Severity
Moderate
Laars Heating Systems Recalls Gas Boilers and Water Heaters Due to Carbon Monoxide Poisoning Hazard
Reported: March 19, 2007 Initiated: March 19, 2007 #07535 About 2,100 units
Laars Heating Systems Co., of Rochester, N.H. issued this CPSC recall on March 19, 2007. Classified as Moderate severity. Approximately About 2,100 units are affected. The recall was issued because: Internal black plastic venting components in the gas boilers and water heaters can crack and leak flue gases, including…. This recall notice is sourced from official CPSC enforcement records. Below you will find the complete product description, hazard information, remedy instructions, and related recalls from the same manufacturer or product category.
Recall Insight
This CPSC action (record #07535) was formally reported on March 19, 2007. It is classified under Moderate severity, with a current status of Active. Laars Heating Systems Co., of Rochester, N.H. is listed as the recalling firm. Federal records indicate About 2,100 units are affected.
The documented reason for this recall is: Internal black plastic venting components in the gas boilers and water heaters can crack and leak flue gases, including carbon monoxide (CO), posing a risk of CO poisoning. Distribution information was not included in the agency filing, so consumers should assume broad potential exposure until the firm publishes point-of-sale details. The remedy documented by the agency is: Consumers should contact Laars Heating Systems to help determine if their boiler or water heater needs to be shut off immediately and to schedule a free repair. — consumers holding this product should act on that instruction rather than relying on general guidance.
To put this record in context, PlainRecalls indexes 83,949 recalls across the FDA, CPSC, NHTSA and USDA FSIS going back to 1995. Within the same product category, the database holds 6 closely related recalls, of which 1 were also issued by CPSC. That clustering is a signal — repeated actions in a narrow category often indicate a systemic quality-control issue, a supplier-wide contamination, or a design defect that has propagated across product lines. This recall is roughly 19 years old; older recalls can remain relevant because many units enter resale, rental, and secondary-market channels where the original warning never reaches the end user. Always cross-check the recall number against the official agency page before relying on any summary.
Recall Distribution by Severity Class
Units Affected
About 2,100
Related Recalls
6
1 from same agency
Product Description
This recall involves Laars 9600 CB Condensing Heating Boilers and Laars 9600 HWG Condensing Water Heaters with black vent pipe/tubing. The recalled boilers are used to generate hot water for heating systems including baseboards or radiant flooring. The recalled water heaters generate hot water for use in homes, such as showers, sinks and dishwashers. "Mark II" and "9600 CB" or "9600 HWG" are printed on the front of the boilers and water heaters. The model number and BTU size are printed on the right side of the unit. The recalled boiler and water heater exteriors are putty and black-colored or taupe and black-colored. Only the following models are included in this recall. Model Input (Btu/h) Gas Boilers: CB 150 150,000 CB 175 175,000 CB 200 200,000 Water Heaters: HWG 150 150,000 HWG 175 175,000 HWG 200 200,000
Reason for Recall
Internal black plastic venting components in the gas boilers and water heaters can crack and leak flue gases, including carbon monoxide (CO), posing a risk of CO poisoning.
Remedy
Consumers should contact Laars Heating Systems to help determine if their boiler or water heater needs to be shut off immediately and to schedule a free repair.
Details
- Recalling Firm
- Laars Heating Systems Co., of Rochester, N.H.
- Units Affected
- About 2,100
Recall Profile
| Attribute | Value |
|---|---|
| Agency | U.S. Consumer Product Safety Commission |
| Severity class | Moderate |
| Status | Active |
| Recall number | 07535 |
| Date reported | March 19, 2007 |
| Date initiated | March 19, 2007 |
| Recalling firm | Laars Heating Systems Co., of Rochester, N.H. |
| Units affected | About 2,100 |
| Distribution | Not disclosed |
Profile values are sourced directly from the official CPSC enforcement record. Source: U.S. Consumer Product Safety Commission.
