Whether or not a furnace and AC work together depends upon your HVAC's make and model. Some HVACS are built to switch on the AC when the furnace cannot provide sufficient heat.
When the AC and furnace work together, energy consumption increases naturally. Hence it would be best not to use it for long hours. Top heating services elk grove can configure HVAC settings to reduce energy consumption.
Climate Solutions LLC is a family-owned HVAC service provider that focuses on delivering the best heating services in Elk Grove, CA.