Quick Answer
A 30-40 gallon tank is a suitable size for continuous heating with a heat propane wall heater, assuming moderate usage and a moderate climate.
Calculating Tank Size for Continuous Heating
When determining the tank size for continuous heating, consider the heater’s BTU output, the tank’s thermal mass, and the desired temperature range. A general rule of thumb is to size the tank based on the heater’s BTU output and the desired temperature rise. For example, if the heater produces 30,000 BTU/h and you want to maintain a temperature of 70°F (21°C) in a moderate climate, a 30-40 gallon tank would be a suitable size.
Factors Affecting Tank Size
Several factors can affect the required tank size, including the heater’s efficiency, the tank’s insulation, and the climate. In colder climates or with less efficient heaters, a larger tank may be necessary to maintain the desired temperature. Additionally, if the tank is not well-insulated, more heat will be lost, requiring a larger tank to compensate.
Practical Considerations for Tank Size
When selecting a tank for continuous heating, consider the space available, the material, and the cost. A steel tank with a diameter of 24-30 inches and a height of 36-42 inches would be a suitable size for a 30-40 gallon tank. It’s essential to ensure the tank is properly installed, insulated, and sized for the specific application to ensure safe and efficient operation.
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