Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

# Online Design of Hot Water Heating Systems - Metric Units

## Online design tool for hot water heating systems

This tool can be used to design hot water heating systems.

### How to Use

• Make a sketch of the system - something similar to the default sketch below. Custom drawings can be linked to the application - any global (http://..) or local (file://..) url should work
• Tag the sections and add them to the hierarchical application structure below (after reset)
• Add input data - power, preliminary dimensions, lengths, minor coefficients, temperature drop, and so on for each section
• Modify the piping dimensions to achieve reasonable values for velocities and pressure drops
• Select pump - the pump pressure must be larger than the highest accumulated pressure loss in the system
• Balance the system - start with the endpoints - add balancing pressures until the pump pressures in the end points equals zero. Add balancing pressure in other sections if required.
• Save the data file to your computer/network
• dimensions, minor loss coefficients, viscosity, density, roughness, specific heat
• #### Open this app - "Designing Hot Water Heating Systems - Metric Units"

Important! - this calculation is for the flow OR the return piping system. If the flow and return piping systems are more or less identical - as in the default example above - the total pressure loss through the system for the pump to handle is 2 times the calculated (as indicated in the graph).

If the flow and the return system are different - like with a reversed return system - then the flow and the return systems must be calculated separately. The total pressure loss for the pump to handle will be the summarized pressure loss for the flow and return system.

• Note! - Since only half of the system is calculated - use only half the minor loss coefficients specified by suppliers in connection points between flow and return systems - typical in heating elements and/or in the central heater and pump.
• When selecting balancing valves - keep the flow but double the calculated balancing pressure drop for systems with identical flow and return piping - and summarize if the piping is different.

## Related Topics

• Heating - Heating systems - capacity and design of boilers, pipelines, heat exchangers, expansion systems and more

## Tag Search

• en: hot water heating system design application tool

## Engineering ToolBox - SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse!

## Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

## Citation

• Engineering ToolBox, (2019). Online Design of Hot Water Heating Systems - Metric Units. [online] Available at: https://www.engineeringtoolbox.com/hot-water-heating-system-design-application-d_2155.html [Accessed Day Mo. Year].

Modify access date.

. .

close

9 13