Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: ECOSMART 27 kW Electric Tankless Water Heater (for Radiant Heating) for use in Northern US and Canada (240 Volt) (112.5 Amps). Capable of heating 3 gallons per minute at temperatures as low as 37° (FREE BREO Skin Watch)
Product description: These Smart Technology electric tankless water heaters are configured for climates where incoming water temperature can reach as low as 37. The ECO 27 is capable of heating nearly 3 gallons per minute at this temperature. The ECO 27 is the largest electric tankless water heater available with Self Modulating Technology. These models are well suited for homes in the Northern U.S. and Canada. EcoSmart Radiant Heating - Hot Water (Hydronic) Radiant Floors - Hydronic (liquid) systems are the most popular and cost-effective radiant heating systems for heating-dominated climates. All radiant heating types and systems require an energy source. Traditionally, these were standard electric, gas, or oil fired boilers, wood-fired boilers, solar water heaters. Ecosmart electric tankless water heaters are 99.8% efficient making them the most efficient energy source for radiant heating. Ecosmart's heaters are able to operate on "closed loop" systems because the exclusive self-modulating technology reads the inlet water temperature. This also eliminates the need to keep a large tank or boiler continuously hot. Ecosmart tankless water heaters provide endless hot water on demand. Prior to purchase and installation please verify this model is the rights size for your hot water needs and electrical requirements. Temperature Rise for ECO 27 * 184 degrees at 1.0 GPM * 92 degrees at 2.0 GPM * 61 degrees at 3.0 GPM * 46 degrees at 4.0 GPM * 37 degrees at 5.0 GPM * 31 degrees at 6.0 GPM Specification ECO 27 * Voltage 240 * Phase Single * KW 27 kW * Elements 3 x 9 KW @ 240 V * Amperage Draw 112.5 Amps * Required Breaker 3 x 40 DP * Required Wire 3 x 8 AWG * Electrical Panel 200 Amps * HZ 50/60 * Pipes fittings 3/4" NPT * Dimensions (in.) 17" x 17.75" x 4.25" * Weight 11 lbs. * Exchanger Copper * Activation flow .25 GPM * Energy Efficiency 99.8 % * Certification: UL/CSA
Product feature: Voltage 240, Phase Single, KW 27 kW, HZ 50/60, Temperature Control Digital
Product brand: ECO RADIANT 18
Target attributes: Type
Answer: attribute: type
value: tankless
source: product description
attribute: type
value: tankless
source: product title