Can I use any custom commands for Alexa to control the temperature in my home?

For the so called “custom skills”, one of the most important things is to know how to make (or better: invoke) a particular, expected request. It is done by using invocation name “my boiler” and one of the supported nouns listed below (that must remain unique):

• Installation name
• temperature (meaning the desired temperature value)
• room name
• circuit name
• duration (meaning the desired duration time)

as well as the set verb:

• Set
• Change,

as proposed below. Available queries and commands for a heating system without ViCare Smart Climate devices:

• "What is the current outside temperature at Installation name?"
• "What is the outside temperature at Installation name?"
• "What temperature is outside at Installation name?"
• "Tell me the outside temperature at Installation name?"
• "What is the temperature outside at Installation name?"
• "What is the current temperature outside at Installation name?"
• "What is the current outside temperature?"
• "What is the outside temperature?"
• "What temperature is outside?"
• "Tell me outside temperature?"
• "What is the temperature outside?"
• "What is the current temperature outside?”
• "set verb temperature to temperature degrees on circuit name"
• "set verb temperature to temperature on circuit number"
• "set verb temperature on circuit name to temperature degrees"
• "set verb temperature on circuit name to temperature"
• "set verb temperature on circuit name"
• "set verb temperature to temperature on circuit name"
• "What is the current temperature on circuit name?"
• "What is the current temperature in circuit name?"
• "What is the target temperature on circuit name?"
• "What is the target temperature in circuit name?"
• "What is the target temperature?"

Available queries and commands with active ViCare Smart Climate devices:

• "set verb temperature to temperature in room name"
• "set verb temperature to temperature degrees in room name"
• "set verb temperature in room name to temperature"
• "set verb temperature in room name to temperature degrees"
• "set verb temperature in room name to temperature degrees for duration"
• "set verb temperature in room name to temperature for duration"
• "set verb temperature to temperature degrees in room name for duration"
• "set verb temperature to temperature in room name for duration"
• "set verb temperature in room name"
• "Deactivate manual mode in room name"
• "Stop manual mode in room name"
• "Return to heating schedule in room name"
• "Return to heating schedule"
• "Stop manual mode"
• "Deactivate manual mode"
• "What is the target room temperature in room name?"
• "What is the target temperature in room name?"
• "What is the current room temperature in room name?"
• "What temperature is in room name?"
• "What is the current temperature in room name?"
• "What is the current temperature?"

Activated Domestic Hot Water boost (if functionality is available for given heating device):

• "Start domestic hot water boost"
• "Switch on domestic hot water boost"