⭐ Merited by hZti (2)
Of course you could still remove all fans and do the larger and slower inline duct fan method.
This is how I have my m20s heating my house. The same kit is available for s19
Smart thermostat and electric dampers can switch the heat to vent out of the house at set temperature. A M20s, 3 futurebit apollos and 2 pc mining on cpu and gpu are the only things that I have needed to keep my house 67 or warmer in subzero weather.