Boiler Maintenance: The Way to Home Safety and Energy Efficiency The dangers of failure to have proper boiler servicing are as follows: The primary hazard is carbon monoxide, a gas which is especially dangerous because it is odorless and tasteless and therefore you cannot smell it although it can be easily detected by fitting a special carbon monoxide alarm. For more info, please go to http://www.rhpboilerrepairsnewcastle.co.uk/.