Church Buildings need to be heated and cooled. Ideally, the Church should have automated control systems for this. Here are some ideas:

• HVAC Programmable Thermostat
• External Lighting Control
• Security System

When the building is occupied, the HVAC should set the temperature to something comfortable for the congregation. When a meeting is scheduled, then the Security System should be automatically disarmed to avoid false incidents. And the lights outside should be on at night to show the Church.