If the AC in your car or your home seems slow and inefficient, you might be tempted to pick up one of the DIY refrigerant replacement kits now being sold. But the Heating, Refrigeration and Air Conditioning Institute of Canada (HRAI) wants you think twice before you do. The national association, which represents some 1,300 heating, ventilation, air conditioning and refrigeration manufacturers, wholesalers and contractors, has just launched an awareness campaign that questions the safety and environmental friendliness of DIY kits that contain flammable hydrocarbon refrigerants.
According to HRAI, the hydrocarbon refrigerants used are made up of a mixture of propane and isobutene, and can, they suggest, cause fires if vapors came into contact with combustion flames or spark igniters.
Further, the association says that manufacturers of air conditioning systems don’t use hydrocarbon refrigerants in existing air conditioning systems because they’re not approved for this use, and that using them could void the manufacturer’s warranty.
Then there’s the question of leakage and disposal.The makers of one of these kits, Red Tek, sold at Canadian Tire, instructs users that older systems must have refrigerants removed by a qualified professional before the kit can be used. But what about the DIY’er who skips that step, and inadvertently leaks the fluid? You do not want to breathe this stuff, touch it or send it into the sewer system. It’s worth noting that on Canadian Tire’s site, four out of five consumer reviews of Red Tek’s 22A replacement and retrofit kit complained of leaks.
Look for more on this story coming up. In the meantime, if you’re at all unsure about how to safely use these products, get a qualified pro to do it for you. Or do as we’ve done – commit to an AC-free summer in the car this year. (Check back with me on August to see how I’ve done on this one!)
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