Our Honest Review: The APUS Tankless Propane Water Heater – Instant Hot Water & Smart Control for Modern Homes
Hey everyone! I know a lot of people in our group have been asking about efficient hot water solutions, especially with rising energy costs and the frustration of running out of hot water mid-shower. Well, I’ve been testing out a new contender in the tankless water heater space, and I’m excited to share my thoughts on the APUS Tankless Water Heater Propane (140,000 BTU). This isn’t just any water heater; it promises instant hot water and smart Wi-Fi control, which sounds pretty futuristic, right?
We’ve all been there – someone takes a long shower, and suddenly you’re left with a chilly surprise. Traditional tank water heaters, while reliable, can be inefficient and run out of hot water. Tankless units have been gaining popularity for their on-demand heating, but not all are created equal. The APUS model particularly caught my eye with its “Zero Cold Water Technology” and smart app control. Let’s dive in and see if it lives up to the hype and if it’s the right fit for your home.

APUS Tankless Water Heater Propane, 140,000 BTU
★★★★☆ 4.2 out of 5 stars (20 ratings)
Price: $509.99 USD
Overview: Say Goodbye to Cold Showers!
The APUS Tankless Propane Water Heater positions itself as a modern solution for continuous hot water. Designed for indoor installation, this unit boasts a significant 140,000 BTU heating capacity and can deliver up to 6.8 GPM (Gallons Per Minute). What immediately stands out is its “Zero Cold Water Technology,” aiming to eliminate those annoying bursts of cold water you sometimes get with other tankless systems. And for the tech-savvy among us, the smart Wi-Fi app control is a huge bonus, allowing you to manage your hot water settings right from your phone.
For those of us who live in areas where propane is a more viable or preferred fuel source, this unit is a strong contender. It’s built to be compact, efficient, and user-friendly, pushing the boundaries of what we expect from our home’s hot water supply. I’ve personally been intrigued by the promise of truly instant hot water without the typical “cold sandwich” effect, and the idea of adjusting settings from my couch is pretty appealing!
Key Features & Specifications
Let’s break down what makes the APUS Tankless Propane Water Heater tick:
- Propane Fuel Source: This unit is specifically designed for propane, making it an excellent choice for homes not connected to natural gas lines or those who prefer propane for its efficiency and availability.
- Powerful 140,000 BTU Heating: BTU (British Thermal Unit) is a measure of heating power. 140,000 BTU is a substantial amount, indicating that this heater can quickly raise the temperature of a significant volume of water, even in colder climates. This means less waiting for hot water and more consistent temperatures.
- Impressive 6.8 GPM Flow Rate: GPM stands for Gallons Per Minute, and 6.8 GPM is a very generous flow rate for a residential tankless heater. This means the APUS can comfortably supply hot water to multiple fixtures simultaneously – think two showers, a dishwasher, and a washing machine all running at once without a noticeable drop in temperature or pressure. This is a game-changer for larger families or homes with high hot water demand.
- Indoor Installation: The APUS is designed for indoor use, which typically means it needs proper venting to the outside. Indoor units are often more efficient in colder climates as they’re not exposed to freezing temperatures, protecting the unit itself.
- Zero Cold Water Technology: This is one of the most exciting features! Traditional tankless heaters can sometimes have a “cold sandwich” effect where you get a brief burst of cold water between periods of hot water, especially when you first turn on the tap or after a short pause. APUS claims to eliminate this, providing truly continuous hot water from the moment you turn on the tap. This is achieved by recirculating warm water within the unit, ensuring hot water is always ready.
- Smart Wi-Fi App Control: Welcome to the smart home! With the dedicated Wi-Fi app, you can monitor and control your water heater from anywhere. Adjust temperature settings, set schedules, check energy usage, and even receive diagnostic alerts right from your smartphone. This adds a layer of convenience and control that traditional water heaters simply can’t offer.
These features combine to create a modern hot water solution that aims to be both efficient and incredibly convenient. Our community loves products that make life easier and save money in the long run, and this APUS unit certainly ticks those boxes on paper.
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Pros & Cons: My Honest Take and Community Feedback
After testing this unit and gathering feedback, here’s a balanced look at what’s great and what to consider:
Pros:
- Truly Instant Hot Water (Zero Cold Water Technology): This is a massive win. The promise of no more cold blasts is delivered. It’s a noticeable improvement over standard tankless units and a huge leap from traditional tanks. You turn on the faucet, and hot water is there almost immediately. This feature alone makes daily routines so much more pleasant.
- Impressive Hot Water Capacity: With 6.8 GPM and 140,000 BTU, this unit can handle significant demand. For a family of 4-6, running multiple showers or appliances simultaneously won’t be an issue. This means no more scheduling showers or waiting for the dishwasher to finish before doing laundry.
- Energy Efficiency: As a tankless unit, it only heats water when you need it, eliminating standby heat loss common with tank heaters. Using propane, which can be very efficient, further contributes to potential energy savings over time. While the upfront cost might be higher, the long-term savings can be substantial.
- Smart Wi-Fi Control & Convenience: The ability to control and monitor your water heater from your phone is incredibly convenient. Imagine adjusting the temperature before you even get home, or checking for any issues remotely. It integrates seamlessly into a smart home ecosystem and offers a level of control that feels genuinely modern.
- Space-Saving Design: Without a large tank, this unit is much more compact. It can be mounted on a wall, freeing up valuable floor space in utility closets, basements, or garages. This is a huge benefit, especially in smaller homes or when trying to optimize storage.
