Water Heater Size Calculator

Major Appliances:

Results

Recommended Capacity:

  • Tank Size: 0 gallons
  • BTU Rating: 0 BTU/hr
  • Recovery Rate: 0 GPH

Usage Analysis:

  • Peak Hour Demand: 0 gallons
  • Daily Usage: 0 gallons
  • First Hour Rating: 0 gallons

Energy Efficiency:

  • Energy Factor: 0
  • Annual Cost: $0
  • Recommendations: Standard

Water Heater Sizing Guide

Key factors in selecting the right water heater size.

  • Peak Hour Demand Maximum hot water needed in one hour.
  • First Hour Rating Amount of hot water available per hour.
  • Recovery Rate How quickly water is heated.
  • Energy Factor Overall energy efficiency.

Installation Considerations

Location

Central to points of use.

Ventilation

Proper airflow required.

Maintenance

Annual service recommended.

Insulation

Reduces heat loss.