F.A.Q.

What is the latest version?

The latest version is the only version for sale on this website. If you are purchasing here, you’re guaranteed the most up-to-date edition. This website is the only official provider of ExOverZero products. Purchases made from other websites are not covered by guarantee or return policies.

What is your return policy?

We accept returns of unopened, unused products within 30 days of purchase. Please contact admin@exoverzero.com and reference order number for return instructions. A full refund minus the cost of shipping will be given upon receipt of the returned items. Include your name, order number and address in your return package.
Please note that we will not provide refunds for books that are opened, damaged, used, or books kept past 30 days. Contact customer support if you have questions prior to sending your return.

Do you have other products available?

All currently available products are for sale on this site.

Do you accept International orders?

No, we do not ship our merchandise internationally and automatically refund any international order placed. We do not ship to intermediary international shippers.

What are my shipping options?

All orders are sent via Fedex. Shipping times vary.

Is there Errata for the current books?

Yes, up-to-date Errata is available with all known errors. Click the product below to view and download. If you believe you’ve found an error that is not mentioned in the Errata, we welcome you to contact us! Use our Contact Us form, or email admin@exoverzero.com

HVAC&R Complete Practice Exams Errata (updated 10/06/2022)

About ExOverZero:

ExOverZero is a U.S. business located in Washington State. We offer P.E. preparation tools to HVAC&R Engineers. Our staff consists of Founders and Authors Joshua Bero, CEO, and P.J. Royal, COO/CFO. All books have been reviewed by a panel of independent P.E. license holders.