Furnaces, warm air (i.e., forced air), manufacturing · Missouri

Johnson Heater Corp

Maryland Heights, MO · ~190 workers · 4 years of OSHA Injury Tracking Application data.

C
Average Safety Record
3.8
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Johnson Heater Corp runs at 115% of its industry's injury rate - about level with the typical Furnaces, warm air (i.e., forced air), manufacturing workplace, earning a grade C.

Johnson Heater Corp: 3.8 TCR = 115% of Furnaces, warm air (i.e., forced air), manufacturing BLS 3.3 · 4y Form 300A (see methodology below)

Johnson Heater Corp safety composite

Johnson Heater Corp scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on dart rate (safer than 12%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

F

31/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 3.78 per 100 workers

Safer than 35% of industry peers

DART rate
F 4.61 per 100 workers

Safer than 12% of industry peers

Fatalities
D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Rising injury rate

Johnson Heater Corp: 2.5 → 4.6 TCR

Peak year 2019 @ 6.0 TCR · DART/TCR 1.22× in 2024

Johnson Heater Corp's TCR rose 2.1 from 2.5 in 2018 to 4.6 in 2024. Peak filing year was 2019 at 6.0 TCR. In 2024, DART was 1.22× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 333415 · Maryland Heights, MO ABOVE-IND · MID

Grade C · TCR 3.8 · 115% of ind

  • DART 4.6 DART
  • RANK #12/18
  • PHOTO Marlo Coil
  • BOOK 4y book
  • INJ 29 inj
  • SIZE ~190 FTE

Nearest TCR peer: Marlo Coil (0.0 TCR gap)

Read with this employer → · Industry book → · Missouri employers → · Look up another →

Johnson Heater Corp in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Johnson Heater Corp averages 3.8 TCR (115% of the Furnaces, warm air (i.e., forced air), manufacturing BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Johnson Heater Corp TCR series: 2018=2.5 · 2019=6 · 2023=2 · 2024=4.6 · BLS 3.3

Where Johnson Heater Corp falls in its industry

461 Furnaces, warm air (i.e., forc establishments

Safer than 35% of graded establishments in this industry, whose median TCR is 2.8.

More dangerous than peersSafer than peers

Narrower to Missouri alone (the establishments it most directly competes with for workers and contracts): ranked #12 safest of 18 Furnaces, warm air (i.e., forc employers in Missouri.

Johnson Heater Corp (190 employees, TCR 3.8) among 29 same-industry peers, split at the industry median of 164 employees and a TCR of 2.8 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 05001,0001,5002,0002,500 0246810 Average employees Total Case Rate Johnson Heater Corp
Johnson Heater Corp (190 employees, TCR 3.8) among 29 same-industry peers, split at the industry median of 164 employees and a TCR of 2.8

Johnson Heater Corp has more employees than the Furnaces, warm air (i.e., forced air), m median and a higher injury rate than the industry's median TCR of 2.8. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2024 4.6 4.6 10 0 0
2023 2.0 1.5 4 0 0
2019 6.0 3.3 11 0 0
2018 2.5 1.9 4 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

333415 · MO · Maryland Heights

461 Furnaces, warm air (i.e., forced air), manufacturing employers nationwide with a credible TCR · 10,075 rated employers in Missouri with headcount on file · 112 employers in Maryland Heights, MO · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Marlo Coil 3.8 TCR
NAICS-TCR Custom Coolers, Inc. CA 3.8 TCR
NAICS-TCR Bard Manufacturing Company Inc - Madison 3.8 TCR
NAICS-TCR UCT 3.8 TCR
STATE-SIZE Ideker, Inc. 190 FTE
STATE-SIZE North Kansas City Facility 190 FTE
STATE-SIZE TC Transcontinental Capri 190 FTE
STATE-SIZE Hillyard Co. - Inc/Office 190 FTE
CITY-NEAR GHQ-Global Headquarters 2,598 FTE
CITY-NEAR GHQ-Global Headquaters 2,256 FTE
CITY-NEAR MO_Maryland Heights_13736 Riverport_21111080 1,005 FTE
CITY-NEAR Hollywood Casino St. Louis 874 FTE
NAT-TCR Malco Products, Inc. Alliance 3.8 TCR
NAT-TCR Construction 3.8 TCR
NAT-TCR Carmi Manor 3.8 TCR
NAT-TCR Mason Creek Transitional Care of Katy 3.8 TCR
NAT-SIZE Care One at Essex Park 190 FTE
NAT-SIZE Russell Standard 190 FTE
NAT-SIZE Charps, LLC 190 FTE
NAT-SIZE Encompass Health Rehabilitation Hospital of NIttany Valley 190 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2023, 2019, 2018. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.