When you're thinking about upgrading your home's hot water system, going tankless is a smart move for saving space and energy. For those who use propane, finding the right Best Lp Tankless Water Heater can seem a little daunting, but it doesn't have to be. I've spent the last few months digging into what makes these units tick, looking at flow rates, efficiency ratings, and how they perform in real-world situations, and have narrowed down the top contenders.
After reviewing a wide range of options, the Ranein Propane Gas Tankless Water Heater stands out for its solid performance and overall user satisfaction in busy households. It offers a great balance of features without breaking the bank. Let's dive into the details to help you figure out which one will be the perfect fit for your home.
Comparison Chart of Best Lp Tankless Water Heater
List of Top 10 Best Best Lp Tankless Water Heater
We looked at everything from the maximum flow rate (GPM) to energy efficiency and ease of installation when making our selections. We also considered how well each unit performs under different demands, like running multiple appliances at once. You'll find a variety of options below, designed to suit different home sizes and hot water needs.
Below are the list of products:
1. Ranein Propane Gas Tankless Water Heater
1. Ranein Propane Gas Tankless Water Heater
In our research, the Ranein Propane Gas Tankless Water Heater consistently came up as a reliable choice for homeowners looking for a robust system. It's designed for indoor installation and boasts a high maximum flow rate, meaning you can run a couple of showers simultaneously without seeing a drop in temperature. The unit's energy efficiency also means it can help trim down your propane bills compared to older tank-style heaters.
Why I picked it
This Ranein model is a standout because it offers a significant BTU output and a high GPM rating, making it capable of handling the hot water demands of larger homes or those with high usage patterns. Its indoor installation design also makes it a versatile option for many different living spaces.
Key specs
- Max Flow Rate: 8.5 Gallons Per Minute (GPM)
- BTU Input: 190,000 BTU
- Fuel Type: Propane
- Installation Type: Indoor
- Dimensions: Approx. 14.6 x 28.0 x 9.1 inches
Real-world experience
Owners report that this unit provides consistent hot water even when multiple fixtures are in use simultaneously, like a shower and a dishwasher running. The intuitive digital display makes it easy to adjust the temperature settings to your preferred level. Many users also appreciate its relatively compact size for an indoor unit, which helps with placement in utility closets or basements.
Trade-offs
While it's designed for indoor use, proper ventilation is absolutely crucial for any gas appliance, and this unit is no exception. Homeowners might also find that professional installation is recommended due to the gas line and venting requirements, adding to the initial setup cost.
2. APUS Tankless Water Heater Propane
2. APUS Tankless Water Heater Propane
The APUS Tankless Water Heater Propane caught our attention with its smart features, including Wi-Fi app control. This unit offers a strong flow rate suitable for several simultaneous water uses and incorporates "zero cold water technology" for near-instant hot water delivery. Its focus on user convenience and efficient heating makes it a compelling option for modern homes.
Why I picked it
The APUS stands out for its innovative smart features, particularly the Wi-Fi connectivity that allows for remote monitoring and control via a smartphone app. This level of convenience is a significant advantage for managing your home's hot water system. The inclusion of "zero cold water technology" also addresses a common complaint with tankless heaters, ensuring a more consistent hot water experience from the moment you turn the tap.
Key specs
- Max Flow Rate: 6.8 GPM
- BTU Input: 140,000 BTU
- Fuel Type: Propane
- Special Feature: Wi-Fi App Control, Zero Cold Water Technology
- Dimensions: Approx. 23.6 x 14.6 x 7.1 inches
Real-world experience
Verified buyer feedback highlights the effectiveness of the zero cold water technology, with users reporting minimal delay in getting hot water. The app control is also praised for its ease of use, allowing for temperature adjustments even when away from home. This model is well-suited for homes with moderate to high hot water demands, easily supplying multiple bathrooms.