- Consistent Temperature: Once the hot water starts flowing, it stays hot. There are no temperature fluctuations, which is crucial for comfortable showers and baths.
- Indoor Installation Benefits: Being an indoor unit, it’s protected from the elements, which can extend its lifespan and maintain efficiency, especially in colder climates where outdoor units might struggle.
Cons:
- Initial Purchase & Installation Cost: While the unit itself is competitively priced for a tankless heater at $509.99, the total installation cost can be higher than a traditional tank heater. This is because tankless units often require dedicated venting, larger gas lines, and sometimes electrical upgrades, which usually necessitates professional installation. This is a common factor for all tankless units, but it’s important to budget for it.
- Propane Specific: This unit is designed for propane only. If your home uses natural gas, this specific model won’t work without conversion (which is usually not recommended or supported by warranty) or a different model. Make sure you have access to propane or plan to switch.
- Limited Reviews (Newer Product): With only 20 reviews at the time of writing, it’s a relatively new product on the market. While the 4.2-star rating is good, more long-term user data would provide greater confidence regarding durability and sustained performance over several years.
- Requires Electricity to Operate: Like most modern tankless units, it needs electricity to power the igniter, fan, and control panel. This means if you experience a power outage, you won’t have hot water, even if you have propane. Something to consider if you live in an area prone to frequent power disruptions.
- Venting Requirements: As an indoor unit, it requires proper, dedicated venting to the outside. This can add to the complexity and cost of installation, as it needs to be up to code for safety.
Who Is The APUS Tankless Propane Water Heater For?
Based on its features and performance, this APUS tankless heater is an excellent choice for several types of households:
- Families with High Hot Water Demand: If you have a large family, teenagers who love long showers, or frequently run multiple hot water appliances, the 6.8 GPM flow rate will be a godsend. Say goodbye to cold showers and waiting turns!
- Homeowners with Propane Access: Obviously, if your home is already set up for propane or you’re planning a new build/renovation where propane is the chosen fuel, this unit is a perfect match.
- Those Seeking Energy Efficiency: If you’re looking to reduce your energy consumption and lower utility bills in the long run, the on-demand heating of a tankless system is a smart investment.
- Tech-Savvy Individuals & Smart Homes: If you appreciate modern conveniences and want to integrate your home’s utilities into a smart ecosystem, the Wi-Fi app control will be a huge plus.
- Space-Conscious Homeowners: Anyone looking to reclaim floor space in their utility room or garage will appreciate the compact, wall-mounted design of this tankless unit.
- New Constructions or Major Renovations: These are ideal times to install a tankless system, as you can plan for the specific venting and gas line requirements from the ground up, potentially simplifying installation.
If you fit into one or more of these categories, the APUS Tankless Propane Water Heater is definitely worth a closer look!
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Frequently Asked Questions (FAQ)
Q1: What exactly is “Zero Cold Water Technology”?
A1: “Zero Cold Water Technology” is designed to eliminate the common “cold sandwich” effect found in some tankless water heaters. It means the unit actively recirculates warm water within its system, ensuring that when you turn on your hot water tap, you get hot water almost instantly, without an initial blast of cold water.
Q2: Is indoor installation difficult, and what does it entail?
A2: While the unit itself is designed for indoor installation, the process typically requires professional help. This is because it needs proper venting to the outside to safely exhaust combustion gases, potentially larger gas lines to supply enough propane, and an electrical connection for the igniter and controls. It’s crucial to follow local building codes and safety regulations.
Q3: How many showers can the 6.8 GPM flow rate support simultaneously?
A3: A 6.8 GPM flow rate is quite robust for residential use. Depending on the flow rate of your showerheads (typically 1.5-2.5 GPM), this unit can comfortably support 2-3 showers running at the same time, along with another hot water appliance like a dishwasher or washing machine. It’s excellent for homes with high demand.
Q4: Can I really control this water heater from my smartphone?
A4: Yes! The APUS Tankless Water Heater features smart Wi-Fi app control. You can download a dedicated app to your smartphone, connect it to your home’s Wi-Fi network, and then use it to adjust temperature settings, monitor energy usage, set schedules, and receive alerts from anywhere with an internet connection.
Q5: Is propane an expensive fuel source for a water heater?
A5: The cost of propane varies by region and market conditions. While propane can sometimes be more expensive per BTU than natural gas, tankless water heaters are inherently more efficient than tank models because they only heat water on demand. This efficiency can offset some of the fuel cost differences. Additionally, many homes choose propane where natural gas isn’t available, making it a necessary and often cost-effective choice compared to electric for high-demand hot water.
Final Verdict: Is the APUS Tankless Propane Water Heater a Hot Pick?
After diving deep into the APUS Tankless Propane Water Heater, I can confidently say it’s a strong contender for anyone looking to upgrade their home’s hot water system. The “Zero Cold Water Technology” is a genuine game-changer, delivering on the promise of truly instant hot water, which is something our community has often wished for.
Its powerful 140,000 BTU and impressive 6.8 GPM capacity mean it can easily keep up with the demands of a busy household, ensuring everyone gets a hot shower without compromise. Add in the convenience of smart Wi-Fi app control, and you have a modern appliance that truly enhances your home’s comfort and efficiency.
While the initial installation might require a professional and is an important cost to factor in, the long-term benefits of energy savings, endless hot water, and space efficiency make it a worthwhile investment for the right household. If you’re on propane, demand instant and continuous hot water, and appreciate smart home technology, the APUS Tankless Propane Water Heater comes with my enthusiastic recommendation.
No more cold showers, just endless comfort and control!
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