APUS vs Orbek: Tankless Water Heaters Compared by Specs
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This orbek vs APUS tankless water heater comparison focuses on two propane RV units. Both provide on-demand hot water and operate on 12V DC power. They share CSA certification for safety and support high-altitude performance. The main difference lies in their heating capacity and physical size. The APUS model offers higher BTU output and a larger flow rate. The Orbek unit is more compact with a lower BTU rating. You will see how these specs affect your RV shower experience below.
Key differences
| Aspect | APUS 68,000 BTU RV Propane Water Heater | Orbek 60,000 BTU 12V RV Tankless Water Heater |
|---|---|---|
| BTU Output | 68,000 BTU | 60,000 BTU |
| Flow Rate | 3.9 GPM | not listed |
| Dimensions | 14.96 x 14.96 x 14.18 inches | 12.7 x 12.7 x 12.7 inches |
| Weight | 24 pounds | 20.5 pounds |
| Pressure Relief Valve | 203 PSI | 150 PSI (reducing valve) |
| Temperature Range | 95–124°F | 95–123°F |
Which one should you choose?
Choose APUS 68,000 BTU RV Propane Water Heater if
- You need a higher flow rate for longer showers
- Your RV compartment requires a standard 15x15 inch cutout
- You want a higher pressure relief valve rating
Choose Orbek 60,000 BTU 12V RV Tankless Water Heater if
- You have a smaller installation space available
- You prefer a lighter unit for easier handling
- You want a built-in pressure-reducing valve
Verdict: Choose the APUS if you prioritize maximum hot water flow and higher BTU output for larger RVs. Select the Orbek if you need a more compact footprint and a lighter unit for smaller camper setups. Both units provide reliable propane heating for your travels.
APUS vs Orbek RV Specs
Heating capacity
The APUS unit delivers 68,000 BTUs of heating power, while the Orbek model provides 60,000 BTUs. This difference means the APUS can generate more heat energy per hour. For RV users who need rapid heating or want to maintain higher water temperatures during cold weather camping, the extra 8,000 BTUs offer a tangible benefit. The Orbek is still powerful enough for most standard showers and dishwashing tasks, but the APUS has a slight edge in raw thermal output.
Flow rate
APUS specifies a maximum flow rate of 3.9 GPM. The Orbek data does not list a specific GPM figure. In tankless water heaters, a higher flow rate allows you to run multiple fixtures or take longer showers without the water cooling down. Since APUS explicitly states this capacity, it suggests a design optimized for higher volume usage. Orbek focuses on continuous on-demand supply but omits this specific metric. Buyers who prioritize high-volume water usage may prefer the explicitly stated capacity of the APUS model.
Physical dimensions
The Orbek unit is significantly more compact. Its dimensions are 12.7 x 12.7 x 12.7 inches, creating a smaller footprint. The APUS model measures 14.96 x 14.96 x 14.18 inches. This size difference matters for RVs with tight storage compartments or limited installation space. The Orbek fits standard 15x15, 15x18, and 18x18 openings easily. The APUS is designed for standard openings but is physically larger. If space is a primary constraint in your RV layout, the smaller Orbek unit offers a clear advantage for installation flexibility.
Weight
Weight is a consideration for mobile living. The APUS unit weighs 24 pounds. The Orbek unit weighs 20.5 pounds. This 3.5-pound difference is modest but noticeable when handling the unit during installation or maintenance. A lighter unit is easier to maneuver into tight compartments. Both units are relatively lightweight compared to traditional tank heaters. However, for users who value minimal weight in their RV systems, the Orbek provides a slight benefit due to its lighter construction.
Safety features
Both units carry CSA certification, ensuring they meet safety standards. APUS includes a 203 PSI pressure relief valve. Orbek features a built-in 150 PSI pressure-reducing valve. The APUS also highlights intelligent staged combustion and dry-burn protection. Orbek mentions oxygen-free copper heat exchangers and automatic gas shut-off. Both provide flame failure protection and frost protection. The APUS pressure relief valve handles a higher maximum pressure. Orbek includes a pressure-reducing valve to protect against high incoming water pressure. Both are well-equipped for safe RV operation.
Altitude performance
Both heaters are designed for high-altitude use. APUS specifies stable performance up to 9,800 feet. Orbek also confirms smooth operation at 9,800 feet using staged combustion technology. This capability is crucial for RVers who travel to mountainous regions. Both units adjust their combustion to maintain consistent temperatures despite lower oxygen levels at elevation. Since both explicitly support this altitude limit, neither has a distinct advantage in this area. You can rely on either unit for camping in high-elevation destinations without performance concerns.
Which tankless water heater fits your needs
Need maximum flow for long showers
The APUS unit delivers 3.9 GPM of hot water. This higher flow rate supports longer showers and simultaneous use of multiple fixtures. If you prioritize volume and speed, this 68,000 BTU model provides the necessary power to maintain consistent output during extended RV trips.
Want compact size for tight spaces
The Orbek model measures 12.7 inches on each side. Its smaller footprint allows easier installation in tighter compartments or non-standard openings. At 20.5 pounds, it is also lighter than the APUS, making it a practical choice for travelers who value space efficiency and reduced weight.
Prefer included safety pressure valve
The Orbek unit features a built-in 150 PSI pressure-reducing valve. This integrated component simplifies your plumbing setup by removing the need for an additional external purchase. You get essential pressure management directly within the heater, ensuring stable water flow and protecting your RV pipes from high pressure.
Need altitude performance up to 9800 ft
The APUS heater is rated for stable operation at elevations up to 9,800 feet. Its intelligent staged combustion adjusts to incoming water conditions to maintain comfort. If you frequently camp in mountainous regions, this specification ensures reliable hot water delivery without fluctuations caused by thin air.