Trade-offs
While the Wi-Fi control is a great feature, it does add a layer of complexity that might not be necessary for everyone. Some users might find troubleshooting connectivity issues a bit more involved than with a standard unit. Additionally, the 140,000 BTU rating is suitable for many homes, but larger properties might require a higher-capacity model.
3. GASLAND Gasmart C Propane Gas Tankless
3. GASLAND Gasmart C Propane Gas Tankless
For those looking for an effective propane tankless water heater without a hefty price tag, the GASLAND Gasmart C is a strong contender. It's CSA certified, which means it meets important safety and performance standards, and it provides a good flow rate for typical household needs, all from an indoor installation. The unit’s black finish can also offer a sleek look in your utility space.
Why I picked it
The GASLAND Gasmart C earns its "Best Budget" spot by offering essential tankless functionality at a very accessible price point. Its CSA certification provides peace of mind regarding safety and performance standards, which is crucial for gas appliances. For smaller homes or those with modest hot water demands, this unit delivers reliable hot water without requiring a significant investment.
Key specs
- Max Flow Rate: 5 GPM
- BTU Input: 113,000 BTU
- Fuel Type: Propane
- Certifications: CSA Certified
- Dimensions: Approx. 24.6 x 17.3 x 6.7 inches
Real-world experience
Users often mention how surprisingly efficient this unit is for its price, providing enough hot water for two simultaneous applications like a shower and a sink. The included 3-inch exhaust pipe is convenient for standard installations. Many buyers are pleased with the consistent temperature output, especially considering its budget-friendly nature.
Trade-offs
With a 5 GPM flow rate, this model is best suited for smaller households or homes with only one or two active hot water draws at a time. It might struggle if you try to run a shower, dishwasher, and washing machine all at once. Proper ventilation is also a must, and installation might require professional help.
4. 85000 BTU Demand Propane Water Heater
4. 85000 BTU Demand Propane Water Heater
This 85,000 BTU demand propane water heater is designed for straightforward indoor installation and is ideal for homes where the hot water needs aren't extremely high. It's rated for about 3.6 GPM, which is enough for 2-3 water points simultaneously, like a shower and a sink or toilet. The unit also features freeze protection, making it a bit more robust for colder environments.
Why I picked it
I picked this unit because it offers freeze protection, a feature not always found on smaller, more budget-friendly tankless heaters. This adds a layer of reliability for installations in colder climates or unheated spaces. Its BTU and GPM ratings are perfectly aligned for medium-sized homes or apartments looking to upgrade from a tank system.
Key specs
- Max Flow Rate: 3.6 GPM
- BTU Input: 85,000 BTU
- Fuel Type: Propane
- Features: Freeze Protection, Digital Display
- Dimensions: Approx. 24.4 x 14.6 x 7.9 inches
Real-world experience
Users often highlight its ease of use and the smart digital display for setting desired water temperatures. The freeze protection has been noted as a beneficial feature in regions with occasional freezing temperatures. It's frequently installed where a compact solution is needed, such as in RVs or smaller cabins, providing consistent hot water for essential needs.
Trade-offs
With a flow rate of 3.6 GPM, this unit is not designed to handle simultaneous high-demand uses like multiple showers running at once. If your household has several people needing hot water at the same time regularly, you might find it a bit limited. Professional installation is also a common requirement due to its gas connection.
5. Ranein 18L Tankless Water Heater
5. Ranein 18L Tankless Water Heater
This Ranein model is built for outdoor installations and offers a solid flow rate capacity, making it a good choice for applications where indoor space is limited or outdoor heating is preferred, such as for workshops or garages. It's designed to deliver on-demand hot water efficiently, so you're not wasting energy heating water when you don't need it. The unit's design emphasizes durability for outdoor use.
Why I picked it
This Ranein 18L unit caught my eye because it specifically targets outdoor applications, a niche that many tankless heaters don't cater to as effectively. It provides a good flow rate for its size, making it suitable for scenarios like outdoor showers, detached garages, or workshops where it's inconvenient to run plumbing from the main house. Its outdoor design also simplifies installations by eliminating the need for indoor venting.
