Confirm combustion appliance operation

  1. Mass Save Contractors must perform a carbon monoxide test and document the results, stating that the complete combustion appliance application was performed and that a CO alarm was also placed. The test conducted must be as per BPI Technical Standards for the Building Analyst Professional. 
  2. Mass Save Contractor is also responsible for carrying out the combustion safety test and providing appropriate documentation before leaving the worksite. The test performed should again be as per the BPI Technical Standards for the Building Analyst Professional. 
  3. Not just anyone can perform the test, as it can be performed by the following individuals as determined by the Program Administrator: 
  4. The tester should be an individual with the appropriate BPI certification. 
  5. Or by an employee of a BPI Accredited company. 
  6. Or someone who has other credentials (like combustion safety module supplementing Boot Camp Authorization), that are approved by Mass Save.   
  1. The tests conducted, should be documented and reported appropriately by the Mass Save Contractor. 
  2. In case of the combustion safety test failure as per the BPI Technical Standards for the Building Analyst Professional, the Mass Save Contractor is responsible for notifying the occupants and the program immediately. 


  • The tests may not be required in the following cases: 
    • Exhaust Port: The CO test depends upon the availability of the exhaust port, so in the case of direct vent or power vented appliances, there is no need for a test.  
    • Close Space: An isolated mechanical room with combustion air from the outside (from a vented attic or crawlspace), might not require its equipment to be tested.  

Note: Open space basement require complete testing of its equipment. 

  • In the case of the CUSTOMER residing in a multi-unit dwelling with the residents not being served by the Mass Save program, the following actions need to be taken: 
  •  The equipment of the residents does not need to be tested. 
  •  Instead of a test, a visual inspection is still required to identify potential health and safety concerns.    
  • In case there being any potential concerns, the building owner and the customer must be made aware. 
  • In the case of the resident’s equipment adversely affecting the test result, this too must be disclosed to the building owner and the customer.

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