EM Series Indirect-fired Duct Furnaces
Efficiencies up to 96%
EMA Series - Inputs from 180,000 to 720,000 Btuh
EMG Series
– Inputs from 90,000 to 360,000 Btuh
EM Series units employ a stainless steel primary heat exchanger
similar to conventional 80% efficient furnaces, but also incorporate
a (recuperative) heat exchanger to extract additional heat from the
flue gases.
Additional heat is transferred to the circulating air stream and flue
gas temperatures are reduced below their dew point temperature.
Water vapor present as a by-product of the combustion process, is
condensed in the recuperative heat exchanger.
This process releases another 972 Btu/lb. of water condensed
(latent heat of vaporization).