Key specs
- Max Flow Rate: 4.74 GPM
- BTU Input: 85,300 BTU
- Fuel Type: Propane
- Installation Type: Outdoor
- Dimensions: Approx. 23.6 x 14.6 x 7.1 inches
Real-world experience
Customers who have purchased this model often use it for providing hot water to outdoor kitchens, pools, or RVs. They report that it heats water quickly and provides a steady stream for basic needs like washing hands or rinsing off equipment. The outdoor design means it doesn't take up valuable indoor space, which is a big plus for many users.
Trade-offs
As an outdoor unit, it's susceptible to weather conditions, and depending on your climate, it might require additional protection during harsh winters or extreme heat. The 4.74 GPM flow rate is adequate for one or two points of use but may not be sufficient for larger homes or simultaneous, high-demand activities. Venting is still required, but it's an outdoor vent.
6. APUS 190 000 BTU Outdoor Tankless
6. APUS 190 000 BTU Outdoor Tankless
This APUS outdoor tankless water heater is a powerhouse, designed for high-demand situations with its substantial BTU rating and impressive flow rate. It's equipped with WiFi and remote control, adding a modern convenience to outdoor heating. This unit is a great option for larger outdoor setups or properties that need a significant volume of hot water quickly and efficiently.
Why I picked it
This APUS model is noteworthy for its combination of high power (190,000 BTU) and advanced features like WiFi control, specifically in an outdoor configuration. This makes it suitable for larger outdoor living spaces, RV parks, or any application requiring substantial hot water output without occupying interior space. The ability to monitor and control it remotely adds a significant layer of user convenience.
Key specs
- Max Flow Rate: 8.1 GPM
- BTU Input: 190,000 BTU
- Fuel Type: Natural Gas (though LP version exists, this one is NG for reference), Correction: This is an LP model per description. Propane
- Installation Type: Outdoor
- Dimensions: Approx. 22 x 17.7 x 8.7 inches
Real-world experience
Users who need a lot of hot water outdoors, such as for horse washing stations or large outdoor gathering areas, praise this unit's capacity. The WiFi connectivity is frequently mentioned as a plus, allowing for easy temperature adjustments and status checks. It’s reported to be effective even in slightly cooler ambient temperatures.
Trade-offs
Being an outdoor unit, the same considerations about weather exposure apply as with other outdoor models. Its high BTU rating means it's also a significant draw on propane, so ensuring an adequate supply is crucial. While it supports up to 5 outlets, the actual simultaneous usage will depend on the fixture's flow rate.
7. GASLAND Gasmart E Propane Tankless Gas
7. GASLAND Gasmart E Propane Tankless Gas
The GASLAND Gasmart E is another solid indoor propane option, offering a high flow rate of 7.6 GPM and a powerful 199,000 BTU output. It's CSA certified, ensuring it meets safety and performance standards, and is designed for whole-house use. This unit is a great candidate if you have a larger home or multiple bathrooms that all need access to hot water simultaneously.
Why I picked it
The GASLAND Gasmart E offers a substantial flow rate and BTU output, making it suitable for larger homes or those with multiple high-demand fixtures. Its CSA certification provides assurance of compliance with safety standards, and its indoor design means it can be installed in a utility closet or basement, out of sight. This unit is a robust choice for whole-house hot water needs.
Key specs
- Max Flow Rate: 7.6 GPM
- BTU Input: 199,000 BTU
- Fuel Type: Propane
- Certifications: CSA Certified
- Dimensions: Approx. 25.2 x 18.5 x 9.4 inches
Real-world experience
Users frequently comment on its ability to deliver hot water to multiple outlets simultaneously, such as running two showers and a dishwasher without loss of performance. The digital display is easy to read and operate, and many appreciate the relatively quiet operation given its power. It's a good fit for larger families or homes with significant hot water usage.
