By using energy efficiently, energy costs can be further reduced. Space heating can be used more optimally to reduce energy usage. Different heating systems were investigated including a heat recovery ventilator with a forced-convection heater, a ground source heat pump and a stand-alone forced-convection heater. The heat exchanger required the least amount of energy for heating, but had the highest consumption for ventilation. Compared to the conventional room with the forced-convection heater, there was 52% less energy used. The ground source heat pump reduced total energy by 39% compared to the control room.
Comparative Evaluation of the use of Heat Exchanger, Ground Source Heat Pump and Conventional Heating Systems in Grow-Finish Rooms (full article)
