Heat power calculator
Thermal energy calculator
Desktop App
Desktop full-featured version.
Free Trial AvailableRegistration
Select a fair price and enable the full service:
- Switch between metric and imperial units in one click
- Export calculation results in Word .docx or Excel .xlsx format
- Preview results on one place and copy/paste it in your favorite text editor
- Send results back to your email
- Support the future of this project
And even more... get access to the full set of 19 desktop calculators available for MacOS, Linux or Windows.
Full Year Service
Prepaid Monthly Cost
$2.50/month
Full year $29.95/year
When is this calculator suitable?
This calculator is very easy to use and also very handy at the same time. You can resolve basic heat power requirement tasks in a few seconds.
You can use the calculator for hot water boilers, water and air heat exchangers, hot water radiators, water chillers, air heaters, and other heat power generation and consumption units.
What has to be known for a calculation?
You can select between two calculation scenarios. The first is heat power calculation, and the other one is the flow rate calculation.
In both scenarios, you have to insert the specific heat of a fluid as well as temperatures on the start and the end of the heat exchanger.
You can also select between volume and mass flow rate, for a known density of the fluid. The calculator displays the velocity of the fluid for entered pipe internal diameter.
Register account and unlock full access
Desktop App
Fast. Accurate. Reliable.
Features in desktop app
- Save/Open multiple results
- Export to Word and Excel
- Print results
- Create list of custom fluid properties
- Resistance factor K for valves/fittings
- Pipe surface roughness selection
- Pipe material selection
- Gauge vs absolute pressure toggle
- Compressible isothermal flow
- Dry air isothermal flow
- Gas offtake flow
- Natural gas flow
- No admin rights required to install
Need a helping hand?
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If you need a quick calculation, but you are not still familiar how to use the calculator, you can order calculation service from the calculator developer.