A.O. Smith Signature 100 30-Gallon Tall 6-year Limited 35500-BTU Natural Gas/Liquid Propane Water Heate - Item #1325042 | Model #G6-MH3030NVRr

• Ideal hot water delivery for HUD approved households with 1-2 people when sized appropriately

• Environmentally friendly 35,500 BTU Low NOx gas burner, convertible from natural gas to liquid propane

• HUD approved for mobile home and manufactured housing applications

• Self-diagnostic electronic gas control incorporates an LED status indicator that monitors and reports on system operational status

• Built-in safety system reduces the risk of accidental flammable vapor ignitions

• Tall and slim 61.5-in H x 18-in diameter profile is designed for easier installation

• Protective anode rod and fused ceramic tank shield provide superior tank protection and extend water heater life

• High-altitude certified from 0 ft to 10,100 ft
  

What our Experts Think

• 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.

• 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.

• 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.

• 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.

• 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.

• 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.

• 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

• Flush the tank annually: Drain and flush every 6–12 months to remove sediment that can reduce heating efficiency and damage the tank.

• Inspect the anode rod: Check the sacrificial anode rod yearly and replace if heavily corroded to prevent internal rust.

• Check gas and vent connections: Ensure gas lines, fittings, and venting are secure, clear of obstructions, and corrosion-free.

• Test the T&P relief valve: Operate the temperature & pressure relief valve yearly to verify proper function.

• Monitor burner operation: Watch for irregular ignition or flame color changes, indicating possible venting or gas issues.

• Inspect for leaks: Regularly check water connections, fittings, and tank base for moisture, rust, or leaks.

• Maintain a clean, ventilated space: Keep the surrounding area dry, unobstructed, and ventilated for safety and maintenance access.