How Much Are Propane Heaters? A Clear Look at Prices, Running Costs, and What to Buy
You have seen that heater being sold in one store at 80 and in another store at 160. And then you see a patio model at 400 and a job-site monster at 250. But what is a reasonable price?
Short answer: The average price of propane heaters is approximately 70 to 500. Small portable radiant models tend to come in under 150. Mid-size and heavy-duty models cost approximately 150 to 300. Freestanding patio heaters and forced-air units of large size are frequently more expensive. One costs about 30 cents to 1.30 an hour to run, depending on size and the price of propane.
Key Takeaways
- Price is based on heat output (BTU), type, and safety features, and not brand.
- The larger long-term cost is fuel. A 9,000 BTU heater burns about 0.1 gallon an hour.
- Allocate funds to the tank, hose and regulator, and not only the heater.
- Before you purchase, check the model to determine whether it is rated to be used indoors. Not all are.
How Much Are Propane Heaters?
Propane heaters can be priced at an average of $70-500 depending on the type and heat output. Small bright portables are the lowest priced. The most expensive are large forced-air and patio heaters.
| Type | Typical price | Best for |
|---|---|---|
| Small portable radiant (about 3,800 BTU) | About $70 to $115 | Tents, ice shacks, small rooms |
| Mid-size portable radiant (about 9,000 BTU) | About $80 to $120 | Garages, workshops, campsites |
| Larger portable radiant (about 11,000 to 18,000 BTU) | About $80 to $200 | Cabins, bigger garages, backup heat |
| Heavy-duty portable (about 35,000 BTU) | About $220 and up | Large shops, job sites |
| Tank-top forced air (15,000 BTU and up) | Estimated $100 to $400 | Construction, barns, open work areas |
| Freestanding patio heater | Estimated $100 to $500+ | Patios, restaurants, outdoor seating |
These are estimates based on retailer prices that I looked at in 2026. One large retailer offers the Mr. Heater Little Buddy at sale price of $69 and the Portable Buddy 9,000 BTU at sale price of 89 and a 35,000 BTU heavy-duty portable at sale price of 218.
The tank-top and patio rows are approximations, as I was unable to verify a stable price. Never buy without first checking the live price.
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What Affects the Price of a Propane Heater?
The price is driven by heat output, heater type, safety features and build quality. Brand issues as well, but primarily due to the fact that well-known brands incorporate certified safety systems.
BTU output. The more BTUs, the more heat and the greater the price. A 18,000 BTU heater will be more expensive than one with 4,000 BTU.
Type. Radiant heaters heat objects and people directly. Forced-air heaters force the hot air and transfer the heat more quickly over a large area. Patio heaters are constructed to be used in the open air and are more expensive due to their size and construction.
Safety systems. Search a tip-over shutoff and low-oxygen shutoff. An example of this is the Buddy Flex, which includes a thermal shutdown system and tip-over shutoff. Such features are not free, and they are worth it.
Ignition and design. The sticker price is augmented with electronic igniters, carry handles, built in storage, and hose options.
Popular Propane Heater Models and What They Cost
The most popular portable propane heaters are the Mr. Heater Buddy series: Little Buddy, Portable Buddy, Buddy Flex, and Big Buddy. Prices are highly variable depending on the retailer and season.
Mr. Heater Little Buddy (3,800 BTU). The youngest of the family. Fits well in narrow places. Prices I saw were between approximately $69 and 115.
Mr. Heater Portable Buddy (9,000 BTU). The best-known all-rounder. I found it priced between approximately $89 and $119 at one retailer.
Mr. Heater Buddy Flex (11,000 BTU). This model had a list price of $209.90 by Mr. Heater, but according to deal posts, it was available at Walmart and Lowe’s around $129. It was priced at Home Depot at $79.88 in another deal tracker in late 2024. It is a good reminder that the regular price and the street price may differ significantly. In some areas, some of them are only sold as outdoor-only, so check the label.
Mr. Heater Big Buddy (4,000 to 18,000 BTU). It operates on 1 lb cylinders, or a 20 lb tank with a hose, and it fits in areas up to approximately 440 square feet. I was unable to verify a single current price, so cross-check listings prior to purchasing.
