What our numbers mean

The quote checker: your inputs, simple arithmetic

The known total is your quoted cash price plus the known extra charges you enter. We calculate in cents and compare the largest and smallest valid totals. We do not estimate missing costs, subtract rebates, calculate financing, or adjust for geography.

The eight scope checks record your answers. “Included” means you marked it included; it is not an independent inspection. The question list contains the items you marked unclear or excluded, plus a prompt to confirm price and payment terms. No AI is used in this tool.

Example quotes are fictional and labeled. They demonstrate why headline prices can be misleading; they are not recommended budgets or contractor offers.

Community prices: useful context with limits

Homeowners and contractors can submit project details. These records are not independently audited. Their source label describes who submitted them, not whether the invoice or price is authentic. Coverage and the amount of detail vary by area.

Search can include exact ZIP matches and the surrounding three-digit ZIP area. Broader context must not be read as an exact local bid. Look at the individual records, geography, dates, equipment and sample size before interpreting any summary. A small, mixed sample is not a representative market survey.

Guides and Ember

Guides explain purchasing decisions and link to primary sources for technical or incentive claims. The review date records the editorial check; program rules can change afterward. We are not a licensed HVAC contractor or tax adviser.

Ember is a separate AI assistant. Its outputs may be incomplete or inaccurate and are for educational planning. It cannot inspect your home, perform an on-site load calculation, verify credentials or issue a binding quote. Avoid sending personal or confidential details in chat.

Sponsors and independence

We offer paid placements to support free tools. Any activated placement is labeled “Sponsored” and links are marked as sponsored. Payment does not change quote calculations, community data or editorial recommendations. An advertisement is not an endorsement or verification of the business.

Privacy and corrections

Quote-check entries stay on your device. Optional browser storage can be cleared from the tool. The separate community submission and AI features use backend services as described in our privacy policy.

Send corrections or questions to hvacestimators.net@gmail.com. Include the page and the statement or record you want us to review, without sending private invoices or account passwords.