If your home has an air source heat pump you can use the thermostat in your home it to control the temperature in the same way you'd use a thermostat for a traditional boiler.
You can use the radiators in your home in the same way you would with a traditional boiler too.
It's important to remember not to turn off your air source heat pump. They are designed to always stay on, and they won't run as efficiently if you turn them off.