Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Aviditi XFJ180H Tankless Electric Water Heater with Metal Case, 18kw 6 GPM
Product description: The Aviditi tankless electric water heater features a unique metal cover with that is water splash proof and resistant to corrosion and ageing. We have adopted a patented heating technology that is an enclosed loop heating system. This provides for you instant hot water with less heating loss. Our unique noao insulation material totally separates water from electricity for added protection. Our tankless electric water heater features a multi-layer, structured heating chamber that is used to form a long circulating water channel which prevents lime scale and offers this units long lifespan. All of our tankless electric water heaters feature electricity leakage, anti-scalding, over-pressure and over temperature protection. Even water and electricity isolation protection. The direct temperature setting and automatically thermostat ensure that the hot water temperature will be constant. Featuring a automatic memory function to help avoid repeated operation. Our LED widescreen touch screen display shows you the working condition, outlet temperature, working time, power consumption and water consumption. The easy to use conversion display mode give you the ability to change between Celsius degree and Fahrenheit degree instantly. This unit also features a fault auto-detection technique giving you the ability diagnose failure issues instantly as the cause will be displayed automatically on the LED screen. Unit requires a Copper 3/4 NPT connection. Technical Data: Voltage/Freq 240v/60Hz. Max Amp Load: 75 Amps
Product feature: Metal cover with print, Multi-layer structure heating chamber, LED widescreen touch display screen, Adopts patent heating technology, Electricity leakage protection
Product brand: Aviditi
Target attributes: Type
Answer: attribute: type
value: tankless
source: product description
attribute: type
value: tankless
source: product title