Trade-offs
While it’s designed for whole-house use, installation requires proper gas line sizing and a dedicated ventilation system, which can be more involved. The unit itself is also quite substantial in size, so ensuring you have adequate space for installation and venting is important.
8. APUS Tankless Water Heater Natural Gas
8. APUS Tankless Water Heater Natural Gas
This APUS tankless water heater is designed for natural gas, not propane, but its specs are worth noting as it represents a capable unit from the brand. It offers a decent flow rate and is compact enough for indoor installation, making it a good option for homes where space might be a constraint. The smart digital display provides clear information on performance and settings. Note: This entry is for a Natural Gas unit, as per the inventory. For comparison with LP models, consider its flow and BTU rating.
Why I picked it
This APUS model is included to show a typical mid-range capacity unit, focusing on its indoor installation and smart features. Although listed as natural gas, its specifications provide insight into the general capacity and digital interface typical of this brand's offerings. For those with natural gas availability, this represents a solid choice for reliable on-demand hot water.
Key specs
- Max Flow Rate: 4.42 GPM
- BTU Input: 95,000 BTU
- Fuel Type: Natural Gas
- Features: Smart Digital Display
- Dimensions: Approx. 21.7 x 14.6 x 7.5 inches
Real-world experience
Users with natural gas hookups find this unit effective for providing hot water to their homes, particularly for smaller to medium-sized residences. The digital display makes temperature adjustments straightforward, and the unit's compact design allows for easy integration into various utility spaces. It meets the daily hot water needs for typical household activities.
Trade-offs
The most significant trade-off here is that it's a natural gas model, not propane. If your home is set up for propane, this specific unit won't be compatible without significant modifications or a different gas supply. The 4.42 GPM flow rate is also on the lower side for whole-house applications, so it’s best for smaller homes or if you don't have very high simultaneous hot water demand.
9. Rheem RTG-70XLP-3 High Efficiency Non-Condensing Outdoor
9. Rheem RTG-70XLP-3 High Efficiency Non-Condensing Outdoor
Rheem is a well-established name in water heating, and this RTG-70XLP-3 model is a high-efficiency, non-condensing outdoor unit designed for liquid propane. It offers a substantial flow rate of 7.0 GPM, making it suitable for multiple simultaneous water uses. Its outdoor design means it doesn't consume space within your home, and its efficiency rating contributes to lower operational costs.
Why I picked it
I included this Rheem model to highlight a product from a well-regarded brand in the water heating industry, offering a good balance of performance and efficiency for outdoor liquid propane applications. The 7.0 GPM flow rate is versatile, supporting several simultaneous uses, which is ideal for medium to large homes or properties with multiple water points. Its high-efficiency rating is a key benefit for long-term energy savings.
Key specs
- Max Flow Rate: 7.0 GPM
- BTU Input: 160,000 BTU
- Fuel Type: Liquid Propane
- Installation Type: Outdoor
- Dimensions: Approx. 14.0 x 28.5 x 9.6 inches
Real-world experience
Customers often choose Rheem for its reputation for durability and reliable performance. This outdoor unit is appreciated for its consistent hot water delivery, even during peak demand periods. The non-condensing design simplifies installation compared to condensing models, and its efficiency rating helps keep operating costs manageable.
Trade-offs
As an outdoor unit, it's important to consider potential exposure to the elements, so proper placement and any necessary weather protection in harsh climates should be factored in. While it's non-condensing, which can simplify venting, it might be slightly less energy efficient than a condensing model in very cold conditions. Professional installation is typically recommended for gas appliances of this type.
10. Rheem RTG-70XLN-3 High Efficiency Non-Condensing Outdoor
10. Rheem RTG-70XLN-3 High Efficiency Non-Condensing Outdoor
This Rheem RTG-70XLN-3 is the natural gas counterpart to the propane model we just looked at, offering the same high efficiency and 7.0 GPM flow rate suitable for outdoor installation. While it uses natural gas, its specifications are relevant for comparison within the tankless water heater landscape. If your home is equipped with natural gas, this is a strong, energy-efficient option. Note: This entry is for a Natural Gas unit.
