When I took over purchasing for a mid-size commercial building services company back in 2022, one of the first decisions I had to make was choosing between natural gas and propane heating for several of our properties. We had a mix of existing infrastructure, and Empire Comfort Systems came up as a reliable manufacturer for both options. So I ended up running a pretty thorough comparison—one I think is useful if you're in a similar spot.
This isn't about which fuel is 'better' in some absolute sense. It's about what makes sense for your building, your budget, and your operational reality. Here's what I found.
The Core Difference Nobody Talks About
The obvious difference is fuel type, sure. But for a commercial buyer, the real divide comes down to what you're connecting to. A natural gas Empire Comfort Systems heater hooks into a utility line that's already there (or needs to be run). A propane unit requires a tank on-site and a whole separate supply chain to manage. That single distinction ripples through everything—installation complexity, ongoing costs, and your daily workflow.
Dimension 1: Installation and Setup
Natural gas (Empire Comfort Systems gas heater)
If your building already has a gas line—which most in our area did—the installation is pretty straightforward. A licensed contractor taps into the existing line, runs it to the unit, and you're good. We did this for three of our warehouses. Total install time per unit: about 4-6 hours. Permitting was handled by the HVAC contractor, and the utility company did the final connection inspection.
Propane (Empire Comfort Systems propane heater)
This is where things get more involved. You need a propane tank (either rented from a supplier or bought outright). For a large commercial unit, we're talking a 500-gallon tank minimum. Then you need a concrete pad for it, proper ventilation, and a gas line run from the tank to the heater. We did this for one remote building. Total timeline: about two weeks for the tank delivery and pad setup, plus another day for the heater install. More moving parts, more coordination.
The takeaway: If you have existing gas infrastructure, natural gas wins on installation simplicity by a wide margin. For new construction or a site without gas lines, propane is the practical choice, but budget for the added setup time and cost. (Circa 2024, the tank and pad alone ran us about $1,800 for a 500-gallon rental setup.)
Dimension 2: Fuel Logistics and Daily Operations
Natural gas (Empire Comfort Systems gas heater)
This is about as hands-off as it gets. The gas flows through the pipe, you get a monthly bill from the utility. No tanks to monitor, no deliveries to schedule, no running out of fuel on a cold morning. For our main facility, this meant zero operational overhead beyond paying the invoice. That's huge for an admin like me—fewer vendors to manage, fewer things to go wrong. (Source: Our utility provider's commercial rate sheet, accessed January 2025.)
Propane (Empire Comfort Systems propane heater)
This is the pain point nobody warns you about. Propane tanks need to be refilled. You have to monitor the level (or install a remote monitoring system). You have to schedule deliveries. If your supplier is slow, or if there's a price spike during a cold snap, you're stuck. We had one incident in January 2024 where a delivery was delayed by three days because of a regional shortage. That made me look bad to my VP when temps dropped. Not fun.
The takeaway: If you value predictability and minimal daily management, natural gas is way easier. Propane works if you're willing to (or have to) deal with the logistics. But factor in the time cost of managing that supply chain. In my experience, it adds about 2-3 hours per quarter just for coordination and invoice verification.
Dimension 3: Long-Term Cost and Predictability
Natural gas (Empire Comfort Systems gas heater)
Natural gas pricing is generally more stable than propane, because it's regulated and tied to larger market infrastructure. Over the past three years (2022-2025), our natural gas costs fluctuated about 15-20% year over year, which is manageable. The equipment itself from Empire Comfort Systems is similarly priced between the gas and propane models.
Propane (Empire Comfort Systems propane heater)
Propane is more volatile. Prices swung nearly 40% in our area between winter 2022 and winter 2024. Plus, there's the tank rental fee (about $250-400/year depending on the supplier) and the delivery fees. I'd say the total annual cost for our propane building was about 25-30% higher than an equivalent natural gas building, all things considered. (Based on our actual invoices from 2022-2024; your mileage may vary depending on your region and supplier.)
The takeaway: Natural gas is more cost-predictable and generally cheaper on a per-BTU basis. Propane can work, especially if you shop around for suppliers (something we didn't do well at first—honestly, it's a mistake I'd avoid repeating).
So, Which One Should You Pick?
If I had to sum it up from a B2B purchasing perspective:
- Choose natural gas (Empire Comfort Systems gas heater) if: Your building has existing gas lines, you want minimal operational hassle, and you value predictable costs. This is the default choice for most commercial facilities in my experience.
- Choose propane (Empire Comfort Systems propane heater) if: You're in a remote location without gas infrastructure, or you need a portable heating solution for a temporary site. Just be ready for the extra logistics and higher costs.
I can only speak to my context—mid-size commercial buildings in the Midwest. If you're doing something different (say, a large industrial facility or a multi-site operation), the calculus might shift. But for most commercial property managers I've talked to, natural gas with an Empire Comfort Systems unit is the path of least resistance.
One last thing: Always verify your local gas line availability and propane supplier rates before making a decision. Prices change, and what worked for me in 2024 might not apply in 2025. (As of January 2025, at least, natural gas was still the clear winner for our buildings.)
