CAZ Testing

If your home contains natural-draft appliances [such as a natural-draft furnace, or water heater] located within the conditioned space of your home, then combustion safety testing must be conducted to ensure safety and indoor air quality. Diversified Energy’s BPI-certified technicians are trained to properly conduct advanced CAZ testing. We not only provide you with the results of your CAZ but actionable options for how to correct any problems.

Don’t put the health and safety of your family at risk, contact us today to schedule your CAZ test.

CAZ testing is a series of proven checks to systematically assess combustion appliance safety

Open-combustion heating equipment located within the conditioned space of your home has the potential to allow Carbon Monoxide and other poisonous combustion by-products to enter your indoor environment. A CAZ [Combustion Appliance Zone] test is a proven and conclusive method of determining whether this could happen under certain “worst-case” or natural conditions. A CAZ test should always be performed if air sealing is performed on your home and you have open combustion appliances located within the conditioned space.

These Combustion Appliance Zone (CAZ) tests are designed to ensure that flammable fuels or combustion gases are not intruding into the home’s living spaces. CAZ testing also assures homeowners that their appliances are functioning in a safe and efficient manner. This series of tests is mandatory for your family’s safety and is required by most utility companies for any home with combustion appliances located in conditioned interior living spaces. The series of CAZ tests covers these five categories: gas leak testing, depressurization testing, carbon monoxide testing, spillage testing, and draft testing.

Our BPI-certified technicians are trained to properly perform CAZ testing and understand the unique challenges we face in our Gulf South climate. CAZ testing can be included in our 360 Energy Audit and/or conducted in combination with any of our advanced diagnostic testing services. Contact us today to schedule your CAZ test.

What If My Home Fails A CAZ Test?

If your home/combustion appliance zone fails our CAZ tests, then we will recommend the corrective measures you will need to take to remedy the problems. The corrective measures can include: Adding direct venting of the combustion appliance zone. Air sealing to separate the appliance combustion zone from the rest of the conditioned space in your house. Or, in the case of very old equipment, replacement of the equipment.

What Is A CAZ Test?

Open-combustion heating equipment located within the conditioned space of your home has the potential to allow Carbon Monoxide and other poisonous combustion by-products to enter your indoor environment. A CAZ [Combustion Appliance Zone] test is a proven and conclusive method of determining whether this could happen under certain “worst-case” or natural conditions. A CAZ test should always be performed if air sealing is performed on your home and you have open combustion appliances located within the conditioned space.

These Combustion Appliance Zone (CAZ) tests are designed to ensure that flammable fuels or combustion gases are not intruding into the home’s living spaces. CAZ testing also assures homeowners that their appliances are functioning in a safe and efficient manner. This series of tests is mandatory for your family’s safety and is required by most utility companies for any home with combustion appliances located in conditioned interior living spaces. The series of CAZ tests covers these five categories: gas leak testing, depressurization testing, carbon monoxide testing, spillage testing, and draft testing.

Our BPI-certified technicians are trained to properly perform CAZ testing and understand the unique challenges we face in our Gulf South climate. CAZ testing can be included in our 360 Energy Audit and/or conducted in combination with any of our advanced diagnostic testing services. Contact us today to schedule your CAZ test.

Benefits Of Having A CAZ Test

The CAZ [Combustion Appliance Zone] test is a diagnostic tool used to assess the safety and performance of a home’s heating and combustion appliances, such as furnaces, boilers, water heaters, and fireplaces.

The benefits of having a CAZ test conducted on a home include:

Improved safety: A CAZ test helps to identify potential safety hazards associated with heating and combustion appliances, such as carbon monoxide (CO) leaks, insufficient combustion air, and improper venting. By identifying and addressing these issues, homeowners can improve the safety of their heating and combustion appliances and reduce the risk of fires, explosions, and carbon monoxide poisoning.

Improved energy efficiency: A CAZ test helps to identify opportunities for improving the energy efficiency of heating and combustion appliances. By addressing issues such as improper ventilation and insufficient combustion air, homeowners can improve the efficiency of their appliances and reduce energy costs.

Enhanced indoor air quality: A CAZ test helps to identify sources of indoor air pollution, such as back-drafting and spillage from heating and combustion appliances. By addressing these issues, homeowners can improve indoor air quality and reduce the risk of respiratory problems and other health issues.

Improved appliance performance: A CAZ test helps to identify performance issues with heating and combustion appliances, such as inefficiencies, malfunctions, and improper settings. By addressing these issues, homeowners can improve the performance of their appliances and ensure that they operate more effectively and efficiently.

Increased lifespan of appliances: A CAZ test helps to identify potential problems that can shorten the lifespan of heating and combustion appliances, such as corrosion and inadequate maintenance. By addressing these issues, homeowners can increase the lifespan of their appliances and reduce the need for costly repairs and replacements.

Overall, a CAZ test is a valuable tool for improving the safety, energy efficiency, indoor air quality, performance, and lifespan of a home’s heating and combustion appliances. By conducting a CAZ test, homeowners can ensure that their appliances are functioning properly and safely, and can take steps to improve their overall living environment.

