Best Lp Gas Tankless Water Heater Indoor in 2025
Updated on July 2025
#1
Recommended
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- Compact design occupies less space than traditional tank water heaters while delivering high performance
- Provides instant and continuous hot water flow, making it suitable for busy households
- Allows precise temperature control within 1°F to accommodate seasonal changes
- Simple installation process with standard fittings and minimal space requirements
- Certified for quality and comes with a 2-year warranty for the unit and 5-year warranty for the heat exchanger
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- Compact design occupies less space than traditional tank water heaters while delivering high performance
- Provides instant and continuous hot water flow, making it suitable for busy households
- Allows precise temperature control within 1°F to accommodate seasonal changes
- Simple installation process with standard fittings and minimal space requirements
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#2
Value for Money
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- Delivers 2.64 GPM of instant hot water on demand, suitable for small homes, cabins, or apartments, eliminating the need for preheating.
- Features multiple safety protections including flame-out, anti-freezing, over-heating, and air flow pressure switch to ensure safe operation.
- Easy installation with standard 1/2" NPT water fitting and gas inlet; requires a gas regulator and connector adapter to connect to propane tank.
- Compact design saves space compared to traditional tanks; includes a digital temperature display and eco settings for energy efficiency.
- Provides responsive customer support available 24/7 through live chat, phone, and online helpdesk.
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- Delivers 2.64 GPM of instant hot water on demand, suitable for small homes, cabins, or apartments, eliminating the need for preheating.
- Features multiple safety protections including flame-out, anti-freezing, over-heating, and air flow pressure switch to ensure safe operation.
- Easy installation with standard 1/2" NPT water fitting and gas inlet; requires a gas regulator and connector adapter to connect to propane tank.
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#3
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- Heating capacity of 80,000 BTU with a hot water flow rate of 3.6 GPM, suitable for multiple outlets in a household.
- Instant hot water available without a wait time, eliminating the need for preheating.
- Offers 4 convenient temperature modes: Dish (100℉), Fruit (95℉), Elderly (104℉), and Infant (107℉).
- Includes an exhaust pipe in the kit, featuring an oxygen-free copper water tank to minimize heat loss and reduce energy consumption.
- Installation should comply with local regulations and be performed by licensed professionals; not recommended for elevations above 2,000 feet.
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- Heating capacity of 80,000 BTU with a hot water flow rate of 3.6 GPM, suitable for multiple outlets in a household.
- Instant hot water available without a wait time, eliminating the need for preheating.
- Offers 4 convenient temperature modes: Dish (100℉), Fruit (95℉), Elderly (104℉), and Infant (107℉).
- Includes an exhaust pipe in the kit, featuring an oxygen-free copper water tank to minimize heat loss and reduce energy consumption.
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#4
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- Provides unlimited hot water on demand, eliminating the wait time associated with traditional heaters.
- Energy-efficient design with a UEF of 0.8, significantly lowering energy bills and reducing greenhouse gas emissions compared to standard tank heaters.
- Compact design allows for installation in tight spaces, optimizing home layout without sacrificing hot water access.
- Long lifespan and fewer components than traditional heaters, reducing maintenance needs and potential for leaks.
- Comprehensive warranty and accessible customer support based in the U.S.
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- Provides unlimited hot water on demand, eliminating the wait time associated with traditional heaters.
- Energy-efficient design with a UEF of 0.8, significantly lowering energy bills and reducing greenhouse gas emissions compared to standard tank heaters.
- Compact design allows for installation in tight spaces, optimizing home layout without sacrificing hot water access.
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#5
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- Gas-powered tankless water heater supports 4 GPM and activates on demand, eliminating the need for a pilot light to save energy.
- Modern black tempered glass design with user-friendly LED display controls.
- Equipped with automatic temperature controls, energy-saving mode, and child lock for safety.
- Safe electronic ignition system connects to a standard 110V outlet via UL-listed cord.
- Compatible with standard 1/2" NPT water fittings and includes horizontal venting for quick installation.
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- Gas-powered tankless water heater supports 4 GPM and activates on demand, eliminating the need for a pilot light to save energy.
