1. quick_sizer
Calculate BTU requirements for heat pump sizing based on ZIP code, square footage, and build year.
2. bill_estimator
Perform cost analysis and return on investment calculations using home details, heat pump model, and current fuel type.
3. cold_climate_check
Evaluate cold weather performance for a given location, equipment model, and backup heating setup.
4. project_cost_estimator
Generate an installation cost breakdown based on site complexity and regional factors.