Charmglow ventless heaters can be purchased online through mass retail sites, such as Amazon, as well as home improvement and hardware stores, such as Home Depot. Online auction websites, such as eBay, also feature ventless heaters, although the nature of the sites means that selection and availability can vary.
Users searching for Charmglow ventless heaters on Amazon have the option to filter search results through a variety of criteria, including price range and shipping options. Amazon offers free shipping on many items, but it also features items sold by third-party vendors who set their own shipping prices, so it is important for consumers to consider the cost of shipping when making any purchase on the site. Most listings contain detailed reviews that include a quantitative satisfaction rating as well as a written description of customers' experience with the product.
The Home Depot website also contains user reviews of the products it sells. Users shopping online have the option to check to see if a particular item is currently in stock in different stores. If a store does carry a particular item, it can be reserved online so that the user can go to that store and pick it up to avoid shipping costs.