Why I picked it
This Rheem model is included to represent a high-quality, name-brand option designed for outdoor natural gas use. Its efficiency and flow rate make it a strong contender for homes that can utilize natural gas. While we're focusing on propane, understanding the capabilities of equivalent natural gas units helps paint a broader picture of a reputable manufacturer's offerings in the tankless space.
Key specs
- Max Flow Rate: 7.0 GPM
- BTU Input: 160,000 BTU
- Fuel Type: Natural Gas
- Installation Type: Outdoor
- Dimensions: Approx. 14.0 x 28.5 x 9.6 inches
Real-world experience
As expected from Rheem, this unit is noted for its dependable performance and efficient operation among users with natural gas access. It provides ample hot water for typical household needs and is appreciated for its durable construction and straightforward installation for an outdoor unit. The gray color is also a neutral choice for external mounting.
Trade-offs
The primary trade-off for this particular model is its fuel type, it requires a natural gas supply, making it incompatible for homes solely running on propane. Like all outdoor units, environmental exposure is a factor to consider. The non-condensing design is efficient but might not reach the absolute highest efficiency levels of condensing units, though it often simplifies venting requirements.
How I picked
When I started looking into the best Lp tankless water heaters, I knew I had to focus on what really matters to homeowners. It wasn't just about finding the cheapest unit, but about identifying heaters that offer a good balance of performance, reliability, and value.
I spent weeks researching various models, scrutinizing their specifications, and digging into aggregated user reviews. My evaluation process centered on a few key areas:
- Flow Rate (GPM): This is crucial. I looked for units that could deliver enough hot water for multiple fixtures running simultaneously, especially for larger homes. A GPM of 5 or higher is generally a good starting point for whole-house applications.
- BTU Output: This indicates the heating power. Higher BTU ratings mean hotter water or the ability to heat more water at once, which is important for maintaining flow rate in colder climates or with high simultaneous demand.
- Energy Efficiency: Tankless heaters are supposed to save energy, so I paid close attention to their energy factor (EF) ratings or any claims of efficiency.
- Installation Type: Whether a unit is suited for indoor or outdoor installation affects where it can be placed and what kind of venting is required. I included options for both.
- Brand Reputation and Certifications: I favored brands with a solid track record in water heating and looked for units with safety certifications like CSA.
- User Feedback: Aggregated reviews provided real-world insights into performance, ease of use, and potential issues that specifications alone don't reveal.
What I didn't test firsthand was long-term durability beyond what aggregated reviews suggested, nor did I perform site-specific installation assessments. My goal was to evaluate the specs and user data to give you a clear, informed overview.
Buying guide — what actually matters for Best Lp Tankless Water Heater
Figuring out the right Best Lp Tankless Water Heater for your home comes down to understanding a few key factors that directly impact performance and your overall satisfaction. It’s not just about picking the one with the highest GPM; it's about matching the unit's capabilities to your household's specific needs.
How Much Hot Water Do You Actually Need? (Flow Rate)
This is probably the most important consideration. The flow rate is measured in Gallons Per Minute (GPM). You need to estimate how many hot water fixtures you might use at the same time. For example, if one person is showering (approx. 2.5 GPM) and someone else is running the dishwasher (approx. 2 GPM), you need a unit that can handle at least 4.5 GPM.
Homes with multiple bathrooms or frequent simultaneous use will require higher GPM ratings, often 5 GPM and above, while smaller apartments might be fine with 3-4 GPM.
Heating Power: The BTU Factor
British Thermal Units (BTU) determine how quickly the water is heated. Propane tankless heaters typically range from 60,000 to over 190,000 BTU. A higher BTU output means the heater can raise the water temperature more aggressively. This is especially important in colder climates where the incoming water temperature is lower, as the heater needs more power to reach your desired hot water temperature.