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Blake CulpepperBlake Culpepper
18:50 09 Jan 24
Jeff and his team were very informative and helped me to understand the way my AC and insulation were contributing to moisture issues I was having.... Through an educational approach, we addressed the most pressing issues and will re-evaluate progress over time. We added spray foam over a previous spray foam job that was inadequately done, corrected damaged duct work under my house with insulation, and replaced an oversized AC unit, all of which were contributing to excess moisture and wasted energy costs in my home.Jeff and team were also very friendly and professional, which was refreshing when I was being oversold and pressured by another company. I would certainly recommend Diversified Air to friends and family.read more
TwiceonsondaysTwiceonsondays
14:31 04 Nov 23
Diversified Energy did a great job at my home for weatherization. The crew was extremely professional and curious. I would highly recommend this... company.read more
Gary ClementsGary Clements
17:05 07 Oct 23
Diversified Energy, from its owner, Jeff Haag, to its team led by Nikki, were thorough, competent, professional, hard-working and cost-effective. We... had our attic ductwork sealed and then the entire attic floor insulated with blown-in cellulose fiber, covered completely by sheets of the cutting edge technology of QV Platinum PCM (Phase Change Material) [Diversified Energy is the sole provider of this technology in the metro area]. Our A/C system works less now, even with continuing heat. We recommend Diversified Energy for upgrading your home’s energy efficiency!!read more
Jason RiggsJason Riggs
11:26 05 Oct 23
Jeff Haag and Diversified Energy went above and beyond while consulting with my client about insulation and home efficiency. He is very... knowledgeable and has insulated multiple homes for me, always with good results. Very responsive too.read more
Gena McKenzieGena McKenzie
14:06 13 Sep 23
sandy andrepontsandy andrepont
16:04 31 May 23
Nikki and her team did a wonderful in my home. They sprayed insulation, sealed air ducts and attic and much more. Nikki explained everything that was... being done, very professional and respectful of me and my home. I highly recommend them!read more
Rudy LinhubRudy Linhub
15:20 15 May 23
When only the best customer service and installation will do. They foam insulated my attic and installed an American Standard heat pump. Quick, easy... and in budget. A rare business find.Thanks Jeff!read more
Jenna DuplechienJenna Duplechien
21:38 11 May 23
Niki Aguillard and her crew came out to my house and did a fantastic job! They texted me what time they would arrive and they were on time. They made... sure every crack was sealed in my house and even put door sliders on the doors to keep the air from flowing in. They completely insulated the attic. They were very friendly and kind overall did an amazing job I’m very pleased with how they went over and beyond to ease every concern I had and I really appreciate their hard work. Would definitely recommend Diversified Energy “Plug into Comfort”read more
Joel HenschenJoel Henschen
22:57 13 Mar 23
We had a great experience working with Diversified Energy. They were always willing to communicate and take care of any issue that popped up. One... of the best and most honest contractors I have dealt with. I will definitely use them again in the future. Thank you!read more
Dolores FryouxDolores Fryoux
21:37 28 Oct 22
Niki and Damon did a great job today!! They really answered All my questions and concerns. I am very happy with the whole process and highly... recommend this company.read more
Avis JamesAvis James
18:27 13 Oct 22
Nikki and her crew sealed in the attic, around doors and around plumbing pipes. Then they returned to add insulation. Very professional. Great job.
Rebecca WhitakerRebecca Whitaker
00:08 25 Sep 22
Blake came out and did an energy audit of my place of residence. He was very gracious and professional. He respected my request for him to remove his... shoes and was patient enough to answer my questions. Thank you, Blake!read more
Darrin ClarkDarrin Clark
18:10 27 Jul 22
Niki crew came and explained the job details and performed very professional and in a timely manner and I was satisfied with the whole process and... would recommend to anyone that is in need of the services they provideread more
Dave ODave O
15:55 16 Oct 21
First off these are some friendly and professional people! They came in to our home and had nothing but respect and explained things in a way that... was more family/friend based than technical. BIG shout out to Mike and Ryan for the amazing help and work! They tested the house and did all the checks as well as made sure we had stuff in place. They hooked us up with a great light package that should help our energy use as well as lighting needs. Everything is top notch and amazing customer service!read more
Summer CarterSummer Carter
20:31 18 Mar 19
I had such a great experience with Jack, Shamone, and Chad! They were extremely friendly and very professional! Jack explained what would take place... the morning of my appointment and answered all of my questions! They were all very understanding of my very noisy three year old as well! Thank you again you guys for such a pleasurable experience!read more
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Diversified Energy is fully insured and licensed - State Licensing Board for Contractors - License number: 885628

Diversified Energy Is A Proud Member Of The Greater New Orleans Home Builders Association
Diversified Energy Is A BPI Certified Contractor
Diversified Energy Is A Proud Member Of The Spray Polyurethane Foam Alliance
Diversified Energy Is Proud To Be An Energy Star Partner