Showing Posts From
Sizing
Sizing is one of the broadest tags on the blog — capacity for cooling and heating, duct dimensions, and electrical conductor or breaker choices that keep jobs safe and comfortable.
Use it as a discovery tag, then follow the more specific sizing labels (ac sizing, duct sizing, wire size) for focused reading.
Guides in this tag
- HVAC Calculators: Free Online Tools for Sizing, Airflow & Cost
Free hvac calculators for sizing, airflow, diagnostics, and cost - btu, tonnage, manual j, cfm, duct size, superheat, seer savings, replacement cost, and more. Plus formula air hvac reference.
- Air Conditioning Load Calculation: Heating & Cooling Load Guide
Air conditioning load calculation explained - heat load calculation hvac, cooling load estimates, hvac system load calculation, manual j heat load calculation, furnace load calculation, and wrightsoft manual j basics.
- Commercial HVAC Load Calculation Guide
Commercial hvac load calculation guide - commercial hvac sizing calculator methods, ASHRAE vs ACCA approaches, tons per sq ft rules, and when to use a professional engineer.
- Commercial HVAC Tons per Square Foot (Sizing Guide)
Commercial HVAC sizing by square feet per ton, with planning figures for offices, retail, restaurants, warehouses, and server rooms - why internal gains dominate and why a block load calc is required.
- What Size Mini Split Do I Need? (Sizing Chart)
How to size a ductless mini split: a BTU-by-room-size chart, single-zone vs multi-zone sizing, why oversizing wrecks an inverter, and the adjustments that change the number.
- What Is Manual J? Heat & Cooling Load Calculation Explained
Manual J is the ACCA standard for calculating a home's heating and cooling load. What it is, the inputs it uses, how heat load and cooling load are calculated, and why it beats rules of thumb.
Related resources
- 29 Jun, 2026
HVAC Calculators: Free Online Tools for Sizing, Airflow & Cost
Free hvac calculators for sizing, airflow, diagnostics, and cost - btu, tonnage, manual j, cfm, duct size, superheat, seer savings, replacement cost, and more. Plus formula air hvac reference.
- 29 Jun, 2026
Air Conditioning Load Calculation: Heating & Cooling Load Guide
Air conditioning load calculation explained - heat load calculation hvac, cooling load estimates, hvac system load calculation, manual j heat load calculation, furnace load calculation, and wrightsoft manual j basics.
- 28 Jun, 2026
Commercial HVAC Load Calculation Guide
Commercial hvac load calculation guide - commercial hvac sizing calculator methods, ASHRAE vs ACCA approaches, tons per sq ft rules, and when to use a professional engineer.
- 26 Jun, 2026
Commercial HVAC Tons per Square Foot (Sizing Guide)
Commercial HVAC sizing by square feet per ton, with planning figures for offices, retail, restaurants, warehouses, and server rooms - why internal gains dominate and why a block load calc is required.
- 26 Jun, 2026
What Size Mini Split Do I Need? (Sizing Chart)
How to size a ductless mini split: a BTU-by-room-size chart, single-zone vs multi-zone sizing, why oversizing wrecks an inverter, and the adjustments that change the number.
- 19 Jun, 2026
What Is Manual J? Heat & Cooling Load Calculation Explained
Manual J is the ACCA standard for calculating a home's heating and cooling load. What it is, the inputs it uses, how heat load and cooling load are calculated, and why it beats rules of thumb.
- 18 Jun, 2026
How to Size a Dehumidifier for Your Home
How to size a dehumidifier by square footage and dampness level, what the 2019 DOE pint rating change means, and when to choose a whole-house unit over a portable.
- 09 Jun, 2026
Manual J vs Rule of Thumb: When to Use Each
Manual J is a room-by-room load calculation; rules of thumb estimate tonnage from square footage. How each works, why oversizing hurts, and when each is appropriate.
- 03 Jun, 2026
What Size Heat Pump Do I Need? A Guide for Cold Climates
Size a heat pump for both cooling and heating with balance-point analysis for cold climates, climate zone factors, and when to add backup heat.
- 27 May, 2026
Furnace Sizing Guide: What Size Furnace for My House?
Find the right furnace BTU for your home by climate zone and insulation with AFUE adjustment, worked examples, and why oversizing is the most common mistake.
Frequently asked questions
Common questions about Sizing guides on the TradesQuote blog.
What will I find under Sizing?+
This tag lists 10 published guides tagged or categorized as Sizing. Topics typically include sizing, cost estimating, diagnostics, and practical contractor workflows tied to that subject.
Are these articles a substitute for code or engineered design?+
No. TradesQuote guides explain concepts and estimating shortcuts so you can work faster and communicate clearly. Always follow applicable codes, manufacturer instructions, and professional engineering requirements for the job.
How do these pages relate to TradesQuote tools?+
Many articles link to free HVAC or electrical calculators and to TradesQuote estimating features. Use the guides to understand the topic, then use the tools to produce numbers for proposals and field checks.