Propane Gas Tankless Water Heater Indoor,3.6 GPM 85,000 BTU,Instant Hot Water,Constant Temperature,Pure Copper Heat Exchanger,3/4″ NPT Connection,On-Demand for 2–3 Fixtures, Apartment & Home Use
$269.00
Price: $269.00
(as of Feb 12, 2026 06:14:08 UTC – Details)
Product description
Heatrova Water Heater
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Add to Cart
Add to Cart
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Customer Reviews
4.7 out of 5 stars 4
4.7 out of 5 stars 4
4.7 out of 5 stars 4
4.7 out of 5 stars 4
Price
$349.00$349.00
$349.00$349.00
$269.00$269.00
$269.00$269.00
Mounting Location
Propane
Natural Gas
Propane
Natural Gas
Installation
Indoor
Indoor
Indoor
Indoor
BTU
102,000 BTU
102,000 BTU
85,000 BTU
85,000 BTU
GPM
Up to 4.3
Up to 4.3
Up to 3.6
Up to 3.6
Input Voltage
120 Volts (AC)
120 Volts (AC)
120 Volts (AC)
120 Volts (AC)
Gas Inlet
NPT3/4″
NPT3/4″
NPT3/4″
NPT3/4″
Water Inlet
NPT3/4″
NPT3/4″
NPT3/4″
NPT3/4″
Water Outlet
NPT3/4″
NPT3/4″
NPT3/4″
NPT3/4″
Flue Pipe Dia
Φ 3″
Φ 3″
Φ 3″
Φ 3″
Water Fixtures Simultaneously
2-4 Fixtures
2-4 Fixtures
2-3 Fixtures
2-3 Fixtures
Weight
27.55 pounds
27.55 pounds
26.55 pounds
26.55 pounds
Is this water heater safe for indoor installation?
Yes. This 13L tankless water heater is designed specifically for indoor use and features multiple built-in safety protections, including flame failure and overheat protection. safety standards when properly installed and vented.
How many fixtures can this 13L unit support at the same time?
The 13L propane tankless water heater delivers up to 3.6 GPM, making it suitable for 2–3 fixtures simultaneously, such as a shower and a sink. Actual performance depends on incoming water temperature and flow demand.
Does this unit use propane, and can it be converted to natural gas?
This model is designed exclusively for propane (LPG). It is not convertible to natural gas. Please make sure your home uses propane before purchasing.
Is there anything I need to prepare separately for installing the water heater?
Installation requires a valve kit with a 150 PSI pressure relief valve.The vent pipe and valve kit are not included with this product and must be purchased separately.
INSTANT HOT WATER FOR SMALL HOMES:This tankless gas water heater delivers up to 3.6 GPM flow rate and 85,000 BTU heating capacity, providing endless hot water on demand for 2–3 fixtures simultaneously, ideal for small houses, cabins, and apartments.
INTELLIGENT CONSTANT TEMPERATURE PLUS:Featuring Intelligent Constant Temperature PLUS technology, the system automatically and steplessly adjusts the air-fuel ratio to maintain stable water temperature within ±1℉, even when another outlet is turned on, reducing temperature fluctuations and scalding risk.
4-STAGE ENERGY-SAVING COMBUSTION TECHNOLOGY:The advanced 4-stage staged combustion system operates with a minimum heat load of just 8,500 BTU, delivering comfortable hot water in summer without mixing cold water and sufficient heating performance in winter, while saving energy year-round.
HIGH-EFFICIENCY PURE COPPER HEAT EXCHANGER:Built with a 100% pure copper heat exchanger, this gas tankless water heater achieves up to 95% thermal efficiency, provides hot water within seconds, reduces heat loss, and ensures reliable, long-lasting performance.The compact 21.3″× 13.7″ × 6.8″wall-mounted design supports standard 3/4″ NPT connections, 3″ vent, and a UL-approved 120V power supply for easy installation.
MULTIPLE SAFETY & ANTI-FREEZE PROTECTIONS, EASY INSTALLATION:Designed for indoor use, this unit includes overheat protection, anti-dry combustion, low water pressure start, anti-scald protection, flame failure protection, dual gas solenoid valves, and automatic anti-freeze protection below 39°F (4°C).
$269.00
