Maintenance is a routine service that is done on your mechanical equipment to ensure correct and efficient operation.  Specific types of services are required by Manufacturers to ensure that there is only normal usage and wear on your equipment.  This allows the product warranty on your equipment to remain valid.  Installation warranties may also require a certain type or frequency of maintenance tuneups to ensure the equipment is operating in the manner it was designed and manufactured for.

- It saves energy and that saves you money. 
- It can help avoid costly surprise repairs. 
- Can extend the life of your system. 
- Your system will operate safely and at it's peak efficiency. 
- It will ensure maximum comfort in your home, shop or building.  

As your mechanical equipment is used (right from the installation date), there is wear and tear happening throughout your mechanical systems all the time.  For hydronic systems (including radiant and snow melt), there is a constant flow of fluid passing through valves, pumps, piping, filtration systems, and your boiler, that could start to break down chemically (or debris or turbidity gets into the fluid system).  Other such problems that could easily occur include the boiler going out of "alignment", the natural gas pressures fluctuate (within your system, or as the gas comes in from the meter), valves begin to leak, control sensors go out of "alignment", flue gas condensation may occur, heat exchangers get dirty, things are lying around the mechanical room that just shouldn't be there and knocking equipment out of "balance", and much more.  And of course, you will always have the  "touchy" people who always need to know how everything works but always knocking equipment or control settings out of "balance".