Frequently Asked Questions
What product was recalled? ▼
This recall involves Laars 9600 CB Condensing Heating Boilers and Laars 9600 HWG Condensing Water Heaters with black vent pipe/tubing. The recalled boilers are used to generate hot water for heating systems including baseboards or radiant flooring. The recalled water heaters generate hot water for use in homes, such as showers, sinks and dishwashers. "Mark II" and "9600 CB" or "9600 HWG" are printed on the front of the boilers and water heaters. The model number and BTU size are printed on the right side of the unit. The recalled boiler and water heater exteriors are putty and black-colored or taupe and black-colored. Only the following models are included in this recall. Model Input (Btu/h) Gas Boilers: CB 150 150,000 CB 175 175,000 CB 200 200,000 Water Heaters: HWG 150 150,000 HWG 175 175,000 HWG 200 200,000. Recalled by Laars Heating Systems Co., of Rochester, N.H.. Units affected: About 2,100.
Why was this product recalled? ▼
Internal black plastic venting components in the gas boilers and water heaters can crack and leak flue gases, including carbon monoxide (CO), posing a risk of CO poisoning.
What should consumers do? ▼
Consumers should contact Laars Heating Systems to help determine if their boiler or water heater needs to be shut off immediately and to schedule a free repair.
Which agency issued this recall? ▼
This recall was issued by the CPSC on March 19, 2007. Severity: Moderate. Recall number: 07535.
How do I check if my product is affected by a recall? ▼
Check the product description and recall number (07535) against your product. Visit the official CPSC website for the most current information. You can also use our Recall Checker tool to search by product name or brand.
How do I report an injury from a recalled product? ▼
Report injuries to the issuing agency: CPSC at SaferProducts.gov, NHTSA at nhtsa.gov/report-a-safety-problem, or FDA via MedWatch. Document the product (photos, model/serial numbers, purchase receipts) and seek medical attention. Injury reports help agencies track hazard patterns and may strengthen enforcement actions.
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Recall Context
Product recalls are issued when a manufacturer, distributor, or federal agency determines that a product poses a safety risk to consumers. This recall is classified as moderate severity, indicating the product may cause temporary or medically reversible health consequences. Across PlainRecalls, we track 83,000+ recalls from FDA, CPSC, and NHTSA to help consumers stay informed and act quickly when safety issues arise.
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Data Sources
Data as of 2025. Source: FDA, CPSC, NHTSA, USDA FSIS federal recall databases.
- Source: FDA — Food and Drug Administration, openFDA Enforcement API (food, drug, and medical device recalls)
- Source: CPSC — Consumer Product Safety Commission Recalls API (consumer product recalls and hazards)
- Source: NHTSA — National Highway Traffic Safety Administration Recalls API (vehicle safety recalls)
- Source: USDA FSIS — Food Safety and Inspection Service (meat, poultry, and egg product recalls)
Recall information is sourced from official federal agency databases. Always verify recall details with the issuing agency for the most current status. This information is for research and awareness purposes only.
Read our methodology — how this data is sourced, computed, and verified.
All federal data sources used on this page
- U.S. Census Bureau ACS — demographic + housing + income data. census.gov/programs-surveys/acs
- BLS Occupational Employment and Wage Statistics (OEWS) — wage + employment by occupation. bls.gov/oes
- BEA Regional Economic Accounts — GDP + personal income by state/metro. bea.gov/data/regional
- U.S. Census Bureau County Business Patterns — establishment + employment by industry. census.gov/cbp
- IRS Statistics of Income (SOI) — tax-return aggregate data. irs.gov/statistics
- data.gov — U.S. federal open-data portal — discovery layer for additional federal sources. data.gov
Source: Federal recall agencies (FDA, CPSC, NHTSA, USDA FSIS) Aggregated multi-agency recall feeds · 2024 Recall data normalized across federal agency feeds; severity classifications follow each agency's own taxonomy (FDA Class I/II/III; CPSC, NHTSA, USDA FSIS).