Only orders purchased via Hillhub official website are eligible for returns. Please review the terms below:

1.Return Eligibility Period

Items can be returned within 30 days after delivery. Returns beyond 30 days are only accepted for quality defects.

 2.How to Request Returns

Email us at hillhub@hotmail.com to submit a return request. All returned goods must be shipped to: 6509 Kimball Ave, Chino, CA 91708, USA.

3.Order Processing & Pre-order Shipping

We ship all non-preorder orders within 72 hours on business days (Monday-Friday). Pre-order items are excluded; please refer to product page for their exact ship date.

4.Order Cancellation Rules

• Orders can be canceled for free within 24 hours before shipment.

• Cancellation requests submitted after goods are shipped cannot be approved. If you no longer want the item, submit a return request after receiving the package.

5.Refund Method & Processing Timeline

All refunds will be credited back to your original payment method. Refunds take 7 working days to reflect in your account after approval. Reach out to hillhub@hotmail.com if you have refund inquiries.

6.Return & Refund Conditions

All returns require prior approval from customer service. Products must be returned in original condition with full packaging and all accessories, plus your purchase receipt.

• Buyer-caused returns: Buyer covers all return shipping fees, determined by your selected courier. Return postage will be subtracted from your refund amount. Damaged/missing items from buyer negligence only qualify for partial refunds.

• Seller-caused issues (damaged/wrong items received): We cover all return shipping costs.

• For suspected quality/transit damage: Send a product usage video to us first. If our troubleshooting videos confirm factory functional defects, we fully cover return & replacement shipping fees.

 7.Return Procedures

Email hillhub@hotmail.com with your order number, return reason and product photos. We will reply within 2 business days to confirm your return details.

We will send return shipping instructions via email once your request is approved; you may choose any logistics provider for delivery. Unauthorized returns without prior confirmation will be rejected.

8.Return & Exchange Shipping Costs

We cover return postage for quality defect returns. Customers are responsible for shipping fees for return or exchanges due to personal preferences (e.g.color).

9.Exchanges

The fastest solution is to return your current item and place a new separate order after return approval. Buyers pay shipping fees for exchanges due to personal preference (e.g. color changes).

10.Warranty Policy

By placing orders on Hillhub, you agree to this Warranty Policy, Privacy Policy and Terms of Use.

We offer a 12–24 month limited warranty for water heaters. Contact hillhub@hotmail.com to file a warranty claim for product failures within the warranty period.

We will provide replacement parts, repair guides or brand-new units for damages caused by factory defective components. This warranty does not cover damage from improper human operation.

Note: This manufacturer warranty is non-transferable and invalid for second-hand goods purchased via eBay, Craigslist or other third-party resale platforms.