Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: ChimneyFree Aspen Infrared Electric Fireplace Mantel Package in Meridian Cherry - 28WM1751-C248
Product description: The Aspen Electric Fireplace Mantel Package in Meridian Cherry is what your family room or den has been missing. This elegant mantel features a rich, warm cherry finish that perfectly complements the subtle design elements of the mantel. Unique to this cherry fireplace, is the real, earth tone slate which serves as a surround for the large firebox. The colors of the mantel and slate perfectly meld to create a warm, inviting appeal. At the focus of the mantel is the large electric firebox which features a resin log set as well as an incredibly realistic LED flame effect. The flames flicker and dance creating the illusion of a real wood burning fireplace. If you simply need to take the chill out of a room or if you need more robust heat during the colder months, this powerful infrared heater will create supplemental heat for up to 1000 Sq. Ft. The SpectraFire Plus firebox lets you choose from 5 flame color, brightness and speed settings to create a truly unique appearance. Other available functions include temperature and sleep timer settings. For added convenience, a handheld remote is included. This unit also features Safer Plug technology which automatically detects any fluctuation in heat within the plug, preventing overheating to your unit and wall outlet.
Product feature: Traditional style mantel in cherry finish with real slate facing, 28-inch Infrared Firebox with SpectraFire Plus flame technology, 1500 Watts / 5200BTUs / 120V, Multi-function remote included, Product dimensions: 52 in. W x 44.375 in. H x 19 in. D
Product brand: ChimneyFree
Target attributes: Power Type
Answer: attribute: power type
value: electric fireplace
source: product description
attribute: power type
value: electric fireplace
source: product title
attribute: power type
value: watts
source: product feature