Also check models in Dyna-Glo, Camco and other brands at the stores that your competitors are stocking like Home Depot, Lowe, Tractor Supply, and Walmart. Don’t judge by the price tag, but also by BTU, safety features, and included hoses.
How Much Does It Cost to Run a Propane Heater?
The cost of a propane heater is approximately 13 cents to $1.30 an hour at full blast, depending on the size and your propane price. Approximately 91,500 BTU is contained in a single gallon of propane, and thus you can calculate the cost yourself.
The following is the calculation of the maximum output (estimates, with propane at 3 or 4 per gallon):
| Heater output | Gallons per hour | Cost per hour at $3 | Cost per hour at $4 |
|---|---|---|---|
| 4,000 BTU | About 0.04 | About $0.13 | About $0.17 |
| 9,000 BTU | About 0.10 | About $0.30 | About $0.39 |
| 18,000 BTU | About 0.20 | About $0.59 | About $0.79 |
| 30,000 BTU | About 0.33 | About $0.98 | About $1.31 |
The standard 20 lb tank is capable of holding approximately 4.7 gallons or 430,000 BTU. That is approximately 18,000 BTU an hour, or about 24 hours of high heat. When set on low, it takes a long time.
The price of your actual propane will depend on your location and the exchange or refill of a tank. Review local prices prior to budget planning.
How to Pick the Right Size (BTU Guide)
Adjust the heater to the space, not the largest number on the box. Manufacturers post their own coverage numbers. The above table indicates that according to Mr. Heater, the 11,000 BTU Buddy Flex serves approximately 275 square feet and the Big Buddy serves approximately 440 square feet.
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The coverage in the real world is determined by insulation, ceiling height, wind and the outside coldness. A leaky garage will require more heat than a shop of equal size with a seal.
Rule of thumb: Select a heater that has slightly greater capacity than you believe is required, and then operate it at a lower power level. It warms up quicker and tends to burn fuel more efficiently than a small unit operating on full blast.
For a deeper look at heater types, see our guide to the best type of space heater.
Hidden Costs Most Buyers Forget
The price of the heater is not the only part of the bill. Arrange the following extras:
- Propane cylinders or tank. Small 1 lb cylinders are more expensive than a 20 lb tank per gallon of fuel.
- Hose and regulator. A large number of portable heaters require an adapter hose to operate on a 20 lb tank.
- Fuel filter. Adding one is optional to prevent tank contaminants on the heater by some Big Buddy owners. One of the listings includes a fuel filter to the Big Buddy at approximately 21.
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- Carry case. Convenient when you are on the road with the heater.
- Carbon monoxide alarm. An essential when you are using the heater indoors.
- Refill or tank exchange charges. These are region and retailer dependent.
If you want to hook a Buddy-style heater to a 20 lb tank, here is the full process: how to attach a Mr. Heater to a propane tank.
Cheap vs. Quality: Is It Worth Paying More?
In the case of propane heaters, it is generally worth paying more when the additional cost is purchased in the form of safety features and a known quality of construction. The price of an unknown brand is very low, which is a red flag.
What to look forward to with less expensive heaters: Less heat, less safety features, and less warranty.
What you receive with mid-priced heaters: Tip-off and low-oxygen shutoffs, enhanced ignition, and readily available parts.
When it is worth the premium: Large spaces, heavy usage, business, or patio seats where appearance is important.
Pro tip: Do not use price when indoors. Ensure that the heater is specifically designed to be used indoors, and consult the manual on ventilation requirements. Even indoor-rated heaters burn fuel and use oxygen. Open a window and a CO alarm.Our step-by-step propane heater safety guide walks through it.
Propane vs. Electric vs. Kerosene Heater Costs
Propane heaters are typically cheaper to purchase than patio-type electric ones and operate without electricity. Electric heaters are easier to use indoors but may be more expensive per hour in most locations. Kerosene is in the middle, in terms of fuel prices, but has storage and smell problems.
| Factor | Propane | Electric | Kerosene |
|---|---|---|---|
| Upfront price | Low to moderate | Low to moderate | Moderate |
| Needs power | No | Yes | No |
| Fuel storage | Tank or cylinder | None | Fuel can |
| Best for | Outdoors, garages, backup | Bedrooms, offices | Outdoor, workshops |
Electric heat cost depends on your local rate and the heater’s wattage. If you are comparing, our guides on which space heaters use the least electricity and how much a kerosene heater costs can help you run the numbers.
