HVAC Size Calculator
SKU HBC-039A Manual-J-lite sizing tool — square footage, climate zone, insulation — that captures leads from “what size AC do I need” searches and hands off to a proper load calculation.
AXO (Agent Experience Optimization) and SXO (Search Experience Optimization) components come included on $30K+ website builds — Premium Build and up. On smaller builds they're available as à la carte Build Components.
Live now on Enviro Heating & AirClick the screenshot to open the real, live instance.
A working preview — right here on this page.
This is the same interaction the shipped HVAC Size Calculator gives your visitors — the real thing runs on your site with your data, branding, and copy.
Outcome, tier, and proof — before you buy.
Primary intent
Convert visitors
“Turn traffic into booked jobs”
Performance tier
Tier 2 · High-intent capture
Tier 2 · High-intent capture — ready-to-buy traffic
Outcome
Sizing tool that educates and captures a quote-ready lead
Live on 10 client sites · Featured: Avatex Service Company
Why your website needs the HVAC Size Calculator.
“What size AC do I need” is one of the highest-volume questions in the trade — and today the generic calculators answering it capture the lead you should own. Manual-J-lite inputs give a credible starting answer and put your booking path at the end of it.
Everything included when you order this component.
Every line below is delivered on the HVAC Size Calculator build. Nothing gets pulled out for an upsell — this is what you get for $765.
- Square-footage + climate-zone inputs
- Tonnage / BTU output with range
- Result-gate lead capture (zip + email)
- Auto-CTA to book Manual-J
- SEO landing per city
This is the HVAC Size Calculator running in production.
- Read the launch storyAvatex Service Company
AC-sizing calculator that estimates tonnage from square footage, live on the Houston build
A few quick questions when you check out.
Just enough for the team to scope your build without a back-and-forth. Everything else gets confirmed on your kickoff call.
- Which equipment types should it size?Required
We tune the sizing logic to what you actually install.
Often ordered together.
ConversionProject + Financing Calculator
A multi-trade project builder with a sticky live estimate — check off Furnace, AC, Plumbing, Insulation and watch the monthly payment, daily-cost framing, and bill savings update, then pre-qualify.
$3,400
ConversionEnergy Savings Plan Builder
Visitors tap upgrades to build a custom energy plan — a live efficiency score ring, per-upgrade $/yr savings, and their plan emailed as a PDF. Ideal for HVAC and electrification.
$3,060
ConversionFinancing Calculator and Application Integration
A sticky monthly-payment calculator wired straight into your lender's soft-pull pre-qualification (GreenSky, Synchrony, Wisetack, Service Finance) — every calculation is a captured lead.
$3,060
ConversionRebate + Financing Stack Calculator
Stacks federal, state, utility, and manufacturer rebates against financing in one view — a $14k system becomes $8,200 after rebates becomes a monthly number, in real time.
$2,975
Add HVAC Size Calculator to your website.
$765 one-time · 6–10 business days · nothing billed until scope is confirmed and you approve the quote.