High Efficiency Water Heater

A High Efficiency Commercial Gas Water Heater

from Reliance™ Pays for Itself!

How To Calculate Payback:

  1. Determine the cost of installing a standard commercial gas water heater.
  2. Determine the cost of installing a commercial high efficiency gas water heater from Reliance.
  3. If the cost to install a commercial high efficiency gas water heater from Reliance is higher than the cost of installing a standard commercial gas water heater, subtract the cost found in Step 2 from the cost found in Step 1.
  4. After determining the gallons of water heated per day and the appropriate temperature rise, use the table below to look up the cost savings per year.
  5. To calculate the payback period in years, divide the cost difference found in Step 3 by the savings per year found in Step 4.
Example: A customer can install a standard 100-gallon commercial gas water heater with 199,000 BTUs operating at 80% thermal efficiency or a 50-gallon high efficiency gas water heater from Reliance with 199,000 BTUs operating at 95% thermal efficiency.
The customer will be heating approximately 500 gallons of water per day using a 100 degree temperature rise. The total installed cost of the water heater is $4,100. The cost of the same installation using a high efficiency gas water heater from Reliance is $4,500.

What is the payback period in years?

1 Year = $4,100

2 Years = $4,500

3 Years = $4,500 - $4,100 = $400

The annual cost savings of heating 500 gallons per day at a 100 degree temperature rise is $361 per year.

Payback Period = $400/$361 = 1.1 years


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