CPSC Recall in 2007: Laars Heating Systems Recalls Gas Boilers and Water Heaters Due to Carbon Monoxide Poisoning Hazard

Updated on March 25, 2026.

See the recall details below. You can also see similar information for other consumer product recalls in 2007.

Data Source: CPSC.

Recall Number: 07-535

Date: March 18, 2007

Product Name: Laars 9600 CB Condensing Boilers & 9600 HWG Condensing Water Heaters

Recall Description:

In cooperation with the U.S. Consumer Product Safety Commission (CPSC), Laars Heating Systems Co., of Rochester, N.H., is voluntarily recalling about 2,100 Laars 9600 CB Condensing Boilers & 9600 HWG Condensing Water Heaters. 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. Name of Product: Laars 9600 CB Condensing Boilers & 9600 HWG Condensing Water HeatersUnits: About 2,100Manufacturer: Laars Heating Systems Co., of Rochester, N.H.Hazard: 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.Incidents/Injuries: Laars has received three reports of cracked vent components. No injuries have been reported.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.ModelInput (Btu/h)Gas Boilers:Water Heaters:CB 150150,000CB 175175,000CB 200200,000HWG 150150,000HWG 175175,000HWG 200200,000Sold at: Plumbing and heating wholesalers and representatives nationwide from November 1998 through February 2007 for between $6,500 and $7,300.Manufactured in: United StatesRemedy: 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.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.

Hazard Description:

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.

Consumer Action:

Remedy Type:

Repair

Units: About 2,100

Incidents:

Laars has received three reports of cracked vent components. No injuries have been reported.

Sold At:

Plumbing and heating wholesalers and representatives nationwide from November 1998 through February 2007 for between $6,500 and $7,300.

Manufactured In:

United States