Last updated: September 1, 2026
Manufacturer’s warranty
The products we sell are new and covered by the manufacturer’s limited warranty where applicable. Warranty length and coverage (for example heat exchanger, parts and labor) depend on the product, the model and how it is used (residential or commercial), and are set by the manufacturer. The warranty terms included with your product and published by the manufacturer apply.
Keeping your warranty valid
- Have the product installed by a licensed professional following the manufacturer’s installation manual and local codes.
- Register your product with the manufacturer if required.
- Use the correct fuel type and follow the recommended maintenance (for example descaling or flushing for tankless water heaters in hard-water areas).
- Keep your order confirmation email as your proof of purchase.
Making a warranty claim
Warranty service is provided by the manufacturer and its authorized service network. We are happy to help: contact us with your order number, model and serial number, and a description of the problem, and we will guide you through the claim.
Defective on arrival
If a product is defective when it arrives or fails during the first 30 days without having been installed incorrectly, contact us. We will replace it or refund you in full and cover all shipping costs, as described in our Refund and Returns Policy.
What warranties do not cover
Manufacturer warranties generally do not cover damage from improper installation, incorrect fuel or voltage, freezing, scale or water-quality problems, accidents, misuse or unauthorized modifications. Please read the manufacturer’s warranty document for full details.
Contact
Email: contact@markevosale.com · Phone: +1 916-488-9100