Calculate heat strip size by finding voltage, current, or BTU/hr heat output from any two values, with kW, BTU/hr, and ton conversions.

undefined

Electrical solves assume DC or single-phase resistive heat at power factor 1. This is heat-output arithmetic, not a building heat-load, breaker or wire-sizing recommendation.

Heat Strip Size Formula

The following example outlines how to calculate ideal heat-strip output.

HSS = V × I × 3.412141633

Variables:

  • HSS is the ideal heat output rate (BTU/h) for a DC or single-phase resistive load at power factor 1.
  • V is the system voltage (volts) 
  • A is the system current (amps) 

Multiply voltage by current to obtain watts, then multiply by approximately 3.412141633 to obtain BTU/h. This estimates heat output, not required building capacity or electrical circuit sizing.

How to Calculate Heat Strip Size?

The following steps outline how to calculate the Heat Strip Size.

  1. First, determine the system voltage (volts). 
  2. Next, determine the system current (amps). 
  3. Next, gather the formula from above = HSS = V * I * 3.412141633.
  4. Finally, calculate the Heat Strip Size.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

system voltage (volts) = 10

system current (amps) = 40

HSS = V * I * 3.412141633 = ?