What is NATE Certification?
…test focuses on fundamental job knowledge and skills needed to enter the HVACR industry. It is a $50 online test that includes a study guide. However, passing this exam only…
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Refrigerant Certification – Which do I Need?
…follows: R-12, R-22, R-114, R-500, and R-502. Type 3 608 Certification – This covers low pressure appliances with some example refrigerants being R-11, R-113, and R-123. Universal Certification – Just…
Are Solid Refrigerants the Future of Refrigerants?
…AC units Heat pumps Here’s a video explaining how scientists expect this concept to work: https://www.youtube.com/watch?v=krq_Hj7xJAg 2. Magnetic refrigeration Magnetic cooling uses the magnetocaloric effect and is common for attaining…
What Requirements Are There to Work in HVACR?
…core and specialty tests. These are multiple-choice and knowledge-based tests. Technicians can obtain certification in one or more specialty areas such as air conditioning, heat pumps, and gas furnaces. The…
US Stalling on the Kigali Amendment
…CFC refrigerants like R-12 and R-22 the Kigali Amendment has set it’s sights on the very popular HFC refrigerants such as R-410A, R-404A, R-125, R-134a, and many more. While the…
R-1234yf Refrigerant Fact & Info Sheet
…for specific type.) Boiling Point: −29°C (−22°F) Critical Temperature: 95°C (203°F) Critical Pressure: 34 bar(a) Auto ignition Temperature: 405°C (761°F) Manufacturers: Honeywell, Chemours, and Arkema Manufacturing Facilities: Texas, Louisiana, &…
California Hosting Public Workshop on Phasing Out HFC Refrigerants
…the leaking and venting of Chlorine into the atmosphere. The Chlorine that these refrigerants contained actively damaged the Ozone layer. However, HFC refrigerants such as R-134a, R-410A, and R-404A do…
Is R-1234yf Toxic? New Research on the Matter
…each ice core (Devon Ice Cap, 110 μg m−2 (2005–2014); Mt. Oxford icefield, 127 μg m−2 (2007–2016)). Another model predicts annual TFA deposition of 42.3 μg m−2 to the area including the Devon Ice Cap (Wang et al., 2018). This…
What are the Best Ductless Air Conditioners? – A Buyer’s Guide
…multifamily housing or as retrofit add-ons to houses with “non-ducted” heating systems, such as hydronic (hot water heat), radiant panels, and space heaters (wood, kerosene, propane). They can also be…
RefrigerantHQ Third Quarter Update
Hello ladies and gentlemen. It’s been a while since we last updated here at RefrigerantHQ and there are a few reasons for that, but I won’t get into every one….
R-134a Prices Going Up & Up in December 2017
…increase at $100.00. We now have an increase of $1.00 per pound. We’re looking at a price of $130.00 or an increase of thirty percent in one day. That is…
Refrigerant Licensing Guide
…pressure and very high pressure appliances. Some example high pressure refrigerants are as follows: R-12, R-22, R-114, R-500, and R-502. Also note that this type 2 certification will allow you…
Thirteen Senators Pushing for Kigali Amendment
…‘Economic Impacts of US Ratification of the Kigali Amendment,’ was funded and sponsored by two groups: The Alliance for Responsible Atmospheric Policy and the Air-Conditioning, Heating, and Refrigeration Institute (AHRI)….
Product Review: Robinair RG6 Portable Refrigerant Recovery Machine
…also has a properly positioned fan, which cools the compressor coils and condenser at high temperatures. Pros https://www.youtube.com/watch?v=gU_aI2v0bIE&t=38s Let’s start with the performance. When reviewing this factor, I usually look…
Servicing 1234yf Refrigerant
…two websites that I’m going to recommend here. The first is called 1234facts.com and goes over all frequently asked questions, fact sheets, and anything else you’d like to know about…
Window Air Conditioner Buyer’s Guide
…and the preferred BTU size. 550-700 Square Feet – Apartment or Condo Living – 14,000 BTUs 700-1,000 Square Feet – Apartment or Condo Living – 18,000 BTUs 1,000 to 1,200…
R-513A Refrigerant Fact & Info Sheet
…toxicity (A1) Flammability Levels: Class 1 – No Flame Propagation Lubricant Required: POE Boiling Point: -29.2°C ( -20.56 °F) Critical Temperature: 96.5 ℃ (205.7 °F) Critical Pressure: 37.66 bar (546.2…
R-448A Refrigerant Fact & Info Sheet
…(C) -51 -46.11 -39.9 -39.94 1 -48.6 -44.78 -37.5 -38.61 2 -46.2 -43.44 -35.2 -37.33 3 -44 -42.22 -32.9 -36.06 4 -41.9 -41.06 -30.8 -34.89 5 -39.8 -39.89 -28.8 -33.78…
Product Review: Honeywell MN12CES, MN12CESWW, & MN12CESBB Portable Air Conditioner
…Conditioner. (Also the MN12CESWW and the MN12CESBB) Honeywell, as you’ll read or you already know, is a large company that sells quality products. We’ll talk about them a bit later. The…
How Much Do Ductless Mini Split Air Conditioners Cost?
…three-hundred square foot room you will need a nine-thousand BTU system. (300 SF * 30 BTU = 9,000) Cost Alright folks, so now that we know what size of air…