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

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).