This brand is a part of UNITARY PRODUCTS GROUP which is owned by JOHNSON CONTROLS. The TG9S units are part of their CLIMASURE series and are basic single stage units with a 95% efficiency that are backed by a good warranty. The LX series TM9Y premium units are multi-position models for flexibility in installation. The LP9C models are ultimate units with up to 98% efficiency. The brand has all of the standard features and is backed by a good warranty but is only available through factory approved dealers in the USA and Canada.
This brand is manufactured by NORDYNE and is available through their dealer network in the USA and Canada. It has their "SMART START" control board to extend the life of the igniter and is backed by the best warranty in the industry. The MGC2SC/MGC2SL units have a 92% efficiency rating and are a compact unit that will fit virtually anywhere. They have a durable tubular primary heat exchanger and a stainless steel secondary heat exchanger. The PGC2TC/PGC2TL units feature two stages of heating and a variable speed blower motor for efficient and quiet operation. The PGC2MQ models are the ultimate units with their iQ drive system to maximize efficiency all year long.
The GAS EC-EN models are basic high efficiency gas furnaces. The brand is made in Spain and is sold in Europe but their website is not much help and does not have a stated guarantee for their products.
This brand is made in Canada by WOLF STEEL LIMITED and is sold throughout North America but they have a limited dealer network in the USA. The 9500 series units are basic multi-position units with an efficiency rating of 95%. They offer an optional variable speed motor and are backed by a very good warranty. The ULTIMATE 9700 series models are premium units with communicating ability but are for upflow installations only. The guarantee in the premium category is not as good as some of the other brands. Both models have a durable tubular stainless steel/titanium heat exchanger.
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