The Upgraded 9815WH In-Wall Heater by ZHONTIN is designed to provide efficient and silent heating for spaces up to 120 sq ft. With a powerful 1500W nickel-chrome heating element and a crossflow fan operating at less than 22 decibels, this heater promises quick and quiet warmth, making it ideal for bedrooms, living rooms, and bathrooms.

However, user experiences have been mixed. Some customers reported receiving units that were previously installed or re-boxed, missing essential components like the wall mount metal box. Others noted issues with the thermostat knob, which did not match the product images and failed to fit flush with the unit. Additionally, there were instances where the heater arrived with disconnected wires, requiring immediate repair.

Despite these concerns, the heater boasts several positive features. It includes an adjustable thermostat for easy temperature control, a high-temperature safety shut-off device, and a permanently lubricated motor for reliable performance. The embedded installation design saves space and adds an aesthetic touch to any room.

ZHONTIN offers a one-year service support and detailed user manual to assist with installation and troubleshooting. If you encounter any issues, their responsive customer service team is available via email for prompt assistance.