Ranein Natural Gas Tankless Water Heater, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater (Open Box)

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Buy for $188

Retail Price: $319.17 (+41%)

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Condition

New; Open Box

Features

Ranein 100,000 BTU 4.3 GPM indoor natural gas tankless water heater is a high-performance on-demand hot water solution for medium to large households, designed to deliver endless comfortable hot water while ensuring safety, intelligence and cost-saving convenience. As a professional tankless gas water heater, it adopts intelligent dynamic linkage of gas, water and temperature, maintaining precision temperature control to eliminate sudden hot or cold water, providing a stable experience for the whole family. Equipped with 4 intelligent preset modes, this natural gas tankless water heater meets diverse household needs: 4-season mode automatically adjusts outlet temperature based on inlet water (113°F for inlet <59°F, 109°F for 60-70°F, 104°F for 71-80°F, 100°F for ≥82°F); kitchen mode defaults to 100°F for dishwashing and fruit cleaning; bathtub mode supports 50-800L water volume adjustment with buzzer alert after filling; shower mode maintains stable temp for comfortable bathing. The high-temperature lock function requires long press 3 seconds to unlock, effectively preventing scalds. Built with an oxygen-free copper heat exchanger and enhanced combustion technology, this on demand hot water heater natural gas achieves efficient heat transfer and energy saving. The LED digital display clearly shows real-time water temperature (95°F-155°F adjustable), operating status, water/gas consumption and fault codes; press and hold the function key for 3 seconds to query instantaneous water/gas flow. The temp memory function retains your preferred setting, avoiding repeated adjustments. This natural gas instant hot water heater is equipped with multiple safety protections, including overheat protection, dry burn protection, freeze protection (resists 14°F/-10°C), exhaust pipe blockage protection, 60-minute timing protection and low water pressure startup (minimum 14 PSI). The powerful fan exhaust system actively discharges combustion gases, preventing CO leakage and ensuring safe indoor operation. The compact wall-mounted design saves valuable indoor space, suitable for installation in kitchens, bathrooms and utility rooms. What’s more, it comes with an original vent pipe—no need for separate purchase, helping you save extra costs and installation trouble. Important Notes: This indoor natural gas tankless water heater must be installed by licensed professionals in accordance with local codes and the National Fuel Gas Code (NFGC). It is not recommended for use in areas over 2,000 feet elevation. To prevent freezing damage, drain all water from the unit when the ambient temperature drops below 14°F (-10°C) or if it will not be used for an extended period. Ranein provides a 1-year warranty for the heat exchanger and all other parts, with dedicated customer support available for any questions.

Powerful On-Demand Heating: 100,000 BTU & 4.3 GPM for this tankless water heater gas, supports 3-4 water points simultaneously, delivers endless hot water on demand with no waiting.
4 Intelligent Preset Modes: One-click switch for 4-season/Kitchen/Bathtub/Shower modes; 4-season auto-matches temp, kitchen defaults to 100°F, bathtub supports 50-800L volume adjustment.
Precision Temp Control: Gas-water-temperature intelligent linkage, 95°F-155°F adjustable range, high-temp lock prevents scalding, safe for kids and elders.
Oxygen-Free Copper Heat Exchanger: Enhances heat transfer efficiency, corrosion-resistant and durable; paired with enhanced combustion tech for energy saving.
All-Round Safety & Anti-Freeze Protection: Equipped with dedicated anti-freeze device, resists 14°F/-10°C low temperature to effectively prevent pipe freezing and cracking; plus overheat, dry burn, exhaust blockage and low water pressure startup protection; powerful fan exhaust prevents CO leakage.
Clear LED Display & Temp Memory: LED screen shows real-time water temp, operating status and fault codes; temp memory retains preferred settings, no repeated adjustment needed.
Included Vent Pipe & Installation Note: Comes with original vent pipe (no extra purchase) for the indoor propane tankless water heater. Install by licensed professionals, not for >2,000ft elevation. Recommend draining water completely if temp drops below 14°F/-10°C or unused for long to prevent pipe cracking.

Specs

In the Box:

(1) Ranein BC2152825100001 Tankless Water Heater

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Clearance Plumbing & Fixtures