What propane appliances can I use during a power outage?

During a power outage, propane appliances that do not require electricity to operate include: camp stoves and outdoor cookers for cooking, portable propane heaters (like the Mr. Heater Buddy line) for single-room heating, propane lanterns for lighting, and dual-fuel generators for electrical power. Propane ranges with standing pilot lights or battery ignition also work without electricity. Propane furnaces, tankless water heaters, and most modern propane fireplaces require electricity to run blowers, controls, and ignition systems, so they need a generator or battery backup to function during an outage.

Are vent-free propane heaters safe to use indoors?

Vent-free (ventless) propane heaters are designed for indoor use and include an oxygen depletion sensor (ODS) that shuts the unit off if oxygen levels in the room drop below a safe threshold. They are legal in most U.S. states but banned or restricted in California, Massachusetts, Montana, and some municipalities. When used according to manufacturer specifications, including minimum room size requirements, they provide effective supplemental heat. They are not intended as a primary heating source and should not be used in bedrooms or very small spaces. A CO detector is recommended in any room where a vent-free heater operates.

What is the difference between a dual-fuel and a propane-only generator?

A dual-fuel generator can run on either gasoline or propane, selected by a fuel switch. It has separate fuel systems with orifices sized for each fuel. On propane, it typically produces 10 to 15 percent less peak wattage than on gasoline because propane has a lower energy density per volume at the combustion chamber. The advantages of running on propane include cleaner combustion, longer engine life, no fuel stabilizer needed, and fuel that stores indefinitely. A propane-only generator runs exclusively on propane and is optimized for that fuel. Whole-home standby generators are typically propane-only or natural gas, connected directly to an ASME tank.

Can a propane refrigerator work without electricity?

Yes. Propane absorption refrigerators use a heat-driven absorption cycle instead of a compressor. A small propane flame heats an ammonia-water solution, which circulates through the cooling system by gravity and convection with no moving parts and no electricity required. They are common in RVs, off-grid cabins, and remote locations. They are significantly less energy-efficient than compressor refrigerators and cool more slowly, but their ability to operate without electricity makes them valuable for extended off-grid use or permanent installations beyond the power grid.

Which propane appliance should I buy first for emergency preparedness?

Start with cooking. A portable camp stove that runs on 1-pound canisters or connects to a 20-pound cylinder via adapter is the single most useful first propane appliance. It is inexpensive, simple, and addresses the most immediate need during any outage: preparing hot food and boiling water. From there, the next priority depends on your climate. In cold regions, a portable propane heater rated for indoor use is the second purchase. In moderate climates, a dual-fuel generator may be more useful. Build capability in layers rather than buying everything at once.

Home Self-reliance Energy Propane Propane Appliances

PROPANE GUIDE

Propane appliances. What propane can power in your home.

Propane powers cooking, heating, electrical generation, hot water, lighting, and even refrigeration. Some of these appliances work without electricity, which is what makes propane uniquely valuable for preparedness.

By category What to buy first

COOKING

Hot food, boiled water, no electricity required.

Cooking is where most households first encounter propane and where preparedness benefits are most immediate. Every propane cooking appliance listed here works without electricity.

7,000 - 20,000 BTU/HR

Camp stoves

Single or dual-burner portable stoves that run on 1-pound canisters or connect to a 20-pound cylinder via a hose adapter. The most practical first propane purchase for preparedness. A single 20-pound cylinder runs a camp stove for roughly 40+ hours of cooking.

Key feature: Completely portable. No installation. Works anywhere outdoors. Many models fold flat for storage.

5,000 - 15,000 BTU/HR PER BURNER

Propane ranges

Full kitchen ranges (cooktop plus oven) that connect to the home propane supply. Models with standing pilot lights or battery ignition work during power outages. Models with electronic ignition require electricity but can often be lit manually with a match (check the manufacturer's guidance for your specific model).

Key feature: Precise flame control. Instant heat adjustment. The preferred cooktop for most professional and serious home kitchens.

25,000 - 200,000+ BTU/HR

Outdoor cookers

Turkey fryers, crawfish boilers, outdoor wok burners, and high-BTU ring burners. These are outdoor-only appliances designed for rapid, high-heat cooking. A turkey fryer burner can boil large volumes of water faster than any kitchen stove, which has utility beyond cooking during a boil-water advisory.

Key feature: High BTU output for rapid boiling and large-batch cooking. Outdoor only.

HEATING

Keeping warm. The biggest propane consumer and the most critical.

Heating drives most household propane consumption. The range of propane heating appliances runs from a portable unit you can carry in one hand to a central furnace that heats an entire house. Knowing the landscape helps you choose what fits your situation and your backup strategy.

