The 40-year HVAC veteran uses that philosophy in his dealings with the installation and service of dual-fuel heat pump systems, combining an outdoor heat pump and indoor furnace, which he describes as "not always having a good reputation."
"Homeowners often do not like the cooler air or cold air during the defrost cycle," Porter said. "Installers and service technicians do not like all those wires, and manufacturers make things confusing, hard to understand, and enclose volumes of instructions.