$24.99
10 closed-loop HVAC tools — load calcs, duct sizing, equipment selection, and job quotes. Answer questions, get a finished PDF.
A complete HVAC service engine: cooling load calculator, heating load calculator, duct sizing, equipment selector, SEER savings estimator, maintenance checklist, filter sizing, thermostat setup, job quote builder, and invoice generator. Every tool is a closed-loop: structured questions, real formulas, a finished branded PDF. No AI. No subscriptions.
Cooling Load Calculator
Heating Load Calculator
Duct Sizing Calculator
Equipment Selector
SEER Savings Estimator
Maintenance Checklist
Filter Sizing Guide
Thermostat Setup Worksheet
Job Quote Builder
Invoice Generator
Estimate cooling load in BTU and tons
Estimate heating load by climate and insulation
Size supply ducts by airflow
Select HVAC equipment by load and efficiency
Estimate energy savings from SEER upgrade
Seasonal maintenance checklist
Determine air filter size and MERV rating
Program thermostat for efficiency
Build professional job quotes
Generate professional invoices
Every load calculation, sizing, and document an HVAC tech needs — from cooling loads to SEER savings to invoices. Each one a finished branded PDF in seconds.