Rinnai vs GASLAND: Tankless Water Heaters Compared by Specs
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When you compare a rinnai vs GASLAND tankless water heater, you are looking at two very different approaches to hot water. Both units use gas to heat water on demand. The main difference lies in scale and application. The Rinnai model is a high-capacity unit designed for whole-home use. The GASLAND unit is a compact, portable heater built for single-point outdoor tasks. Your choice depends entirely on whether you need continuous hot water for a house or just a reliable source for a cabin or RV.
Key differences
| Aspect | Rinnai 11.1 GPM Condensing Dual-Fuel Water Heater | GASLAND 1.58 GPM Outdoor Propane Water Heater |
|---|---|---|
| Flow Rate | 11.1 GPM | 1.58 GPM |
| Fuel Type | Propane or Natural Gas | Propane |
| Installation Location | Indoor/Outdoor | Outdoor |
| Venting Type | Condensing | Not listed |
| Power Source for Ignition | Not listed | Two D-cell batteries |
Which one should you choose?
Choose Rinnai 11.1 GPM Condensing Dual-Fuel Water Heater if
- You need hot water for multiple fixtures simultaneously.
- You want to install the unit indoors or outdoors.
- You have access to natural gas or propane lines.
Choose GASLAND 1.58 GPM Outdoor Propane Water Heater if
- You need a portable unit for camping or RV use.
- You only require hot water for a single outdoor sink or shower.
- You want a unit that runs on standard 20 lb propane tanks.
Verdict: The Rinnai RX199iN is the correct choice for whole-home residential hot water needs. The GASLAND BE158 is better suited for portable, outdoor, or off-grid applications where low flow is sufficient.
Rinnai vs GASLAND Tankless Specs
Flow rate capacity
The Rinnai RX199iN delivers a maximum flow rate of 11.1 GPM. This capacity supports up to seven fixtures running simultaneously. You get consistent hot water for whole-house needs. The GASLAND BE158 provides 1.58 GPM. This output suits a single sink or shower. It produces 6 liters per minute. You cannot run multiple fixtures at once with this unit. The difference in volume is significant. Choose Rinnai for family homes. Choose GASLAND for small cabins or outdoor tasks.
Fuel type options
Rinnai offers dual-fuel flexibility with its Smart Sense gas control system. You can install this unit using either propane or natural gas. This adaptability simplifies installation if your home already has a gas line. GASLAND runs exclusively on propane. It connects to a standard 20 lb liquid propane tank. This makes GASLAND ideal for off-grid locations or areas without natural gas infrastructure. If you need natural gas compatibility, Rinnai is the only choice here.
Installation location
Rinnai is designed for both indoor and outdoor use. Its condensing design and Versa Vent system allow flexible placement. You must use an RX-OVC vent cap for outdoor installation. GASLAND is strictly for outdoor use. It is splash-proof but not waterproof. Prolonged rain exposure damages internal components. You must store it in a dry place during winter. Rinnai offers greater versatility for permanent home installations. GASLAND is better for temporary or outdoor-only setups.
Venting type
Rinnai uses a condensing venting system. This design improves energy efficiency by capturing heat from exhaust gases. It achieves a UEF of .98. Condensing units often require specific venting materials like PVC. GASLAND does not list a venting type in its specifications. It is a direct-vent or atmospheric unit designed for outdoor air. This means it relies on ambient air for combustion. Rinnai’s condensing tech is more complex but more efficient for indoor use.
Warranty coverage
Rinnai provides a limited 15-year warranty on the heat exchanger. Parts and labor are covered for 5 years. You must register the product within 90 days of installation to keep the labor warranty. If you miss the deadline, labor coverage drops to 1 year. GASLAND offers a 1-year warranty against manufacturing defects. It also includes lifetime customer support. Rinnai’s hardware warranty is much longer. GASLAND’s support is broader but shorter in duration.
Dimensions and weight
Rinnai measures 30.1 x 18.5 x 30.1 inches. It weighs 55 pounds. It is compact for its capacity, roughly the size of a small suitcase. GASLAND is much smaller at 17.3 x 6.1 x 11.8 inches. It is lighter and easier to move. Rinnai is a permanent fixture. GASLAND is portable. You can carry GASLAND for camping or RVing. Rinnai requires professional installation and a sturdy mounting location. Size matters for your space constraints.
Which Tankless Water Heater Fits Your Needs
Whole-home users needing high capacity
You need consistent hot water for multiple fixtures. The Rinnai RX199iN delivers 11.1 GPM, supporting up to seven simultaneous uses. Its condensing design offers a high UEF of .98 for efficiency. You can install it indoors or outdoors. This unit handles whole-house demands reliably without running out of heat.
Outdoor or portable use seekers
You need a compact unit for outdoor tasks. The GASLAND BE158 is lightweight and runs on standard propane tanks. It starts with low water pressure of 3.6 PSI. Its small size fits RVs, cabins, or camping trips. You get basic hot water for washing pets or vehicles without complex installation.
Tiny home or cabin residents
Space is limited in your tiny home or cabin. The GASLAND BE158 measures just 17.3 inches in height. It provides 1.58 GPM, which is sufficient for single-fixture use. You avoid the need for professional installation. The unit includes mounting hardware and a shower head for immediate setup and use.
Efficiency-focused homeowners
You prioritize energy efficiency and long-term value. The Rinnai RX199iN features a condensing design with a UEF of .98. This high rating reduces energy waste compared to non-condensing models. You also benefit from a 15-year heat exchanger warranty. The Smart Sense gas control ensures optimal performance for natural gas or propane.
