Laars Heating Systems Recalls Gas Boilers and Water Heaters Due to Carbon Monoxide Poisoning Hazard
Recall at a glance
- Recall number
- 07-535 (CPSC)
- Recall date
- March 19, 2007
- Brand
- Laars Heating Systems
- Category
- Heaters, fans and air conditioners
- Products
- Laars 9600 CB Condensing Boilers & 9600 HWG Condensing Water Heaters
- Hazard
- Carbon Monoxide Poisoning Hazard
- Hazard type
- Poisoning and toxic substances
- Units
- About 2,100
- Made in
- United States
- Last updated by CPSC
- May 23, 2014
What 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
Is my product affected?
Compare your product with the details below, including model numbers where listed.
- Laars 9600 CB Condensing Boilers & 9600 HWG Condensing Water Heaters · About 2,100 units
Photos from the recall notice



Where it was sold
Companies named in the notice: Plumbing and heating wholesalers and representatives nationwide from November 1998 through February 2007 for between $6,500 and $7,300.; Laars Heating Systems Co., of Rochester, N.H..
Injuries or incidents reported
Laars has received three reports of cracked vent components. No injuries have been reported.
Consumer contact
Contact Laars Service Department at (800) 900-9276, Extension 4, between 7 a.m. and 4 p.m. PT Monday through Friday, or visit the firm's Web site at www.Laars.com
Recall history and context
Laars Heating Systems appears in 2 CPSC recalls on record.
Since 2019 CPSC has recorded 75 recalls in the heaters, fans and air conditioners category, 17 recalls of them in the past 12 months.
Frequently asked questions
What was recalled?
Laars 9600 CB Condensing Boilers & 9600 HWG Condensing Water Heaters (About 2,100 units). This recall involves Laars 9600 CB Condensing Heating Boilers and Laars 9600 HWG Condensing Water Heaters with black vent pipe/tubing.
Why was it recalled?
CPSC lists the reason as: Carbon Monoxide Poisoning Hazard.
What should I do if I own one?
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.
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Source: U.S. Consumer Product Safety Commission recall data, shown as published and last updated by CPSC on May 23, 2014. Details can change; the official notice is the authority. If your product may be recalled, stop and read the notice before deciding what to do. Terms and disclaimer.