4,000 - 18,000 BTU/HR

Portable radiant heaters

The Mr. Heater Buddy and Big Buddy are the most recognized names in this category. They connect to 1-pound canisters (or 20-pound cylinders via hose adapter), produce radiant heat, and include an oxygen depletion sensor (ODS) for indoor use. No electricity, no installation, no venting required.

The Buddy (4,000-9,000 BTU/hr) heats a single room. The Big Buddy (4,000-18,000 BTU/hr) heats a larger space. Follow the manufacturer's room-size minimums. These are supplemental heaters, not primary heating systems.

Preparedness value: No electricity needed. Portable. The most accessible propane heating option for renters and apartment dwellers.

10,000 - 35,000 BTU/HR

Wall-mounted heaters

Permanent installations that mount on a wall and connect to the home propane supply. Two types: direct-vent units draw combustion air from outside and exhaust through a wall vent (the safer, preferred option). Vent-free units draw room air and release all combustion products into the room (relying on the ODS for safety).

Most wall heaters use a millivolt thermostat powered by a thermocouple in the pilot flame, so they operate without electricity. This makes them a true backup heating system that works during any power outage.

Preparedness value: No electricity needed on millivolt models. Permanent, reliable, and hands-off. A direct-vent wall heater is one of the strongest single-room backup heating investments.

20,000 - 40,000 BTU/HR

Propane fireplaces and inserts

Propane-fueled fireplaces and fireplace inserts provide zone heating with the visual appeal of a fire. Direct-vent models are sealed combustion systems that work without electricity on millivolt ignition. Some models include a battery backup for the ignition and fan.

Note: Models with electric blowers circulate more heat but require electricity. Without the blower, heat output is reduced but the unit still produces radiant heat during an outage.

40,000 - 120,000 BTU/HR

Central furnaces

The primary heating system in millions of homes beyond natural gas pipeline infrastructure. Propane furnaces are efficient (90-98% AFUE in modern condensing models) and heat the entire house through the existing ductwork. The catch for preparedness: they require electricity to run the blower motor, control board, and ignition system.

Preparedness note: A propane furnace without electricity is an idle furnace. It needs a generator or battery backup to function during an outage. Plan your generator capacity to include the furnace blower.

A note on vent-free heaters

Vent-free (ventless) propane heaters release all combustion products, including water vapor and trace carbon monoxide, into the room. They include an oxygen depletion sensor (ODS) that shuts the unit off if oxygen drops below a safe threshold. They are legal in most U.S. states but banned or restricted in California, Massachusetts, Montana, and some municipalities.

When used according to the manufacturer's room-size and ventilation specifications, they provide effective supplemental heat. They are not intended as a primary heating source, should not be used in bedrooms, and should not operate in rooms smaller than the manufacturer's minimum. A CO detector is recommended in any room where a vent-free heater operates.

POWER AND HOT WATER

Generators, water heaters, and the appliances that need electricity to run on propane.

PORTABLE: 3,000 - 12,000W

Dual-fuel generators

Run on either gasoline or propane via a selector switch. On propane, expect about 10-15% less peak wattage than the gasoline rating. The tradeoff is cleaner combustion, longer engine life, no fuel stabilizer needed, and fuel that stores indefinitely without degrading.

A dual-fuel generator connected to a 100-pound cylinder provides 25-55 hours of runtime depending on load, which is substantially more than a single tank of gasoline. For extended outages, the ability to refill a propane cylinder at any dealer extends your runtime as long as propane is available.

PERMANENT: 10,000 - 50,000W+

Whole-home standby generators

Permanently installed outside the home, connected to an ASME tank, and wired through an automatic transfer switch. When utility power fails, the standby generator starts automatically within seconds and powers the house until utility power returns. No manual intervention needed.

The premium option for energy preparedness. High upfront cost (typically $5,000-$15,000 installed) but zero-effort operation during outages. Fuel consumption is significant at full load, so a 500-gallon ASME tank is recommended.

30,000 - 50,000 BTU/HR

Tank water heaters

Standard tank-style propane water heaters store 40-50 gallons of hot water and maintain temperature with a standing pilot and thermocouple. Many models require no electricity at all, making them functional during outages as long as the propane supply and water pressure hold.

Key advantage: Models with standing pilot lights and gravity-fed gas valves work without electricity. Check your specific model.

150,000 - 199,000 BTU/HR

Tankless water heaters

Heat water on demand with no storage tank. High BTU rating, but propane is consumed only when hot water is flowing. Efficient for daily use. The preparedness limitation: every tankless model requires electricity for the control board, ignition, and flow sensor. No electricity means no hot water, regardless of propane supply.

