Do I need a bigger propane tank if I add a gas fireplace?
Usually not, if you already have a 250- or 500-gallon tank feeding a house — a fireplace adds only 20,000 to 40,000 BTU of peak demand, which a whole-home tank absorbs easily. You may need to upsize if you're on a small cylinder, a marginal tank, or you'll lean on the fireplace hard in cold weather.
When your current tank is fine
A gas fireplace is a light eater next to a furnace. If you've got a standard residential tank — 250 or 500 gallons — running your heat and hot water, adding a fireplace rarely forces a bigger tank. The extra fuel volume is small, and the tank has plenty of surface area to vaporize the added demand even on a cold morning. Most fireplace additions in propane country slot right into the existing setup.
When you'll want to size up
The picture changes at the small end. If you're feeding the fireplace off 100 lb cylinders or an undersized tank, two things can push you to upsize: refill frequency and vaporization. A little tank empties fast and, more important, may not boil off propane quickly enough on a frigid night to keep the flame full — you'll see it frost and fade. If the fireplace will be real backup heat you run hard during outages and cold snaps, a larger stationary tank earns its keep. Your propane supplier makes that call based on total load.
Getting the sizing right up front
We'd rather sort this out during the assessment than have you discover a weak flame in February. We calculate the fireplace's load, look at what else is on the tank, and flag it to your propane supplier if the tank looks marginal — they handle the tank swap, we handle the licensed line and the appliance. Getting fuel supply and line size right the first time is the whole point of using one accountable licensed company. Call (828) 545-0525.
How we can help
Related questions
- What size propane tank do I need to run a gas fireplace?
- Can my fireplace share a propane tank with my furnace and water heater?
- Do I need to tell my propane company before adding a gas fireplace?
- Does my existing gas line have enough capacity to add a fireplace?
- How much does it cost to buy or lease a propane tank when adding a gas fireplace?
- How do I know if my house has natural gas or propane?
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