SunnyTherm® solar hot air heating panels have a five year limited warranty against defects in materials and workmanship. Central Solar Inc., the manufacturer of SunnyTherm®, reserves the option of replacing returned items with updated versions, repairing the returned item, or refunding the purchase price. All returns must be accompanied by a copy of the receipt showing the date of purchase.

No warranty is made on defects caused by improper installation or damage due to dropping or abuse. Warranty is limited to repair or replacement of defective items.