Variable: {payable_days_average_hvac_industry}Definition: Average number of days it takes HVAC contractors to pay suppliers (accounts payable days outstanding, DPO).Value: N/ATop Performers: Elite 10-20% achieve 50-60 days via strong vendor negotiations and terms optimization (ServiceTitan 2023).Value Tiers: N/A – Consistent across sizes.Red Flag Trigger: <25 days (cash strain) or >75 days (vendor risk).Default Value: 42 days
Variable: {inventory_days_on_hand_hvac_industry}Definition: Average days HVAC parts inventory is held before use or sale (days inventory outstanding, DIO).Value: N/ATop Performers: Top performers hold <30 days through just-in-time ordering and demand forecasting (ServiceTitan/Nexstar).Value Tiers: <$1M revenue: 60 days; $1-5M: 50 days; >$5M: 35 days.Red Flag Trigger: >90 days.Default Value: 47 days
Variable: {productivity_ideal_per_employee_hvac_industry}Definition: Ideal annual revenue generated per full-time employee in HVAC businesses.Value: N/ATop Performers: Elite achieve $250k+ per employee via high tech utilization (75%+ billable) and upsell focus (Nexstar/ServiceTitan 2023).Value Tiers: <$1M revenue: $150k; $1-5M: $200k; >$5M: $250k.Red Flag Trigger: <$120k per employee.Default Value: $175,000
Variable: {callback_cost_per_incident_hvac_industry}Definition: Average direct and indirect cost of a single HVAC callback incident.Value: N/ATop Performers: <$250 per incident with callback rates <3% via diagnostics training (ACCA/Contractor Magazine).Value Tiers: N/A – Scales minimally with size.Red Flag Trigger: >$500 or rate >8% of calls.Default Value: $375
Variable: {training_cost_per_hour_hvac_industry}Definition: Average cost per hour for HVAC technician training programs.Value: N/ATop Performers: $40-60/hr with ROI from certifications reducing callbacks 20-30% (PHCC/EGIA).Value Tiers: N/A.Red Flag Trigger: <$20/hr (underinvestment) or >$100/hr.Default Value: $50
Variable: {maintenance_contract_renewal_rate_percent_hvac_industry}Definition: Percentage of HVAC maintenance contracts renewed annually.Value: N/ATop Performers: 92%+ renewal via proactive communication and value-add services (ServiceTitan 2023).Value Tiers: N/A – Goal consistent across sizes.Red Flag Trigger: <75%.Default Value: 85%
Variable: {fixed_costs_annual_hvac_industry}Definition: Average annual fixed operating costs (rent, admin salaries, insurance, etc.) excluding variable costs.Value: N/ATop Performers: 22-28% of revenue via lean overhead (Nexstar benchmarks).Value Tiers: <$1M revenue: $250k; $1-5M: $800k; >$5M: $1.8M (RMA/Successware).Red Flag Trigger: >40% of revenue.Default Value: N/A – Use tiers
Variable: {tax_rate_percent_hvac_industry}Definition: Average effective combined federal, state, and local tax rate for HVAC contractors.Value: N/ATop Performers: 22-25% via tax optimization strategies (RMA Annual Studies).Value Tiers: N/A.Red Flag Trigger: >35% (planning needed).Default Value: 27%
Variable: {depreciation_percent_of_fixed_assets_hvac_industry}Definition: Annual depreciation expense as a percentage of total fixed assets in HVAC firms.Value: N/ATop Performers: 12-15% with efficient asset turnover (IBISWorld/RMA).Value Tiers: N/A.Red Flag Trigger: <8% (under-depreciation) or >25% (over-aging assets).Default Value: 15%
Variable: {ideal_cash_conversion_cycle_days_hvac_industry}Definition: Optimal cash conversion cycle (DSO + DIO - DPO) for HVAC contractors.Value: N/ATop Performers: <20 days or negative via fast collections and inventory turns (ServiceTitan 2023 avg 27 days).Value Tiers: Small (<10 techs): 40 days; Large (>20 techs): 25 days.Red Flag Trigger: >60 days.Default Value: 30 days