Water Heater Size Calculator vs Hot Water Heater Sizing Calculator
Two calculators for the same neighbourhood of questions. Here is what each measures, what you feed in, and where you'd reach for one over the other.
Water Heater Size Calculator
Estimates the recommended water heater tank capacity in gallons based on household size and hot water usage habits. Use it when purchasing a new water heater or upgrading to match a growing household's demand.
- Answers
- Recommended Capacity (gallons)
- Inputs
- Number of Occupants, Usage Level
Hot Water Heater Sizing Calculator
Find the right storage water heater capacity (in gallons) for your home based on bedrooms, bathrooms, occupants, and usage habits. Use it before buying a new water heater or when upgrading an undersized unit.
- Answers
- Recommended Tank Size (gallons)
- Inputs
- Number of Bedrooms, Number of Bathrooms, Number of Occupants, Hot Water Usage Pattern, Peak Hour Demand Factor
At a glance
| Water Heater Size Calculator | Hot Water Heater Sizing Calculator | |
|---|---|---|
| Category | Plumbing | Water Usage |
| Answers | Recommended Capacity | Recommended Tank Size |
| Inputs | 2 | 5 |
| Result unit | gallons | gallons |
When to use each
Estimates the recommended water heater tank capacity in gallons based on household size and hot water usage habits. Use it when purchasing a new water heater or upgrading to match a growing household's demand.
Find the right storage water heater capacity (in gallons) for your home based on bedrooms, bathrooms, occupants, and usage habits. Use it before buying a new water heater or when upgrading an undersized unit.