Why does Carrier use polypropylene heat exchanger instead of the industrial standard - stainless steel? What are the advantages and disadvantage of both?
I would not buy one Carrier Put the Bottom line before Consumer safety on this Design In April 2008, the Court granted final approval to a nationwide settlement in a class action lawsuit filed by current and past owners of high-efficiency furnaces manufactured and sold by Carrier Corporation and equipped with polypropylene-laminated condensing heat exchangers (CHXs). Carrier sold the furnaces under the Carrier, Bryant, Day Night and Payne brand-names. Plaintiffs alleged that starting in 1989 Carrier began manufacturing and selling high efficiency condensing furnaces manufactured with a secondary CHX made of inferior materials. Plaintiffs alleged that as a result, the CHXs, which Carrier warranted and consumers expected to last for 20 years, failed prematurely. The settlement provides an enhanced 20-year warranty of free service and free parts for consumers whose furnaces have not yet failed. The settlement also offers a cash reimbursement for consumers who already paid to repair or replace the CHX in their high-efficiency Carrier furnaces. An estimated three million or more consumers in the U.S. and Canada purchased the furnaces covered under the settlement. Plaintiffs valued the settlement to consumers at over $300 million based upon the combined value of the cash reimbursement and the estimated cost of an enhanced warranty of this nature.
No brainer. Stainless steel. All modern boilers are 'A' rated whatever heat exchanger is fitted. Stainless is much more durable than copper or aluminium alloy so will outlast the other materials.
