convertTemp (tempInC, unit) {
		return unit === "imperial" ? tempInC * 1.8 + 32 : tempInC;
	}
Convert temp (from degrees C) into imperial or metric unit depending on
your config
@param {number} tempInC the temperature in celsius you want to convert
@param {string} unit can be 'imperial' or 'metric'
@returns {number} the converted temperature