What You'll Learn

• What the HVAC Vitals Score is and what it measures
• The minimum probe requirements for a valid score
• Which subsystems contribute to the score and how they are weighted
• How age adjustment works and what age_loss represents
• How to interpret score ranges (excellent through significant issues)
• How technician overrides, airflow measurement method, and Test In / Test Out comparisons affect the score

What You'll Need

• Device: iPhone (iOS 15+) or Android phone/tablet (Android 10+) with measureQuick installed
• App version: v3.0 or later
• Account: measureQuick Premier subscription (Vitals Score is a Premier feature)
• Context: A completed test with diagnostic results, or Demo Mode enabled
• Knowledge: Familiarity with the Diagnostics screen (B14) and how to save tests (G11)
• Time: 8 minutes to read

What the Vitals Score Measures

The HVAC Vitals Score is a 0-100% performance rating that grades HVAC system health. It aggregates the pass/fail status of all measurement-based subsystems into a single number, displayed with color coding (green for healthy, yellow for concerning, red for critical) and an A-F letter grade on consumer reports. The Vitals Score is a Premier feature ($49/user/month).

The score is not a simple average. It is calculated by the measureQuick platform from pass/fail results across multiple subsystems, the magnitude of any failures (how far outside acceptable range), override indicators, and equipment condition flags. A system with one minor deviation scores differently from one with the same subsystem in deep failure. As the master reference defines it, the Vitals Score "removes technician personal opinion from the diagnosis."

The Vitals Score serves two purposes. For technicians and managers, it provides a quick summary of system health without reviewing every subsystem individually. For customers, it translates complex diagnostic data into a number and letter grade they can understand. Contractors consistently report that the letter grade format transforms customer conversations. Chad Simpson (Owner, Simpson Salute) uses letter grades to drive repair-vs-replacement conversations. Mike Cotto (Field Supervisor, Freedom Heating and Cooling) described a case where "I went from a C plus to an A plus just off of airflow. That customer was ecstatic."

Step-by-Step Guide

Step 1: Understand the Minimum Probe Requirements

The Vitals Score requires a minimum number of physical probe channels to produce a valid result. Without enough instrument data, the app cannot calculate the score.

• Cooling and heating tests: 9 or more physical probe channels
• Gas furnace tests: 7 or more physical probe channels

These thresholds use the probe_count_physical metric, which counts only actual instruments. Channels marked as "Calculated" (derived from temperature and refrigerant type without live pressure readings) and "Weather" (ambient data from weather services) do not count toward these minimums.

A typical cooling test kit reaches 12 channels from 5-6 physical devices: a manifold gauge contributes 4-5 channels (low-side pressure, high-side pressure, suction line temperature, liquid line temperature), two psychrometers add 4 channels (entering and leaving dry bulb and relative humidity), an outdoor temperature probe adds 1 channel, and a static pressure manometer adds 2-3 channels. measureQuick recommends 9 measurement points compared to the 6-probe manufacturer kits common in the industry, because the additional data points enable more comprehensive system evaluation.

Gas furnace tests have a lower threshold because a combustion analyzer produces many channels from a single instrument (CO, CO2, O2, stack temperature, draft, flue velocity).

If your test shows no Vitals Score, the most common cause is insufficient probe connections. Check your smart tool connections and verify all probes are transmitting live data. Also confirm you have an active Premier subscription, as the Vitals Score is a Premier feature.

Step 2: Know the Score Components

For cooling and heating tests, the Vitals Score draws from these measurement-based subsystems:

For gas furnace tests, the subsystems include fuel delivery, venting, combustion, and heating efficiency.

Each subsystem contributes to the score based on its result and the severity of any failure. A system that fails refrigerant charge by 1 degree of subcooling loses fewer points than one that fails by 8 degrees.

Subjective subsystems (condensate, outdoor unit condition, indoor unit condition, air filtration) are assessed by visual inspection and are reported separately. They have approximately a 95% override rate in aggregate data, reflecting that technicians routinely adjust these visual-only assessments. They do not carry the same weight as measurement-based subsystems in the score.

For gas furnace tests, the Vitals Score draws from a different set of subsystems. As Jim Bergmann demonstrates in his Gas Furnace Workflow video: "I got my heating system vital score. I lost a few points here because my high static pressure. I've got issues with my air distribution system and my venting system... so high static pressure and low stack temp. Here's my score breakdown and here's my measurement details that sort of support what I'm doing."

Step 3: Understand Age Adjustment

measureQuick provides two versions of the score:

• vitals_score - the raw score based on current measured performance
• vitals_age_adjusted - the score adjusted to account for equipment age

The formula is: vitals_age_adjusted = vitals_score + age_loss

The age_loss value represents the penalty applied for equipment age, derived from SEER rating as a proxy (manufacture dates are not available in the diagnostic data). The average penalty is approximately 8 points.

