An excellent editorial in this month's magazine highlights the very real likelihood that in the very near future we contractors will be getting used to having to install, service, maintain and repair air conditioning and heat pump units containing flammable gases. OK they may be considered "mildly flammable" by some but, as I've said before, flammable is flammable as far as my insurance underwriters are concerned and my premiums will undoubtedly rise once they cotton to this fact....
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