When choosing your heat source such as a furnace or baseboard heater, consider the losses in heat distribution method. Circulation of hot air through ducts and room convection can increase your heat loss. Baseboard heaters sitting under windows are especially inefficient, as heat is often lost through thermal breaks and air gaps.
Going with a programmable or smart thermostat may help reduce your energy bills, but what's the point if your heat distribution is inefficient.
This case study tackles the Hybridization of gas and electrical sources, with a discussion on Beneficial Electrification, and finding on capital cost, energy savings and reduction of GHG emissions vis-a-vis various technologies. With electrical resistance as a main heating distribution method, a home can pair this with standby forced-air using an Air Source Heat Pump (ASHP).