The products compared
APUS 68,000 BTU RV Propane Water Heater
Best for: RVers needing high-flow propane heating
- Fuel Type
- Propane
- Flow Rate
- 3.9 GPM
- BTU
- 68,000 BTU
- Voltage
- 12V DC
- Certification
- CSA
- Dimensions
- 14.96 x 14.96 x 14.18 inches
View on Amazon: APUS 68,000 BTU RV Propane Water Heater Affiliate link
The APUS RV Tankless Water Heater uses 68,000 BTU of propane power to deliver up to 3.9 GPM of hot water. It runs on 12V DC and fits standard RV compartments. This unit includes a remote control for temperature adjustments and offers freeze protection. It suits travelers who need reliable on-demand hot water for showers and dishes in various weather conditions.
Pros
- 68,000 BTU propane burner for continuous hot water
- High flow rate of 3.9 GPM
- Includes remote control for easy temperature adjustment
- CSA certified with multiple safety protections
- Operates at elevations up to 9,800 ft
Cons
- Heavier build at 24 pounds
- Requires 12V DC power connection
- Limited to propane fuel type
Good fit if
- You need a direct replacement for standard 6, 10, or 12-gallon tank heaters
- You want to adjust water temperature from inside the RV
- You travel to high-altitude campsites regularly
Skip if
- You prefer electric or dual-fuel heating options
- You require a unit under 24 pounds
- You need a water heater for a stationary home
Verdict: APUS RV Propane Water Heater delivers strong 3.9 GPM output and convenient remote control for RV users. It is a solid choice for those replacing standard tank heaters who prioritize high BTU performance and altitude stability.
Orbek 60,000 BTU 12V RV Tankless Water Heater
Best for: RVers needing 12V DC power and altitude support
- Fuel Type
- Propane
- BTU
- 60,000 BTU
- Voltage
- 12V DC
- Temperature Control
- 95°F to 123°F
- Certification
- CSA
- Dimensions
- 12.7 x 12.7 x 12.7 in
View on Amazon: Orbek 60,000 BTU 12V RV Tankless Water Heater Affiliate link
This Orbek unit delivers 60,000 BTU/hr of hot water using propane and 12V DC power. It fits standard RV cutouts and includes a 150 PSI pressure-reducing valve. The smart remote controls temperature from 95°F to 123°F. It operates at high altitudes up to 9,800 feet. CSA certification ensures safety. This compact heater suits RVers needing reliable on-demand hot water without tank maintenance.
Pros
- 60,000 BTU/hr propane burner
- 12V DC power supply
- Smart remote with error codes
- Built-in 150 PSI pressure-reducing valve
- High-altitude mode up to 9,800 feet
Cons
- Lower 60,000 BTU output than the APUS 68,000 BTU model
- No app or Bluetooth connectivity listed
- Door panels sold separately
Good fit if
- You need a 12V DC powered heater for RV use
- You travel to high-altitude destinations
- You want a CSA-certified unit with a remote
Skip if
- You require the highest possible BTU output
- You prefer propane heaters with higher than 60,000 BTU
- You want a unit with built-in smart app control
Verdict: Orbek RV Tankless Propane Water Heater offers a compact, altitude-ready solution for RVers who prioritize 12V DC operation and remote control. It fits well in standard cutouts but provides less heat output than the APUS 68,000 BTU competitor.
Specifications side by side
| Spec | APUS 68,000 BTU RV Propane Water Heater | Orbek 60,000 BTU 12V RV Tankless Water Heater |
|---|---|---|
| Fuel Type | Propane | Propane |
| Flow Rate | 3.9 GPM | not stated |
| BTU | 68,000 BTU | 60,000 BTU |
| Voltage | 12V DC | 12V DC |
| Temperature Control | not stated | 95°F to 123°F |
| Certification | CSA | CSA |
| Dimensions | 14.96 x 14.96 x 14.18 inches | 12.7 x 12.7 x 12.7 in |
| Use | RV | RV |
| Weight | 24 pounds | 20.5 pounds |
| Color | White | Tankless, Silver Water Heater |
| Model | AP-AWH-RV10W-NEW | HRU-RG060-A1 |
Frequently asked questions
Which tankless water heater has a higher BTU output?
The APUS unit provides 68,000 BTUs. The Orbek model offers 60,000 BTUs. This means the APUS generates more heat energy per hour. You get stronger heating performance with the APUS option. This helps maintain consistent water temperatures during use.
Which model is more compact for small RV spaces?
The Orbek heater is slightly more compact. It measures 12.7 inches on each side. The APUS unit is larger at 14.2 inches wide and deep. If you have limited cabinet space, the Orbek fits more easily into standard cutouts.
Which water heater weighs less for easier installation?
The Orbek unit weighs 20.5 pounds. The APUS model weighs 24 pounds. The Orbek is lighter by nearly four pounds. This makes it slightly easier to handle and mount in tight RV compartments or overhead spaces.
Do both heaters support high-altitude performance?
Yes, both units support high-altitude performance. They are both CSA certified for safety. This certification ensures they operate correctly at higher elevations. You do not need to worry about flame adjustment issues when camping in mountainous areas.
What fuel type do these tankless heaters use?
Both heaters use propane as their fuel source. They are designed specifically for RV applications. You connect them to your existing propane supply lines. This allows you to use the same fuel system you already have for cooking or heating.
Which model comes in a white finish?
The APUS heater comes in a white color. The Orbek unit is described as silver. If you prefer a white exterior to match your RV decor, the APUS model is the choice. The Orbek offers a metallic silver look instead.