Surveyed Plan and Design Options When you first create a project, you will create a plan of the property as surveyed. This is called the  s urveyed plan . Heatpunk allows you to create multiple design options, so you can specify different systems on the same initial floor plan. The surveyed floor plan is used in these design options. In design options, you can place heat pumps , cylinders , and model radiator upgrades .  Surveyed plan When you first create a project, you must first create the Surveyed plan . This model is the building floor plan as surveyed. Note that:  Emitters added to this plan are tagged as  existing  in the emitters tab .  Heat pumps and cylinders cannot be added to this plan.  Design options do not yet support fabric or ventilation upgrades, so these upgrades must be included in the  surveyed plan . After creating your surveyed plan , click Finish surveyed plan  to create a design option. Navigate between the  surveyed plan and design options at the top of the page.  Most changes made to the  s urveyed plan apply to all design options. Read more about this below .  Design option plans  Design option plans allow you to model emitter upgrades and specify kit changes based on the  surveyed plan . Read more about this in Sources , Hot Water and Emitters .  Click the + to add new design options. You can either duplicate and existing option or create a new option based on the surveyed plan .  In the corner of the right-hand sidebar, you can rename , duplicate and delete the selected design option:  Most changes, excluding building fabric or layout changes, made while on a design option will only apply to that design option. Read more about this below .  After the Plan task , you can only proceed with one design option in forms and reports. Make sure you have the correct option selected before continuing onto the next task.  Editing plans Some changes apply to all plans and some only apply to the selected plan. Below is a summary of how changes affect the  surveyed plan and each design option.  Changes Impact on  surveyed Plan or design options Emitters Edits to existing emitters apply to all plans. To upgrade an emitter, delete it and add a new one or click Upgrade on a radiator from within a design option. ODT Changes to ODT apply across the  surveyed plan  and design options.  Building (walls, floors, windows, doors) fabric and room layout Changes to room layout or building fabric apply across the  surveyed plan  and design options.  Room temperature and ACH Changes to the surveyed plan  apply to design options, unless the value has already been changed in that option. Changes to design options only apply to the selected option. Values in a design option appear with a * if they differ from the surveyed plan. Heat pump and hot water storage Changes to the selected heat pump or hot water storage only apply to the selected design option.  Hot water settings Changes to hot water settings only apply to the selected design option.  If you have further questions, please get in touch at help@heatpunk.co.uk  or  help@heatpunk.ie .