Thermador Vs Wolf Induction Cooktop . Both companies are made in the us and both manufacture a 36 inch unit. The max output is the same at 18,000 btu with 12,000 btu being the next most powerful. Wolf vs. Thermador vs. Viking Gas Cooktops (Reviews / Ratings / Prices from www.pinterest.com Regarding btu output, thermador pro harmony models comprise 18,000 btu, and thermador pro grand versions have approximately 22,000 btu. Even once the search is narrowed down to a specific heating type, there are many qualified cooktops to choose from. It is also the house favorite from our chef.