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HVAC Sizing & Quote Calculator

Size the unit and price the job in the same step.

HVAC and fabrication shops start from a sizing rule — like BTU per square foot — to turn a room's dimensions into a recommended equipment size, then price the job from that size. The real moat is the business's own conditional pricing rules once they customize this, not the arithmetic itself.

HVAC Sizing & Quote Calculator

Step 1 · Recommended capacity
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Step 2 · Estimated equipment + install cost Fill in every field

This is a barebone starting point — real pricing rules go beyond one formula. Need this for your own business? Make your own →

Questions

How is the recommended BTU capacity calculated?

A simple rule of thumb: room size × a BTU-per-square-foot factor. Real sizing also depends on ceiling height, insulation, windows, and climate — this is a starting estimate, not a full load calculation.

Does the cost include ductwork or electrical work?

No — this barebone version only covers equipment plus a base install fee. Add extra steps for ductwork, electrical, or permits.

Can I price different equipment tiers (budget vs. premium)?

Yes, using an if/then/else block that picks a different cost-per-ton based on the tier the customer selects.

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