Gas Tankless Water Heaters
ThermoMate gas tankless water heaters are designed to provide hot water on demand for homes, cabins, apartments, small homes, outdoor showers, and off-grid living spaces. Unlike traditional storage tank water heaters, a gas tankless water heater heats water only when needed, helping save space while supporting continuous hot water for daily use. Whether your home uses propane or natural gas, ThermoMate offers tankless gas water heater options for different installation environments and hot water needs.
Choose Your Gas Tankless Water Heater Type
Select the right fuel type based on your home setup, available gas supply, and hot water usage. Propane models are ideal for cabins, small homes, apartments, outdoor showers, and off-grid applications, while natural gas models are a strong choice for whole-house hot water where a natural gas line is available.
Propane Tankless Water Heaters
Propane tankless water heaters are a flexible choice for spaces where natural gas lines are not available. They are commonly used in cabins, small homes, apartments, outdoor showers, rural properties, and off-grid living setups.
Shop Propane Tankless Water HeatersNatural Gas Tankless Water Heaters
Natural gas tankless water heaters are ideal for homes already connected to a natural gas supply. They are often used for whole-house hot water, multiple bathrooms, kitchens, laundry rooms, and larger daily hot water needs.
Shop Natural Gas Tankless Water HeatersPropane vs Natural Gas Tankless Water Heaters
Choosing between propane and natural gas depends on your fuel access, installation location, household size, and hot water usage. Both options can provide on-demand hot water, but they are best suited for different scenarios.
| Comparison | Propane Tankless Water Heater | Natural Gas Tankless Water Heater |
|---|---|---|
| Fuel Source | Uses propane tank or propane supply | Uses natural gas utility line |
| Best For | Cabins, small homes, apartments, outdoor showers, off-grid living | Whole house, larger homes, multiple bathrooms, daily residential use |
| Installation Flexibility | More flexible where gas utility lines are unavailable | Best for homes with existing natural gas connection |
| Common Use Cases | Cabin, outdoor shower, tiny home, remote property, small home | Whole-home hot water, bathrooms, kitchens, laundry rooms |
| Fuel Availability | Good for rural or off-grid locations | Best for urban or suburban homes with gas service |
| Outdoor / Remote Use | Better suited for remote applications | Usually better for permanent residential installation |
| Recommended Product | 4.4 GPM Propane Tankless Water Heater | 9.38 GPM Natural Gas Tankless Water Heater |
Propane Tankless Water Heater
Fuel Source: Uses propane tank or propane supply
Best For: Cabins, small homes, apartments, outdoor showers, off-grid living
Installation Flexibility: More flexible where gas utility lines are unavailable
Fuel Availability: Good for rural or off-grid locations
Recommended: 4.4 GPM Propane Tankless Water Heater
Natural Gas Tankless Water Heater
Fuel Source: Uses natural gas utility line
Best For: Whole house, larger homes, multiple bathrooms, daily residential use
Installation Flexibility: Best for homes with existing natural gas connection
Fuel Availability: Best for urban or suburban homes with gas service
Recommended: 9.38 GPM Natural Gas Tankless Water Heater
Find the Right Gas Tankless Water Heater for Your Space
Whole House
For whole-house hot water, a natural gas tankless water heater is often the better choice if your home already has a natural gas line. For larger households, consider a high-flow model such as the 9.38 GPM Natural Gas Tankless Water Heater.
View Natural Gas ModelCabin
For cabins or remote properties, propane is usually the more practical option because it does not require a natural gas utility connection. It can provide hot water for showers, sinks, and seasonal living.
Shop Propane ModelsApartment
For apartments or compact residential spaces, a gas tankless water heater can help save space while providing hot water on demand. Always follow local codes and installation requirements.
Browse Propane OptionsSmall Home
Small homes usually need a compact, efficient hot water solution. A propane gas tankless water heater can be a strong fit for small households, guest houses, or secondary living spaces.
View Propane ModelOutdoor Shower
For outdoor showers, poolside rinsing, pet washing, or garden utility areas, propane tankless water heaters are often the better fit for flexible outdoor or semi-outdoor hot water applications.
Shop Propane ModelsOff-Grid Living
For off-grid homes, tiny homes, cabins, and remote properties, propane is usually more practical than natural gas because it can be supplied by propane tanks.
Explore Off-Grid OptionsExplore ThermoMate Gas Tankless Water Heater Options
Propane Tankless Water Heaters
Browse propane tankless water heaters for cabins, apartments, small homes, outdoor showers, and off-grid hot water applications.
Shop PropaneNatural Gas Tankless Water Heaters
Shop natural gas tankless water heaters for whole-home use, multiple bathrooms, kitchens, laundry rooms, and daily residential hot water needs.
Shop Natural Gas4.4 GPM Propane Tankless Water Heater
A practical propane option for small homes, cabins, apartments, outdoor showers, and moderate hot water needs.
View Product9.38 GPM Natural Gas Tankless Water Heater
A high-flow natural gas option for whole-house hot water, larger households, and multiple fixtures.
View ProductGas Tankless Water Heaters for Flexible Hot Water Needs
A gas tankless water heater is a space-saving alternative to a traditional storage tank water heater. Instead of keeping a tank of water hot throughout the day, it heats water as it flows through the system. This makes gas tankless water heaters suitable for homeowners who want continuous hot water, better space efficiency, and flexible installation options.
ThermoMate gas tankless water heaters are available in propane and natural gas options. Propane models are often selected for cabins, apartments, small homes, outdoor showers, and off-grid living. Natural gas models are commonly used for whole-house hot water in homes with an existing gas line.
When choosing a tankless gas water heater, consider your fuel source, GPM requirements, number of bathrooms, installation location, venting requirements, and local building codes. A properly selected gas tankless water heater can help support reliable hot water for everyday home comfort.
Gas Tankless Water Heater FAQ
What is a gas tankless water heater?
A gas tankless water heater heats water on demand using propane or natural gas. Unlike a traditional tank water heater, it does not store a large volume of preheated water. Instead, it heats water as needed when you turn on a hot water fixture.
Is propane or natural gas better for a tankless water heater?
Propane is often better for cabins, small homes, outdoor showers, rural properties, and off-grid living where natural gas lines are not available. Natural gas is usually better for whole-house hot water in homes already connected to a natural gas utility line.
Can a gas tankless water heater be used for a whole house?
Yes. A gas tankless water heater can be used for whole-house hot water when it is properly sized. For larger homes or multiple bathrooms, a higher GPM natural gas model may be a better fit.
What GPM gas tankless water heater do I need?
The right GPM depends on how many fixtures you want to run at the same time. A small home or cabin may need a lower GPM model, while a whole house with multiple bathrooms may require a higher GPM model. Consider showers, sinks, appliances, incoming water temperature, and simultaneous use.
Does a gas tankless water heater need venting?
Most indoor gas tankless water heaters require proper venting because propane and natural gas combustion produce exhaust gases. Always follow the product manual, local codes, and professional installation requirements.
Can I use a gas tankless water heater for a cabin?
Yes. Propane tankless water heaters are commonly used for cabins because they do not require a natural gas utility line. They are a practical choice for remote properties, seasonal homes, and off-grid living spaces.