiler water treated with corrosion inhibitors, biocides and other treatment chemicals.

HVAC Design Guide

This free guide includes information on heat transfer fluids, corrosion inhibitors and more information to consider when choosing Corzan CPVC for your next HVAC project.



Specifying the right materials for a project is the first step to ensuring success. Get information on specifying Corzan CPVC for hydronic HVAC projects and other helpful design resources.


Proper installation is critical to system performance. Corzan CPVC is lighter and easier to install than metallic alternatives, requiring less time and labor.

Information for Systems Using POE Oil Lubricant

POE Oil, or Poly Ester Oil, is a synthetic oil that can be used to lubricate refrigeration compressors. 


When using Corzan CPVC piping in Hydronic Heating and Cooling applications, it is important to note that Polyol Ester (POE) lubricants are incompatible with CPVC and will likely cause cracking of the fittings and/or pipe if they are released into the recirculating fluid or condensate drain.(See HVAC Design Guidance for steps to take should such a release occur.)While refrigerant and/or compressor lubricant should not normally enter the recirculating fluid in a properly operating system, they may be released into the recirculating fluid and/or condensate drain in the event of a rupture of the heat exchanger.


If a specified chiller within an HVAC system will be using POE oil, it is imperative that the system designer verifies with the Chiller Manufacturer that compressor oil will not enter the recirculating fluid or condensate drain. Lubrizol is not aware of any failures of HVAC piping systems that have been caused by other types of compressor lubricants including mineral oils, polyvinyl ethers (PVE), polyalkylene glycols (PAG) or polyalpha-olefins (PAO). 

Where Corzan CPVC Is Used

Corzan CPVC can be used in HVAC projects including chillers, air handlers, boilers, air separators, pumps and heat exchangers and condensate drains in plenums in applications including:

HVAC Design Guide

This free guide includes information on heat transfer fluids, corrosion inhibitors and more when considering Corzan CPVC for HVAC projects.

Phoenix Apartment Complex Customer Story

How did Arizona Integrity Plumbing use Corzan CPVC to repipe a hydronic HVAC project in record time?

Contact a Corzan CPVC Specialist

Switching to Corzan CPVC for HVAC projects is easy with the help of a Corzan CPVC specialist. Get insights into flammability and plenum ratings, lower installed costs, resistance to the growth of Legionella in cooling towers, ability to withstand aggressive ASHRAE 188-compliant decontamination procedures and more.


Submit the form and an expert will be in touch within one business day.