Previous: E Cig of Denver is the premier seller of e-cigarettes and e-juice online, and in Denver locally. We have the highest quality products in the Federal Heights area. Our expert staff is here to help tailor the perfect electronic cigarette experience that is right for you. UPDATED: E-Cig of Denver - Federal Heights is the premier seller of e-cigarettes and e-juice online, and in Denver locally. We have the highest quality products in the Federal Heights area. Our expert staff is here to