Preparedness note: Requires a generator or battery backup to function during an outage. Factor this into your backup power plan.

LIGHTING, REFRIGERATION, AND HOUSEHOLD

The rest of the propane landscape. Some of these work off-grid.

Propane lanterns

Outdoor propane lanterns (Coleman-style) produce bright, warm light from a mantle heated by a propane flame. They run on 1-pound canisters and provide several hours of light per canister. Indoor-rated propane lanterns exist but are less common. Most propane lanterns are outdoor-only due to heat and combustion products.

Useful for outdoor task lighting during outages. For indoor lighting, battery-powered LED lanterns are safer and more practical.

Propane refrigerators

Absorption-cycle refrigerators use a small propane flame to drive a heat-driven cooling cycle. No compressor, no moving parts, no electricity. Common in RVs, off-grid cabins, and remote locations. Brands like Unique and EZ Freeze make residential-sized models designed for permanent off-grid installations.

They cool more slowly and are less energy-efficient than compressor refrigerators, but they work indefinitely on propane alone. A niche appliance, but the only true off-grid refrigeration option that does not depend on solar panels or batteries.

Clothes dryers

Propane clothes dryers work like electric dryers but use a propane flame for heat instead of an electric heating element. They still require electricity to run the drum motor, controls, and timer. Faster drying time and lower operating cost than electric in areas where propane is cheaper than electricity per BTU.

Not a preparedness priority. Requires electricity to operate. Clotheslines work without fuel.

Propane-powered ovens and smokers

Standalone outdoor propane ovens and propane smokers are useful for outdoor cooking beyond the camp stove. A propane smoker lets you preserve and prepare meat in quantity. These are outdoor appliances that connect to standard 20-pound cylinders.

The outdoor oven and smoker are practical additions if you cook outdoors regularly or process large quantities of food.

Patio heaters

Freestanding or tabletop propane heaters for outdoor living spaces. High BTU draw (30,000-45,000 BTU/hr for freestanding models). They extend your usable outdoor season and provide warmth during outdoor tasks in cold weather.

Outdoor only. Not a preparedness priority, but functional for keeping an outdoor workspace warm during cold-weather outage work.

Propane-powered tools

Propane torches for soldering, brazing, and heat-shrinking. Weed burners for vegetation control. Concrete curing blankets. Roofing equipment. These are specialized tools that use small Bernzomatic-style cylinders or connect to 20-pound tanks. Not household appliances, but worth knowing they exist in the propane ecosystem.

Propane torches are in the Tools section of the site. These are work tools, not energy appliances.

BUILDING YOUR CAPABILITY

What to buy first, second, and what can wait.

You do not need every propane appliance at once. Build capability in layers, starting with the cheapest and most immediately useful, then adding based on your climate, your housing situation, and how deep you want your energy independence to go.

START HERE

Layer 1: Cooking

A portable camp stove and two 20-pound cylinders. Total cost: under $100. This gives you the ability to cook hot meals and boil water during any outage. The fuel lasts weeks of normal cooking use. This single purchase covers the most basic and most immediate need.

Add a hose adapter so the camp stove connects directly to the 20-pound cylinder instead of burning through expensive 1-pound canisters. Keep a few 1-pound canisters for grab-and-go portability.

COLD CLIMATES

Layer 2: Single-room heating

A portable indoor-rated propane heater (Buddy or Big Buddy) for short-term use, or a permanently installed direct-vent wall heater for a more permanent solution. Either gives you the ability to keep one room warm enough to sleep safely during a winter power outage.

If you own your home and live in a cold climate, a direct-vent wall heater with millivolt ignition is one of the best single investments in energy preparedness. It requires no electricity and no intervention.

EXTENDED OUTAGES

Layer 3: Electrical generation

A dual-fuel generator (3,000-7,500W) connected to a 100-pound cylinder or a pair of 20-pounders on a changeover valve. This adds refrigeration, lighting, device charging, and the ability to run propane appliances that need electricity (furnace blowers, tankless water heaters).

A generator is a force multiplier for every other appliance in your household. With a generator running, your propane furnace works, your well pump works, and your refrigerator preserves food.

DEEP CAPABILITY

Layer 4: Whole-home systems

An ASME tank with bulk delivery, a standby generator with automatic transfer switch, a propane water heater, and a propane range. At this level, your home runs on propane as a primary or co-primary fuel source. A 500-gallon tank kept above 30% gives you weeks of full-home operation during any grid disruption. This is the deepest propane capability for a residential property.

Propane guides