The products compared
Rinnai 11.1 GPM Condensing Dual-Fuel Water Heater
Best for: large households needing high flow and efficiency
- Fuel Type
- Natural Gas or Propane
- Flow Rate
- 11.1 GPM
- BTU
- 199k BTU
- Installation Location
- Indoor/Outdoor
- Venting Type
- Condensing
- Dimensions
- 30.1 × 18.5 × 30.1 inches
View on Amazon: Rinnai 11.1 GPM Condensing Dual-Fuel Water Heater Affiliate link
The Rinnai RX199iN delivers 11.1 GPM of hot water using propane or natural gas. Its condensing design achieves a UEF of .98, making it highly efficient. You can install this unit indoors or outdoors, though outdoor setups require the RX-OVC vent cap. The compact footprint measures 30.1 x 18.5 x 30.1 inches. It supports up to seven fixtures running simultaneously.
Pros
- 11.1 GPM flow rate supports multiple fixtures
- Condensing technology yields a .98 UEF
- Versa Vent allows indoor or outdoor placement
- Smart Sense gas control works with propane or natural gas
Cons
- WiFi Controlr module is sold separately
- Professional installation is strongly recommended
- Labor warranty drops to one year if not registered within 90 days
Good fit if
- You need high flow for a large household
- You want a versatile indoor or outdoor unit
- You prioritize energy efficiency with a .98 UEF
Skip if
- You cannot hire a professional installer
- You want WiFi control included in the box
- You need a unit smaller than 30 inches tall
Verdict: Rinnai RX199iN 11.1 GPM Condensing Heater suits large homes needing high output and efficiency. You should choose this model if you can manage professional installation and want flexible placement options.
GASLAND 1.58 GPM Outdoor Propane Water Heater
Best for: outdoor portable hot water needs
- Fuel Type
- Propane
- Flow Rate
- 1.58 GPM
- BTU
- 41,000 BTU/hr
- Installation Location
- Outdoor
- Certification
- CSA
- Dimensions
- 17.3 x 6.1 x 11.8 in
View on Amazon: GASLAND 1.58 GPM Outdoor Propane Water Heater Affiliate link
The GASLAND BE158 is a portable propane tankless water heater designed for outdoor or off-grid use. It delivers 1.58 GPM with a maximum output of 41,000 BTU/hr. The unit starts with low water pressure at 3.6 PSI and runs on standard 20 lb propane tanks. It features an LED digital display and CSA certification for safety. This model suits RVs, cabins, or camping trips where electricity is unavailable.
Pros
- 1.58 GPM flow rate at 41,000 BTU/hr output
- Starts with low water pressure of 3.6 PSI
- CSA certified for safety in US and Canada
- LED digital display for temperature monitoring
- Runs on standard 20 lb propane tanks
Cons
- Limited to 1.58 GPM flow rate
- Requires outdoor installation only
- Warranty is only one year
Good fit if
- You need hot water for an RV or camping trip
- You have low water pressure in your setup
- You want a portable unit for off-grid living
Skip if
- You need indoor installation for a home
- You require a flow rate above 1.58 GPM
- You want a longer warranty than one year
Verdict: GASLAND BE158 1.58 GPM Propane Heater is a compact, CSA-certified option for outdoor portable hot water needs. It fits users who prioritize portability and low-pressure startup over high flow rates or indoor use.
Specifications side by side
| Spec | Rinnai 11.1 GPM Condensing Dual-Fuel Water Heater | GASLAND 1.58 GPM Outdoor Propane Water Heater |
|---|---|---|
| Fuel Type | Natural Gas or Propane | Propane |
| Flow Rate | 11.1 GPM | 1.58 GPM |
| BTU | 199k BTU | 41,000 BTU/hr |
| Installation Location | Indoor/Outdoor | Outdoor |
| Certification | not stated | CSA |
| Dimensions | not stated | 17.3 x 6.1 x 11.8 in |
| Venting Type | Condensing | not stated |
| Features | not stated | Digital Display, Overheat Protection |
| Weight | 55 pounds | not stated |
| Size | 11.1 GPM | 6L-1.58 GPM |
| Color | Silver | White |
| Model | RX199iN | BE158 |
Frequently asked questions
Can the Rinnai RX199iN be used outdoors?
No. The Rinnai RX199iN is a condensing unit designed for indoor installation. Condensing heaters manage moisture internally, which requires specific venting and clearance. Using it outdoors could damage the unit. You must place it in a protected area like a garage or utility room.
Is the GASLAND BE158 suitable for indoor use?
No. The GASLAND BE158 is built for outdoor portable hot water needs. It lacks the sealed combustion and venting safety features required for indoor spaces. Using it indoors risks carbon monoxide buildup. You should only install this unit outside in a well-ventilated area.
What is the main difference in size between these two heaters?
The Rinnai RX199iN is a large, whole-home unit measuring 30.1 inches in length and 18.5 inches in width. The GASLAND BE158 is compact, measuring only 11.8 inches long and 6.1 inches wide. The Rinnai requires significant space, while the GASLAND fits in tight spots.
Which unit provides higher hot water flow?
The Rinnai RX199iN provides 11.1 GPM, supporting multiple fixtures simultaneously. The GASLAND BE158 delivers 1.58 GPM, suitable for a single outdoor tap. You choose Rinnai for whole-house demand. You choose GASLAND for low-flow, portable applications like gardening or outdoor cleaning.
Do both units use gas as fuel?
Yes. Both heaters use gas to heat water on demand. The Rinnai RX199iN is a dual-fuel model, offering flexibility in fuel source. The GASLAND BE158 uses propane specifically. Both rely on gas combustion to generate hot water without a storage tank.
How heavy are these tankless water heaters?
The Rinnai RX199iN weighs 55 pounds due to its robust construction. The GASLAND BE158 is lighter and designed for portability. Its compact dimensions make it easy to move. You do not need to secure the GASLAND unit permanently if you need to relocate it.