The Friedrich PDH15K5SF 14500 BTUH 10,4 EER Heat Pump W/ Electric Heat is a high-efficiency, electric heat pump that uses 10,4 kWh/day of energy to heat up to 1,000 sq. ft. This unit is also equipped with a built-in electric heat pump, which means you don't have to purchase an additional heating unit. The Friedrich PDH15K5SF 14500 BTUH 10,4 EER Heat Pump W/ Electric Heat is a high-efficiency, electric heat pump that uses 10,4 kWh/day of energy to heat up to 1,000 sq. ft. This unit is also equipped with a built-in electric heat pump, which means you don't have to purchase an additional heating unit.