This brand is from LENNOX INTERNATIONAL and is available only in the USA and Canada through authorized dealers. The A931A units have a 93% energy efficiency rating and they are backed by a good warranty. They have sealed service doors for more quiet operation but they have an aluminum heat exchanger which is not as durable as those with stainless steel. The A952V units are premium units with a 95% efficiency rating and a good warranty. They also have an enclosed burner box and insulated cabinet for sound control. The A97MV furnaces are their ultimate units with a 97% efficiency rating, modulating gas control and durable stainless steel heat exchangers. The warranty on most parts is not as good as some of the other brands. All of the units use more burners with smaller inputs to minimize the combustion noise and are designed to minimize heat exchanger hot spots through their patented EHX technology.
This brand is from LENNOX INTERNATIONAL. They offer basic units with either a 92% (92AF) or 95% (95AF) efficiency rating. The units use aluminized steel heat exchangers instead of stainless steel and the warranty (especially on the heat exchanger) is not as good as many other brands. The 95AF2V model is a premium gas furnace but the warranty is not very good and it is not a multi-position unit.
These furnaces are made by Nordyne for R.E. MICHEL COMPANY (a wholesale distributor). The VG7SC/L and GV7SCD/M models are basic units that feature durable tubular primary heat exchangers. They have stainless steel secondary heat exchangers and SmartLite igniters for durability. They are backed by an overall good warranty for the basic category. The VG7TC is a premium gas furnace but the guarantee on parts other than the heat exchanger is only average when compared to other brands. The brand is only available through dealers in the USA and their network is limited when compared to other brands.
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