HVAC Heat Load Calculator vs Heat Exchanger 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.
HVAC Heat Load Calculator
Estimates the heating or cooling load for a room or building in BTU/hr based on floor area, ceiling height, insulation quality, temperature difference, and window area. Use it to size furnaces, air conditioners, and heat pumps.
- Answers
- Total Heat Load (BTU/hr)
- Inputs
- Floor Area, Ceiling Height, Insulation Level, Temperature Difference, Window Area
Heat Exchanger Calculator
Determine the Log Mean Temperature Difference (LMTD) and required heat transfer surface area for shell-and-tube heat exchangers. Essential for engineers designing or auditing industrial heating and cooling systems.
- Answers
- Heat Flux (W/m²)
- Inputs
- Hot Fluid Inlet Temperature, Hot Fluid Outlet Temperature, Cold Fluid Inlet Temperature, Cold Fluid Outlet Temperature
At a glance
| HVAC Heat Load Calculator | Heat Exchanger Calculator | |
|---|---|---|
| Category | Engineering | Mechanical |
| Answers | Total Heat Load | Heat Flux |
| Inputs | 5 | 4 |
| Result unit | BTU/hr | W/m² |
When to use each
Estimates the heating or cooling load for a room or building in BTU/hr based on floor area, ceiling height, insulation quality, temperature difference, and window area. Use it to size furnaces, air conditioners, and heat pumps.
Determine the Log Mean Temperature Difference (LMTD) and required heat transfer surface area for shell-and-tube heat exchangers. Essential for engineers designing or auditing industrial heating and cooling systems.