The Tjernlund HS2 Gas Sidewall Power Venter Fan is a robust solution for sidewall venting, designed to save time and money in various applications such as renovations, new constructions, or replacing deteriorated chimneys. It includes safety interlocks to ensure proper exhaust, a feature not commonly found in conventional chimneys.

Many users have praised its performance and ease of installation. One user mentioned that it works great and the included instructions are helpful, although the board can be a bit tricky to figure out. Another user replaced an old unit with the HS2 and found it to be a perfect fit, working flawlessly for two months.

However, some users have faced challenges with the installation process. One user had to deal with complex wiring issues and found the HS1 control over-engineered. Another user had a negative experience with customer support, describing it as unhelpful and rude. Despite these challenges, the unit eventually worked well after some troubleshooting.

Overall, the Tjernlund HS2 is a reliable and cost-effective solution for sidewall venting. It is particularly beneficial for those looking to avoid costly chimney installations or replacements. While there are some minor drawbacks related to installation complexity and customer support, the majority of users have found it to be a valuable addition to their HVAC systems.