The Lennox Signature furnace includes two variable-speed gas furnaces — the SLP98V and SL280V — and two variable-speed oil furnaces — the SLO185V and the SLO183V. The SLP98V has an AFUE rating of up to 98.2, the SL280V has an AFUE rating of 80, the SLO185V has an AFUE of 85, and the SLO183V has an AFUE of up to 83. Both the SLO185V oil furnace and the SLP98V gas furnace have earned an Energy Star rating, and the SLP98V has been designated as one of the most efficient Energy Star qualified products of 2014. The SLP98V and the SL280V gas furnaces feature iComfort-enabled technology which allows the furnace, when combined with an iComfort Wi-Fi thermostat, to make changes to optimize performance and efficiency. iComfort technology also allows for remote temperature adjustments from a laptop, tablet, or smartphone.
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