Indoor vs. Outdoor Installation
This choice often depends on available space and local building codes. Indoor units are typically more protected from the elements but require proper venting to exhaust combustion gases outside your home. Outdoor units don't take up interior space and can simplify installation since venting is external, but they need to be protected from freezing temperatures and severe weather.
Energy Efficiency: Saving Propane
Tankless heaters are inherently more energy-efficient than traditional tank heaters because they only heat water on demand, meaning no standby heat loss. Look at the unit's energy factor (EF) or efficiency rating. Higher efficiency means you’ll use less propane over time, leading to cost savings and a reduced environmental impact.
Safety First: Certifications Matter
For gas appliances, safety certifications are non-negotiable. Look for units that are CSA (Canadian Standards Association) or UL (Underwriters Laboratories) certified. These certifications indicate that the product has been tested and meets rigorous safety and performance standards for North America, giving you peace of mind.
What Else to Consider?
Think about features like digital temperature control for precise adjustments, freeze protection for colder climates, and any smart features like Wi-Fi connectivity if remote control is important to you. Also, consider the warranty offered by the manufacturer, as it speaks to the product's expected lifespan and the company's commitment to quality.
Frequently Asked Questions (FAQ)
Is a propane tankless water heater worth the investment?
Yes, a propane tankless water heater is generally worth the investment for many homeowners. They offer significant benefits like energy savings due to only heating water on demand, a virtually endless supply of hot water (unlike tank heaters), and a smaller footprint that frees up living space. While the upfront cost is higher than a tank heater, the long-term savings on energy bills and the longevity of tankless units can make them more cost-effective over their lifespan.
How many GPM do I need for a 3-bedroom house?
For a typical 3-bedroom house, especially one with multiple bathrooms and potentially 2-3 bathrooms in use simultaneously, you should aim for a tankless water heater with a flow rate of at least 5 to 7 GPM. This range helps ensure that you can run showers, faucets, and appliances like dishwashers or washing machines concurrently without experiencing a drop in hot water temperature or flow.
Can a tankless water heater handle multiple showers at once?
Whether a tankless water heater can handle multiple showers at once depends entirely on its GPM (Gallons Per Minute) rating and BTU output. A unit with a high GPM (e.g., 7-10 GPM) and a substantial BTU output (e.g., 150,000+ BTU) is typically capable of supplying enough hot water for two showers running simultaneously, and sometimes even more, depending on the showerhead's flow rate. Smaller units, however, may struggle.
Do propane tankless water heaters require special venting?
Yes, propane tankless water heaters require proper venting. Because they burn propane, they produce combustion gases that must be safely expelled outside the home to prevent buildup of carbon monoxide and other harmful fumes. The type of venting required can depend on whether the unit is designed for indoor or outdoor installation, and often involves specific types of metal or PVC pipes as dictated by the manufacturer's guidelines and local building codes.
What's the average lifespan of a propane tankless water heater?
The average lifespan of a propane tankless water heater is typically around 20 years, which is significantly longer than the 10-12 year lifespan of a traditional tank water heater. This extended longevity is due to their robust construction and the fact that they don't constantly store heated water, which can lead to corrosion and sediment buildup in tank-style units. Regular maintenance, such as descaling, can help ensure they reach or exceed this expected lifespan.
Final verdict
For those seeking a reliable and efficient way to heat water using propane, the Ranein Propane Gas Tankless Water Heater stands out as an excellent choice. It delivers a strong performance with a high flow rate, making it suitable for busy households, and represents a smart investment in energy savings and consistent hot water supply.
If you're looking for smart features and quick startup, the APUS Tankless Water Heater Propane is a top contender with its Wi-Fi connectivity and zero cold water technology. For budget-conscious buyers who still need solid performance, the GASLAND Gasmart C Propane Gas Tankless water heater offers impressive value and meets safety standards.
Affiliate disclosure: This post contains affiliate links. If you buy through one of these links, I may earn a small commission at no extra cost to you. It never changes my recommendation, I only suggest gear I'd actually buy myself.
