VancEpic Natural Gas Tankless Water Heater Indoor - Max 4.3 GPM 100,000 BTU, on Demand Instant Hot Water Heater with LED Display, 3-4 Point Use for Family, Silent operation, Child lock design

AirBoost Preheated Air: Optimizes combustion for the tankless water heater gas with 100,000 BTU & 4.3 GPM, supports 3-4 water points for on demand hot water heater natural gas whole-house supply with stable heating.

±1°F Precision Temp Control: Gas, water and temperature intelligent dynamic linkage for the tankless gas water heater, eliminates hot/cold spikes to keep steady temperature for multi-point and continuous use.

Oxygen-Free Copper Heat Exchanger: Enhances heat transfer efficiency and durability of the natural gas water heater, ensures stable heating for long-term indoor use.

Quiet Operation & Heat Retention: Multi-layer sound insulation cotton for the on demand water heater, reduces noise and locks heat to save energy for home use.

4 Preset Modes + Child Lock: One-click switch for multi-scenario water temperature with anti-scald child lock on the natural gas instant hot water heater, safe for family daily use.

Safe Negative Pressure Exhaust: Brushless DC motor prevents CO leakage for the tankless hot water heater natural gas, with 8-layer safety protections for secure indoor operation.

Protection & Installation Note: Built-in anti-freeze unit for the indoor natural gas tankless water heater resists 14°F (-10°C); open the drain valve to empty the tank after use if temp drops below this to prevent pipe cracking. Must be installed by licensed professionals per local codes—not recommended for areas over 2,000 feet elevation.