Last year, I bought my first combustion analyzer. I had just started my own company and felt the additional weight of responsibility to sit down and determine the best way to verify that the furnaces I was servicing were working safely. In the past, the most extensive testing I had done was a visual inspection […]

Whether you love it or hate it, leak detection is one of those staples of HVAC, and the stakes are pretty high. Leaks that go undetected can also cost the customer quite a bit in refrigerant over time, especially with the rising prices of R-22 and R-410A. Worst of all, we could end up replacing […]

If you are primarily a residential technician working on equipment under 5 tons, there are many similarities between the systems you are used to and 5-20 ton rooftop units common to the light commercial market. There are MANY additional things to consider on larger equipment, and here are just a few. Wash Fresh Air Filters […]