Consumers increasingly demand fast, reliable hot water with smart connectivity. The following selection highlights propane-powered tankless heaters with WiFi or remote-control capabilities, offering scalable performance for homes of various sizes. Each model supports on-demand hot water, energy-efficient operation, and modern control options to monitor and adjust performance from your phone or smart device.
Summary of selected products:
- Rinnai RX160iN Condensing Smart Sense: 160,000 BTU, up to 9 GPM, indoor/outdoor compatibility, WiFi-ready through ControlR module (not included).
- APUS Tankless Water Heater Propane (140,000 BTU): Instant hot water, zero cold-water wait, built-in booster, WiFi app control.
- APUS 190,000 BTU Outdoor Tankless Water Heater: 8.1 GPM, WiFi & remote control, suitable for multiple outlets.
- MIZUDO Tankless Water Heater Propane: Indoor/outdoor convertible, 120,000 BTU, WiFi & app control, CSA certified.
- Rinnai RXP199iN Condensing Smart Sense: 199,000 BTU, up to 11.1 GPM, indoor/outdoor, WiFi-ready via ControlR (not included).
Rinnai RX160iN Condensing Smart Sense
Rinnai’s RX160iN blends compact design with high output. This model can be installed indoors or outdoors using Versa Vent and can operate on either propane or natural gas via a Smart Sense gas control system. Outdoor installation requires the RX-OVC vent cap. It delivers up to 9 GPM across multiple fixtures and features a modern user interface, Quick Flush for maintenance, and an energy efficiency factor (UEF) of .97. WiFi control is available through the ControlR module (not included).
Key considerations:
- Flexibility: Indoor/outdoor installation with Versa Vent.
- Fuel compatibility: Propane or natural gas.
- Connectivity: WiFi control via ControlR (not included).
APUS Tankless Water Heater Propane, 140,000 BTU
APUS’s 140,000 BTU tankless water heater emphasizes instant hot water and energy efficiency. It features zero cold-water technology for immediate heat, a built-in booster pump to boost flow by up to 130%, and a maximum of 6.8 GPM. The unit supports remote or mobile app control, enabling temperature adjustments and usage monitoring from a connected device.
Key considerations:
- Instant hot water with zero-wait tech for faster comfort.
- Boosted flow: up to 6.8 GPM to support multiple fixtures.
- Smart control: WiFi app compatibility for remote adjustments.
APUS 190,000 BTU Outdoor Tankless Water Heater
This outdoor unit provides high capacity with 8.1 GPM, designed for whole-house hot water needs. It supports 5 outlets and features intelligent temperature control via app or wired controller (95°F–149°F range). The heat exchanger uses 100% oxygen-free copper, delivering enhanced efficiency and durability. WiFi remote control enables convenient adjustments and monitoring.
Key considerations:
- Outdoor-rated with high GPM capacity for multiple fixtures.
- Oxygen-free copper heat exchanger for durability and efficiency.
- WiFi connectivity for remote operation and monitoring.
MIZUDO Tankless Water Heater Propane
MIZUDO offers flexible indoor/outdoor installation with conversion kits to switch usage scenarios. The unit provides 120,000 BTU and aims to maintain stable outlet temperature under multi-fixture use via advanced gas modulation and flow monitoring. It supports remote management via a dedicated app, enabling temperature control and energy monitoring.
Key considerations:
- Indoor/outdoor flexibility with accessory kits.
- WiFi and mobile app control for remote management.
- Precision temperature stability, designed for whole-house performance.
Rinnai V53DeP Propane Tankless Water Heater
Rinnai’s V53DeP outdoor propane tankless heater delivers 5.3 GPM, suitable for compact outdoor spaces. It emphasizes energy-efficient on-demand heating and a compact footprint designed for space-constrained installations. It includes on-demand hot water with improved flow and durability, ideal for smaller homes or secondary units.
Key considerations:
- Compact outdoor design for tight spaces.
- On-demand hot water with energy-efficient operation.
- Suitable for smaller households or secondary installations.
Rinnai RXP199iN Condensing Smart Sense
The Rinnai RXP199iN is a high-capacity condensing tankless model suitable for indoor or outdoor use. It delivers up to 11.1 GPM (up to seven fixtures simultaneously) and 199,000 BTU. The Versa Vent system enables flexible installation, and its Smart Sense control provides an efficient, user-friendly interface. WiFi control through ControlR is available with the appropriate module (not included).
Key considerations:
- Very high GPM for larger homes or busy households.
- Indoor/outdoor installation with Versa Vent.
- WiFi control via ControlR module (not included).
Buying Guide: Key Purchase Considerations For Wifi Propane Tankless Heaters
When evaluating wifi-enabled propane tankless heaters, buyers should balance capacity, installation location, and connectivity. The following perspectives help compare choices:
- Capacity and flow: GPM ratings determine how many fixtures can run simultaneously. Larger homes or multi-bath configurations benefit from 8–11 GPM models, while smaller homes may be comfortable with 5–6 GPM units.
- Fuel flexibility: Propane and natural gas compatibility expands installation options in different regions. Units that support both fuels offer unique value where gas supply varies, but may require dual-fuel compatibility hardware.
- Indoor vs. outdoor installation: Indoor units require venting and clearance considerations; outdoor units demand weather resistance and space for venting. Versa Vent compatibility and vent caps are important for outdoor setups.
- Connectivity and control: WiFi/app control provides remote temperature adjustments, monitoring, and efficiency management. Check compatibility with ControlR or other control platforms, and whether the module is included or sold separately.
- Energy efficiency: Look for high UEF ratings and features like Quick Flush or intelligent gas modulation. Efficient models reduce energy waste and prolong unit life.
- Maintenance and longevity: Features such as quick flush, corrosion-resistant exchangers, and warranty terms affect long-term performance. Regular descaling and professional servicing ensure optimal operation in hard water areas.
- Installation and cost: While initial cost varies, factor in venting requirements, permits, and potential upgrades to house gas lines. Some units offer more straightforward DIY installation, while others require professional installation.
In summary, top options for WiFi-enabled propane tankless heating emphasize high GPM capacity for busy homes, flexible indoor/outdoor installation, and robust app-based control. Rinnai models pair strong performance with Versa Vent support, while APUS and Mizudo provide competitive WiFi features at potentially lower upfront costs. Assess your household size, peak hot-water demand, and whether you prefer indoor convenience or outdoor placement to select the optimal model.