65 Gallon Senville Water Heater – SENWH-HP65

📊 Key specs (real-world important ones)

• Tank size: 65 gallons (61 gal nominal)
• First-hour rating: 84 gallons
• Efficiency (UEF): 3.75
• Heat pump operating range: ~37°F to 109°F ambient
• Backup elements: dual 4500W electric elements
• Noise level: ~49.5 dBA (quiet, fridge-like)
• Tank dimensions: ~66.4″ height × 24.25″ diameter
• Weight: ~243 lb

⚙️ How it works (simple explanation)

This unit has two heating systems:

1. Heat pump mode (primary)

• Pulls heat from surrounding air
• Very efficient (saves energy)
• Slower recovery time

2. Electric resistance backup

• Turns on when demand is high
• Fast heating, but uses more electricity