How Much Does It Cost to Run a Propane Tankless Water Heater?
Running a propane tankless water heater can vary significantly based on several factors. The primary considerations are the inlet temperature of the water, the quantity of water to be heated, and the specific brand and model of the heater. Additionally, the cost per unit of propane also plays a crucial role. Your question is quite vague; however, I will break it down step-by-step to provide a clearer understanding.
Factors Influencing the Cost
The cost to run any water heater is directly linked to the amount of hot water used and the price charged by your supplier for the fuel. Here, we'll explore the nuances of propane tankless heaters, including the costs involved.
The Inlet Water Temperature
The initial temperature of the water has a significant impact on the energy required to heat it. Generally, the colder the water, the more propane is needed to bring it up to the desired temperature.
Quantity of Water to Be Heated
Another critical factor is the quantity of water that needs to be heated. More water means more energy consumption and, consequently, a higher cost.
Propane Usage and Specific Model
The specific brand and model of your tankless water heater determine its efficiency. Different models can vary in their propane consumption rates.
Cost per Unit of Propane
The cost of each unit of propane is another essential factor. This varies by location and supplier. It is important to consider these costs to get a clearer picture of your overall expenses.
Case Study: Operating a Propane Tankless Water Heater
Let's consider a real-life scenario to understand how these factors play out in practice. In our home, we live in a modern tankless propane water heater. We first moved into the house in May 2019 and had our 500-gallon buried propane tank refilled in June 2020. During that year, we had guests occasionally, but most of the time, there were just two of us in the house.
Propane Consumption Breakdown
For the gas consumed during the first year, we used it for several purposes: cooking, drying clothes, our fireplace gas logs, and running a 10KW backup power generator continuously for five days following Hurricane Dorian. Our total cost for propane during that year averaged $20.73 per month. If operating our tankless propane water heater accounted for half of our propane usage, then we spent approximately $10.36 per month on heating water.
Electrical Costs
It's worth noting that the electricity required to run the heater's electronics and igniter is relatively negligible. Our electrical costs were less than $0.10 per month.
Conclusion
Understanding the cost of operating a propane tankless water heater involves evaluating several factors, including water temperature, quantity, model, and the cost of propane. While your question was initially vague, this breakdown provides a clearer picture of the costs involved and how different factors can impact these expenses.
Frequently Asked Questions (FAQ)
Q: How does inlet water temperature affect propane usage?
A: Colder inlet water requires more propane to heat to the desired temperature.
Q: How much does it cost per gallon of water heated?
A: The cost per gallon depends on the specific heater and the price of propane. On average, it could range from $0.15 to $0.30 per gallon.
Q: What is the typical lifespan of a propane tank?
A: A well-maintained propane tank can last up to 12 years, but regular inspections are recommended.