Quick Answer
A propane heater can be indirectly powered by renewable energy through the use of a hybrid system that combines the propane heater with a renewable energy source like solar or wind power to generate electricity which then charges a battery bank. The stored energy is then used to power an inverter which can power the propane heater. This setup is often more practical than trying to directly power a propane heater with renewable energy.
Design Considerations
When designing a hybrid system to power a propane heater with renewable energy, it’s essential to consider the total energy requirements of the heater. A typical propane wall heater consumes around 30,000 to 40,000 BTUs per hour. To determine the required battery bank size, you’ll need to calculate the total energy consumption of the heater in watt-hours. Assuming a 35,000 BTU/hour heater, which is equivalent to approximately 10,200 watts, you’ll need a battery bank with a capacity of at least 24 kWh to ensure continuous operation of the heater for 8 hours. This can be achieved with a combination of 24 deep cycle batteries and a suitable inverter to ensure a stable power output.
System Components
To create a hybrid system that powers a propane heater with renewable energy, you’ll need the following components: a renewable energy generator (solar panels or a wind turbine), a charge controller, a battery bank, an inverter, and a propane heater with an electrical ignition system. The solar panels should be sized to generate at least 24 kWh of energy per day, depending on the system’s efficiency and the required battery bank capacity. A 24V charge controller is recommended to regulate the flow of energy from the solar panels to the battery bank. The inverter should be capable of handling the high current required by the propane heater and should also have a high surge capacity to handle the startup currents of the heater.
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