Updated May 2024.
Combustion analysis is crucial for the proper operation and control of any combustion process. Combustion occurs when fuels react with oxygen to produce heat. When combustion is harnessed to provide useable heat, the goal is to retrieve energy from the fuel in the most efficient manner possible. This means burning the fuel as completely as possible with the least amount of loss.
Recovering refrigerant from an AC system is an essential part of a service technician’s job. That’s why refrigerant recovery systems are essential HVAC tools. These systems must meet multiple necessary, but often conflicting requirements:
This review will focus on the Klein Tradesman Pro Backpack 55421BP-14, a tool bag designed for electricians, telecom technicians, and other tradesmen.
Overview of the Klein 55485 Tool Master Backpack 
Klein Tools’ Tradesman Pro Tool Master Backpack sits at the apex of Klein’s tool backpack product line. The Tool Master backpack boasts many of the same features common across the Pro Tool series:
Carbon monoxide (CO) is an odorless, colorless, and toxic gas which is a byproduct of incomplete combustion. For HVAC technicians who work on combustion equipment like furnaces, water heaters, and boilers as part of their job, CO is occupational hazard. CO can also threaten the health and safety of people who live and work near combustion equipment which emits excessive amounts of the gas into the ambient air.
Bacharach is well-known manufacturer of HVAC equipment, including combustion analyzers.
Updated April 2024.
All HVAC service techs remember that Testo has started a “Smart Probe Revolution” in 2016. Their products became very popular, especially the diagnostic kit 0563-0002 that came with two pressure probes and two temperature clamps. It was a great tool, but for diagnostic purposes only, and the wireless range was relatively short – about 35 to 50 feet.
What does an HVAC Service Tech expect from good modern test equipment?
Digital processing for increased accuracy and wireless communication to either send data or to view data on a smart device. This is an ideal setup for analyzing HVAC systems both residential and commercial. 
Hello. Today I want to talk about the all new Wohler A 450 Wireless Combustion Analyzer. 
For those who are unaware, Wohler is a German manufacturer that started in 1932 as chimney brush making factory in Berlin. In 1965 they started developing and producing their first measuring devices. Wohler may be a big player in the chimney sweeping business, their commitment to developing great combustion analyzers cannot be questioned.
