Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: BernzOmatic PH3200C Patio Heater Copper
Product description: BernzOmatic Copper Finish Patio Heater - HEATING PERFORMANCE: Breatkthrough Heat Technology that Warms Your Body Head To Toe, Heats an extended 400 sq. foot area, Radiates heat from center cylinder, Efficient 40,000 BTU output, Up to 10 hour continuous run time, Adjustable heat settings. SAFETY FEATURES: Oxygen Depletion Sensor extinguishing pilot and flame before oxygen falls to un-safe levels, 100% Gas Shut-off if flame extinguishes, 30 Tilt Switch shuts unit off if tilted, Protective screen prevents contact with heat cylinder. SET-UP & USE: 2 Step set-up, no tools required, Quick start push button electronic ignitor, Wheels for easy moving, Disassembles in minutes for easy storage. ADDITIONAL FEATURES: Comes fully assembled, 1 year warranty, High density thermoplastic base provides stability and durability, Uses a standard 20lb propane cylinder (not included), Safe for all outdoor surfaces, including wood., Keep patio and deck guests warm from head to toe with this outdoor propane heater from BernzOmatic. The unit heats an extended 400-square-foot area, radiating heat from its tall center cylinder. With an efficient 40,000 Btu output, the heater offers up to 10 hours of continuous run time. Adjustable heat settings fine tune temperatures for optimal comfort. The unit is equipped with an oxygen-depletion sensor that extinguishes the flame and pilot light and cuts off all gas before carbon monoxide rises to un-safe levels. And, further bolstering safety, a 30-degree tilt switch shuts off the heater if it tips too far. The heater is also equipped with a protective screen that prevents contact with heat cylinder., Setting up in two easy steps with no tools required, this unit will be up and running right away, rather than another project sitting in the garage. And, the unit disassembles in minutes for easy storage. A quick-start, push-button electronic ignition fires up the warmth in a snap. The unit's high-density thermoplastic base provides stability and durability, while smooth-rolling wheels mean easy transport from patio to garage. The heater is fueled with a standard 20-pound propane cylinder (not included) and is safe for all outdoor surfaces, including wood. BernzOmatic covers this purchase with a 1-year warranty.
Product feature: Outdoor propane heater with 40,000 BTU output, Heats an extended 400-square-foot area, Cast aluminum body, stainless steel burn tube, and brass burn-tip for durability, High-density thermoplastic base with wheels for stability and transport, Protective screen prevents contact with heat cylinder; 1-year warranty
Product brand: Bernzomatic
Target attributes: Power Type
Answer: attribute: power type
value: propane
source: product feature
attribute: power type
value: propane
source: product description