Temperature Differential: The draft is usually affected from the temperature difference between the chimney interior and the outside air. Colder external temperatures can increase draft, when hotter temperatures may weaken it. Chimney Top: Taller chimneys typically generate much better drafts due to bigger temperature difference between the highest and base https://electricfireplaceinsert15936.shoutmyblog.com/27729600/an-unbiased-view-of-modern-fireplace