Why this matters: a 15-year-old system scoring 82 raw may actually be performing at full capacity for its age. The age-adjusted score of 90 reflects that the system is doing everything it can given its condition. This distinction is important when communicating results to customers. A low raw score on old equipment does not always mean something is broken - it may mean the equipment has degraded normally over time.

Step 4: Interpret the Score Ranges

These ranges apply to the raw score. Age-adjusted scores will generally be higher, especially on older equipment.

Step 5: Understand How Overrides Affect the Score

When a technician overrides a pass/fail result on a subsystem, the Vitals Score recalculates based on the final (post-override) result. If the app flags refrigerant charge as Fail and the technician overrides it to Pass, the score improves.

Override rates vary by subsystem. Across 115,706 quality-filtered cooling tests in the V12 database, refrigerant charge has a 12.8% override rate (the app flags 58.6% of systems, but the final tech-adjusted failure rate is 45.4%). Electrical has a 19.0% override rate. These overrides reflect professional judgment - for instance, a technician may accept a 2-degree charge deviation on a system that is otherwise performing well.

The score you see on the Diagnostics screen always reflects the post-override state.

Step 6: Consider Airflow Measurement Method

How airflow is measured affects the reliability of several subsystems that feed into the score. measureQuick tracks the airflow source for each test:

• TrueFlow measured airflow - captured with a TrueFlow grid at the filter, directly measuring actual CFM
• Estimated airflow - calculated from temperature split and capacity data
• Manual airflow - entered by the technician from another measurement method

Measured airflow provides higher confidence in the air distribution, capacity, and efficiency subsystem results. When airflow is estimated, those subsystem evaluations carry more uncertainty. As Jim Bergmann explains: airflow measurement is central to accurate diagnostics because "CFM when we multiply it through, any error multiplies straight" through capacity and efficiency calculations. If you have access to a TrueFlow grid or equivalent measurement device, use it. The resulting score will be more accurate.

Step 7: Use Test In / Test Out to Prove Improvement

The Vitals Score becomes most valuable when you have both a Test In and a Test Out for the same project. The Test In captures the system's baseline condition before work. The Test Out captures the result after repairs or adjustments.

Comparing the two scores provides concrete, measurable proof of improvement. A system that scored 62 on Test In and 91 on Test Out tells a clear story: the work made a measurable difference. This comparison is useful for customer communication, management review, and quality tracking across a team.

For details on capturing paired tests, see Save Test In / Save Test Out.

Transcript Insights

Jim Bergmann demonstrates the Vitals Score in the Gas Furnace Workflow video: "I got my cover sheet, I got my heating system vital score, I lost a few points here because my high static pressure, I've got issues with my air distribution system and my venting system which we talked about, so high static pressure and low stack temp, here's my score breakdown, and here's my measurement details that sort of support what I'm doing." This shows how the score breakdown maps directly to the diagnostic findings: each failing subsystem contributes a visible point deduction.

From the Cooling Commissioning walkthrough, Jim describes the system vitals mode: "I hit to the right of this, it's going to go into the system vitals mode, which was we talked about this on a recent podcast." The Vitals Score view is accessible from the diagnostics screen during live testing, allowing you to see the score update as readings stabilize.

From the Gas Furnace Combustion Analysis Training: "appliance, it's going to give you all the system's relevant vitals, it's going to give you pressures such as gas pressure." The Vitals Score encompasses all instrumented subsystems, not just refrigerant-side measurements.

Customer Insights

• Mike Cotto (Field Supervisor, Freedom Heating and Cooling): "I went from a C plus to an A plus just off of airflow. That customer was ecstatic." The letter-grade improvement is what customers respond to, and it drives both satisfaction and referrals.

• Chad Simpson (Owner, Simpson Salute, ~100 employees): Uses letter grades to drive repair-vs-replacement conversations. When a system scores below a C, the conversation shifts naturally from "what should we fix?" to "is it worth fixing?" His company reduced callbacks from 4% to under 2% after adopting measurement-based scoring on every call.

• Brandon Payne (Service Manager, Ecoplumbers): "We went from an F to a B on a customer's system with very little money, and that customer has referred many customers to us." The paired Test In / Test Out Vitals Score comparison is his most effective customer communication tool.

• Aaron Gregg (Service Manager, Jacob's Ladder Heating and Cooling): "Customers have told me multiple times, I've never had a company show me that type of thing before." Customers choose his company over competition specifically because of the Vitals Score reports.

• Tom Grochmal (educator, mechanicalbusiness.com): "At the end, it produces a report that serves as a baseline for future maintenance and repair, and gives assurance to the owner that the system was set up properly, with the measurements to prove it."