- Modern black tempered glass design with user-friendly LED display controls.
- Equipped with automatic temperature controls, energy-saving mode, and child lock for safety.
- Safe electronic ignition system connects to a standard 110V outlet via UL-listed cord.
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#6
26% Off
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- Endless hot water supply
- Compatible with Schedule 40 PVC venting
- High energy efficiency rating
- Low nitrogen oxide emissions
- Includes remote thermostat and 6-foot power cord
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- Endless hot water supply
- Compatible with Schedule 40 PVC venting
- High energy efficiency rating
- Low nitrogen oxide emissions
- Includes remote thermostat and 6-foot power cord
#7
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- Certified for safety with CSA approval and features like overheating and accidental flameout protection.
- Provides continuous hot water using propane and 120 volts, eliminating the need for a water tank.
- Features precise temperature control that maintains water temperature within ±1℉.
- Constructed with an oxygen-free copper water tank for superior thermal conductivity and durability.
- Compact dimensions (H 26.2'' x W 17.1'' x D 7.3'') save space and feature a universal 3/4"NPT interface for easy installation.
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- Certified for safety with CSA approval and features like overheating and accidental flameout protection.
- Provides continuous hot water using propane and 120 volts, eliminating the need for a water tank.
- Features precise temperature control that maintains water temperature within ±1℉.
- Constructed with an oxygen-free copper water tank for superior thermal conductivity and durability.
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#8
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- Tankless propane water heater with steady temperature control and multiple safety features, including flame failure, anti-freezing, and overheating protection.
- Delivers 4.74 gallons of hot water per minute with a maximum temperature increase of 167°F, suitable for simultaneous supply to 2-3 fixtures.
- Constructed from stainless steel and features a copper water tank for reduced heat loss and increased durability; temperature adjustable from 86°F to 167°F with a digital display.
- Standard 1/2" NPT water fitting and gas inlet for easy installation; includes a 2.5" horizontal vent pipe; proper ventilation required for normal operation.
- Space-saving design, ideal for homes, small cabins, and apartments; eliminates the need for an expansion tank, with instructions for winterizing to prevent freezing.
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- Tankless propane water heater with steady temperature control and multiple safety features, including flame failure, anti-freezing, and overheating protection.
- Delivers 4.74 gallons of hot water per minute with a maximum temperature increase of 167°F, suitable for simultaneous supply to 2-3 fixtures.
- Constructed from stainless steel and features a copper water tank for reduced heat loss and increased durability; temperature adjustable from 86°F to 167°F with a digital display.
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#9
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- High flow rate of 4.0 GPM and 90,000 BTU for simultaneous hot water supply in 2-3 locations
- Energy-efficient with copper heat exchanger and micro-flame technology to lower gas consumption and noise
- CSA certified with essential safety features: dry combustion, overheat, anti-freeze, and flame failure protection; backed by 2-year unit and 5-year heat exchanger warranty
- Maintains stable water temperature within ±2°F through rapid heat power adjustments
- Compact size (22.76" H x 14.57" W x 7.0" D) saves over 50% space compared to traditional tank heaters; can be installed in various home corners
- Compatible venting and piping dimensions for easy installation; professional installation recommended for optimal performance
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- High flow rate of 4.0 GPM and 90,000 BTU for simultaneous hot water supply in 2-3 locations
- Energy-efficient with copper heat exchanger and micro-flame technology to lower gas consumption and noise
- CSA certified with essential safety features: dry combustion, overheat, anti-freeze, and flame failure protection; backed by 2-year unit and 5-year heat exchanger warranty
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#10
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- Flow rate between 0.4 and 9 GPM
- Temperature settings range from 100°F to 140°F, with a default of 120°F
- Features electric ignition
- Warranty: 1 year labor, 15 years for heat exchanger, 5 years for parts
- Dimensions: 17-11/16 inches wide
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- Flow rate between 0.4 and 9 GPM
- Temperature settings range from 100°F to 140°F, with a default of 120°F
- Features electric ignition
- Warranty: 1 year labor, 15 years for heat exchanger, 5 years for parts
- Dimensions: 17-11/16 inches wide
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