Recommeded between October – March. Only use one per box. Do not place animals on top or in direct contact with the heat pack. Check the over night temperatures (www.bbc.co.uk/weather ) of the postcode your sending from and the destination as they can vary greatly. Do not ship when is night time temperatures are below 5 celsius, even with a heatpack. Consider other potential problems i.e. petrol strikes, expected snows and public holidays etc. If in doubt delay shipping.