Video Walkthrough

• YouTube: (2,153 views, 1:50). Demonstrates achieving a Vitals Score from probe deployment to final result

• YouTube: (475 views, 0:59). Brief overview of the Vitals Score's role in customer communication and system evaluation. Tagged: reporting

• YouTube: (17,774 views, 17:13). Covers Premier features including Vitals Score display and updated reporting in v3.0+

• YouTube: (4,365 views, 12:44). Walks through the Vitals Report page by page and demonstrates how to use the score and letter grade in customer conversations. Tagged: vitals_score, reporting

• YouTube: (6:40). Demonstrates how benchmarking interacts with the Vitals Score. Shows target zones, fault clearing, and why benchmarking is "really the most powerful feature of measureQuick because it baselines your company so everybody knows exactly how a piece of equipment is supposed to operate."

• YouTube: (300 views, 1:00). Compares the Classic Report with the Vitals Report. Tagged: vitals_score, reporting

• YouTube: (31:40). Demonstrates the heating Vitals Score, score breakdown, and measurement details for gas furnace tests. Tagged: vitals_score, reporting, combustion

• YouTube: (371 views, 7:52). Discusses how the Vitals Score supports training and quality control across teams

• YouTube: (66,533 views, 72 min). Comprehensive app walkthrough including diagnostics, scoring, and system evaluation

Tips & Common Issues

1. No Vitals Score appearing? First confirm you have an active Premier subscription. Then check your probe count. Cooling and heating tests require 9+ physical probe channels. Gas furnace tests require 7+. If you are below the threshold, the app cannot generate a score. Connect additional probes or verify that existing probes are transmitting. Remember that "Calculated" and "Weather" channels do not count toward the physical probe threshold.

2. Raw score vs. age-adjusted score. When presenting results to customers, consider which score is more appropriate. For older equipment, the age-adjusted score gives a fairer picture of how well the system is performing relative to its age. For new installations, raw and age-adjusted scores should be close to identical.

3. A high override rate on a subsystem does not mean the app is wrong. The app applies strict engineering thresholds. A 2-degree subcooling deviation technically fails the charge assessment, but may not impair system performance. The override lets the technician apply professional context. Both the app-calculated and tech-adjusted results have value.

4. Score differences between metering device types. Systems with piston (fixed orifice) metering devices show a 56.0% charge failure rate in the V12 database. TXV systems fail at a lower rate. This means piston systems tend to score lower on the refrigerant charge component. This is a real industry finding, not a scoring artifact.

5. Do not compare aggregate Test In scores to aggregate Test Out scores across different projects. This produces misleading results due to Simpson's paradox (different companies and conditions in each group). Always compare paired tests within the same project.

6. The score reflects post-override results. If you override a subsystem from Fail to Pass, the score updates immediately. Review your overrides before saving the test to ensure the final score accurately represents the system's condition.

7. Industry context from V12 data. Across 115,706 quality-filtered cooling tests: the average Vitals Score for voluntarily benchmarked companies is 92.4 (age-adjusted: 97.5). Non-benchmarked companies average 82.1 (age-adjusted: 91.3). If your scores consistently fall below the 82-point average, that signals an opportunity to improve diagnostic and repair practices.

8. Reports as third-party verification. The Vitals Score and report are generated by the platform, not by the technician. This makes them function as third-party verification of system performance. As DR Richardson (Owner, DR Richardson's HVAC) notes, "measureQuick brings us safety from malpractice. It changes everything." Multiple contractors report that customers trust the report because it comes from the app, not from the technician's opinion.

9. Existing help desk coverage. The measureQuick help desk has a published article titled "Guide to the measureQuick Reports" covering the Vitals Report, Pro Report, Classic Report, and NCI Report types. If you need a quick reference on report types and when to use each, check the in-app help or visit the help desk at support.measurequick.com.

Reference Material

HVAC Vitals Explained

Vitals Score Factors showing Temperature Split, Static Pressure, Approach Temperature, and Refrigerant Charge categories

Vitals Score Factors showing Refrigerant Charge deduction and A-F grade thresholds

Download: Tests and Probes Quick Reference (PDF)

Download: measureQuick Introduction & Terminology (PDF)

Download: Sample Vitals Report (PDF)

Download: Sample Pro Report (PDF)

Related Articles

Prerequisites (should read before this article):

• Understanding Diagnostic Screens - How to access and read the Diagnostics screen
• Save Test In / Save Test Out - How to capture paired before/after tests

Follow-up articles (next steps after this one):

• Benchmarking Performance - Comparing your scores to company and industry averages
• Vitals in Customer Conversation - How to present Vitals Scores and diagnostics to customers
• Reading Diagnostic Flags - Understanding individual subsystem pass/fail details

Related in the same domain:

• Report Generation - How to generate reports, report types (Classic vs Vitals), and report sections
• Report Sharing & Email - How to share reports with customers and push to CRM
• Dashboard Analytics - KPI tracking and team performance dashboards

Need Help?

If you have questions about the Vitals Score or need help interpreting your results, contact measureQuick support at support@measurequick.com.