Common Mistakes When Buying
- Purchasing on price only. The most affordable heater might not have important safety features.
- Ignoring BTU. Too small it never heats the room. Excessively big and it burns up fuel.
- Losing the fuel arrangement. A lot of customers discover after making purchases that they require a hose or an adapter.
- Suppose all the models are indoor safe. Some are outdoor only. Read the label.
- Omitting the CO alarm. It is inexpensive and it may save a life.
- Failure to verify the policy of returns. There may be a difference between online prices and store prices, and the open-box rules may vary.
Buying Checklist
- Measuring the space and verifying the coverage rating of the maker.
- Indoor or outdoor rating.
- Find low-oxygen shutoffs and tip-over.
- Choose between 1 lb cylinders and 20 lb tank.
- Price the hose, regulator, and filter.
- Purchase a CO alarm in case you are going to use it indoors.
- Shop around between two or more retailers as sale prices fluctuate frequently.
FAQs
What is the price of a propane heater?
Most cost about $70 to $500. Small portables are the lowest priced, while large forced-air and patio heaters are more expensive.
What is a good price for a propane heater?
A typical price for a good portable radiant heater is between $80 and $200. Sales and seasonal discounts can reduce the price.
What is the cost of operating a propane heater in an hour?
Operating costs can range from about 13 cents to $1.30 per hour at full power, depending on the heater size and local propane price.
How many hours does a 20 lb propane tank last in a heater?
A 20 lb tank holds about 430,000 BTU. At 18,000 BTU per hour, it can last just under a full day. Using a lower heat setting extends the runtime.
What is the number of gallons of propane that a heater burns per hour?
Divide the heater’s BTU rating by approximately 91,500 to estimate gallons of propane used per hour. A 9,000 BTU heater consumes about 0.1 gallon per hour at full power.
Is a propane heater less expensive than an electric heater?
It depends on your local propane and electricity rates. Propane heaters can also operate without electricity, which can be useful during a power outage.
Is it possible to use a propane heater indoors?
Only use a propane heater indoors if the specific model is approved and marked for indoor use. Provide proper ventilation, use a carbon monoxide alarm, and follow the manufacturer’s instructions.
What is the size of the propane heater that I require?
Check the coverage rating provided by the manufacturer. For example, an 11,000 BTU model may be rated for approximately 275 square feet, while an 18,000 BTU model may cover approximately 440 square feet.
Which is the lowest priced propane heater?
Small portable radiant heaters, such as the Little Buddy, are often among the lowest-priced options, with some models offered at around $69.
Are propane heaters electrically powered?
Most portable radiant propane heaters do not require electricity. However, some forced-air propane heaters require electricity to operate their fan.
What is the cost of a propane tank to heat with?
The cost depends on the tank size, your location, and whether you exchange or refill the tank. Check local propane suppliers and retailers for current prices.
What is the best place to purchase a propane heater?
Propane heaters are available from retailers such as Home Depot, Lowe’s, Walmart, Tractor Supply, and specialty heating stores. Compare prices, warranties, and return policies before buying.
Are propane heaters worth using?
Yes. Propane heaters can be useful for garages, cabins, camping, patios, and backup heat when the heater is properly sized and operated according to safety requirements.
What do I do to light a Mr. Heater?
To light a typical Mr. Heater portable propane heater, connect the propane supply, open the tank valve, turn the control knob to PILOT, press and hold the knob, and use the built-in igniter. Continue holding the knob for about 30 seconds after the pilot lights, then release it and select the desired heat setting. Always follow the instructions for your specific model.
Final Thoughts
One of the cheapest methods of adding heat where you lack a ready power source or a vent is a propane heater. The range of a garage, a cabin or a campsite is encompassed by most people by a quality portable radiant model between 80 and 200 dollars. Only spend more when you require serious BTUs or an outside appearance.
Consider the entire price: the heater, the gas, and the little extras. Find the correct BTU rating to match your space, safety features instead of a low-bottom price, and never omit a CO alarm indoors. Do it and you have warm, uninterrupted heat.
