Sep 27, 2017 · Single-Zone vs. Multi-Zone Ductless System – What’s the Difference? Sep 27, 2017 Ductless systems offer an energy-efficient and cost-effective way to maintain comfortable temperatures in your Parkland, Florida, home. www.commercial.carrier.com/commercial/hvac/technical_literature/1,3063,CLI1_DIV12_ETI9039_MID4442,00.html. With Trane, I'll have a look,should have something lying around.Carrier Furnace Installation Costs. For a 2,000 square foot home you would w. ant to install a Carrier furnace with 100,000 BTU capability which on average would cost around $3,980 to install.If you were to install a Carrier Performance 90 59TP6 gas furnace you could expect to pay around $1,644 for the unit alone. Mar 04, 2014 · This keeps the fan running 24/7, regardless of the setting of the heating or cooling. Pros. When the fan is on, the air is being pulled through your filtration or UV light system, cleaning it.