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Plumbing Calculators
Vacation Mode Calculator

Vacation Mode Calculator

Calculate standby energy saved by putting your tank to sleep while traveling.

Settings

$/kWh

Savings Summary

Daily Standby Cost
$0
Annual Saved Cost
$0
CO2 Footprint Reduced 0 lbs / year

Reducing standby energy while away is an easy way to save on utility bills and lower your household's overall carbon emissions.

Did you know? Keeping a 50-gallon tank of water at 120-140°F while away for weeks is like leaving a burner on your stove glowing constantly!

Vacation Standby Savings Formula

Enabling Vacation Mode lowers the storage tank standby temperature setting to ~50°F. This prevents system freezing while stopping unnecessary heating cycles while the home is vacant.

Formula Used

Total Standby Saved = Idle Daily Standby Energy (kWh/Therms) * Vacation Days * Energy Rate

Reference Quick Chart

Water Heater Tank Size Idle Standby Loss per Day Savings per Week of Vacation
40 Gallon Electric Tank 2.0 - 2.5 kWh / Day $2.50 - $4.00 / Week
50 Gallon Electric Tank 2.5 - 3.2 kWh / Day $3.50 - $5.50 / Week
80 Gallon Electric Tank 4.0 - 5.0 kWh / Day $5.50 - $8.00 / Week
Gas Storage Tank (40-50 Gal) 0.15 - 0.25 Therms / Day $1.50 - $3.00 / Week