How can I join the ICO if I want to use BTC, I just see the BTC address 1HEATQCfWJKPWb8612K2oGR7EE6XPqNYHj in the website but don't know how-to-do, I don't want to use exchange since I am not familiar with these exchanges.
ICO is long over. You can buy in Heat App or on Exchanges.