Day and Night VS 90 92.1% Efficient Furnace
with a Variable Speed Blower Motor and a Two-Stage Gas Valve

The Day and Night® brand came out with the Constant ComfortTM line of furnaces which range in efficiencies from 92.1% all the way to 95% Efficient. The Day and Night® VS 90 furnace is a 92.1% Energy-Efficient furnace with a Variable Speed Blower Motor and a Two-Stage Gas Valve.

Interested in a 95% Efficient Furnace?
Consistent Comfort. This furnace has a special gas valve which modulates between high fire and low fire depending on the temperature change needed to reach the desired comfort level.
Welcome quiet. The variable-speed blower motor operates at a much quieter level due to being perfectly mounted and well-insulated. Also, leave your fan running constantly at a low speed for improved indoor air quality.