The Tjernlund HS2 Gas Sidewall Power Venter Fan is a robust solution for sidewall venting, offering significant savings on materials and labor, especially in multi-story buildings. Its safety interlocks ensure proper exhaust, a feature not commonly found in traditional chimneys.

Many users have praised its performance and ease of installation. One user replaced a decade-old unit with the HS2 and reported flawless operation over two months. The included instructions were clear, making the installation process straightforward.

However, some users found the control board challenging to configure. One reviewer mentioned that while the HS1 control is innovative, it can be over-engineered, leading to complications during wiring. Despite this, the unit's reliability was not compromised.

Customer service experiences varied. While some users found Tjernlund's tech support helpful and knowledgeable, others faced frustration with unhelpful and dismissive representatives. This inconsistency in customer service could be a point of concern for potential buyers.

Overall, the Tjernlund HS2 is a cost-effective alternative to more expensive models and is highly recommended for those looking to upgrade their venting systems without replacing their entire furnace. Its performance and safety features make it a valuable addition to any home or building.