A.O. Smith Signature 100 30-Gallon Tall 6-year Limited 35500-BTU Natural Gas/Liquid Propane Water Heate - Item #1325042 | Model #G6-MH3030NVRr
A. O. Smith's Signature 100 Series Manufactured Housing 30-Gallon Tall Low NOx Atmospheric Vent Natural Gas Water Heater is designed to provide efficient and reliable hot water for households with 1 to 2 people when sized appropriately. This Manufactured Home Signature series model is Housing and Urban Development (HUD) approved and is designed to provide maximum hot water output for mobile home and manufactured housing applications. With an environmentally friendly 35,000 BTU Low NOx gas burner, this model delivers 63 gallons of hot water in the first hour. It features an electronic gas valve that provides precise temperature control for optimum hot water delivery without the need for an external power source. For your convenience, the gas valve also includes an LED status indicator for diagnostics reporting and a push button ignition to simplify the startup process. A. O. Smith’s 30-gallon model is designed with your safety in mind. With a built-in safety system, this model reduces the risk of accidental flammable vapor ignitions. A factory-installed temperature and pressure relief valve and tamper-proof drain valve also ensures safe operation. This model is built to last. It features a protective anode rod and a ceramic fused tank shield designed to reduce corrosion and provide ultimate tank protection. It also features a self-cleaning dip tube designed to reduce sediment build-up and extend the overall life of the water heater. This added protection comes with a 6-year limited warranty to give you additional peace of mind. Not sure if this is the right water heater for you? Use our product selector tool to see if this model is the right fit for your hot water needs.
Features
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Ideal hot water delivery for HUD approved households with 1-2 people when sized appropriately
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Environmentally friendly 35,500 BTU Low NOx gas burner, convertible from natural gas to liquid propane
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HUD approved for mobile home and manufactured housing applications
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Self-diagnostic electronic gas control incorporates an LED status indicator that monitors and reports on system operational status
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Built-in safety system reduces the risk of accidental flammable vapor ignitions
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Tall and slim 61.5-in H x 18-in diameter profile is designed for easier installation
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Protective anode rod and fused ceramic tank shield provide superior tank protection and extend water heater life
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High-altitude certified from 0 ft to 10,100 ft
What our Experts Think
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Smart convertible fuel flexibility: Designed with a 35,500 BTU Low NOx burner and a convertible gas control that supports both natural gas and liquid propane, giving versatility for different home fuel sources.
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Ideal for compact residential or mobile homes: This 30‑gallon tall water heater is well‑suited for 1–2 people or smaller households, including HUD‑approved mobile home installations when sized appropriately.
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Reliable electronic control: Equipped with a self‑diagnostic electronic gas valve with LED status indicator and push‑button ignition for intuitive operation and easier troubleshooting.
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Safety and compliance built in: Designed with a built‑in safety system to reduce accidental flammable vapor ignition, a factory‑installed temperature & pressure relief valve, and a tamper‑proof drain valve for safer, code‑compliant use.
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Durable construction: Tank Guard® protection, a protective anode rod, and a fused ceramic tank shield enhance corrosion resistance and extend the life of the heater.
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Slim tall profile: The tall, narrow design (≈61.5 in high × 18 in diameter) fits easily in utility rooms or closets where floor space is limited.
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High altitude capable: Certified for installations from 0 ft up to ~10,100 ft, allowing versatility across varied geographic locations.
Q&A
Q: What household size is this water heater best for?
A: Ideal for households of 1–2 people, providing reliable hot water for showers, sinks, and small daily use.
Q: What type of fuel does it use?
A: Compatible with natural gas or liquid propane, giving flexibility based on your home’s fuel source.
Q: How powerful is the heater?
A: Features a 35,500-BTU burner, providing fast recovery and consistent hot water.
Q: What are the dimensions of this tall water heater?
A: Designed as a tall, slim profile, suitable for closets, utility rooms, or tight spaces.
Q: Does it include safety features?
A: Yes. Includes a temperature and pressure relief valve and other standard protections for safe operation.
Q: Is it energy efficient?
A: Yes. Engineered to provide efficient heating while minimizing gas or propane usage.
Q: How is the tank protected from corrosion?
A: Equipped with a protective anode rod and premium tank materials to extend lifespan.
Q: What are the installation requirements?
A: Requires natural gas or liquid propane connection, proper venting, and indoor residential installation
Maintenance Tips
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Flush the tank annually: Drain and flush every 6–12 months to remove sediment that can reduce heating efficiency and damage the tank.
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Inspect the anode rod: Check the sacrificial anode rod yearly and replace if heavily corroded to prevent internal rust.
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Check gas and vent connections: Ensure gas lines, fittings, and venting are secure, clear of obstructions, and corrosion-free.
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Test the T&P relief valve: Operate the temperature & pressure relief valve yearly to verify proper function.
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Monitor burner operation: Watch for irregular ignition or flame color changes, indicating possible venting or gas issues.
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Inspect for leaks: Regularly check water connections, fittings, and tank base for moisture, rust, or leaks.
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Maintain a clean, ventilated space: Keep the surrounding area dry, unobstructed, and ventilated for safety and maintenance access.
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