| Boilers are one of the oldest forms of heating. For | | | | Step up/down systems are slightly more |
| large commercial HVAC heating, boilers are still | | | | advanced in that they control furnace levels. |
| one of the best options available. The heat | | | | Another way to modify firing is through oxygen |
| generated by boilers is also reported to be | | | | trim control. This uses a flue to trim excess air |
| pleasant. A boiler brings an even heat unlike the | | | | when the boiler is not operating full blast. Excess |
| drafty heat of a heat pump. Many powerful | | | | air regulation control is like a supercharger that |
| Denver HVAC systems use boilers for even | | | | maintains a positive air flow for maximum |
| heating across large stores, warehouses or hotels. | | | | combustion. |
| Gas and oil boilers are available. There is little | | | | More advanced controls combine air and fuel |
| difference in performance from different heat | | | | limiters to add safety and increase fuel efficiency |
| sources, as a boiler is just a pressure system for | | | | when stepping up or down on heating. Drum level |
| heating water and transferring that heat. There | | | | control makes dry fire systems a little safer by |
| are many different options for boilers; there are | | | | monitoring drum water levels. |
| low and high pressure systems, steam and hot | | | | Consult both the boiler manufacturer and your |
| water, but all use a system to loop warm water | | | | local HVAC contractor to determine which |
| for heat. Boiler repair is relatively advanced work, | | | | controls are appropriate for you. |
| so be sure to use a qualified Denver furnace | | | | All boilers need a reliable water source. This may |
| repair company. High performance HVAC boilers | | | | be connected to the city system or a dedicated |
| usually use steam which uses its own pressure to | | | | well pump. It is important to maintain a steady |
| circulate heat in the system. | | | | water supply to keep boiler water levels at safe |
| Boiler control systems have evolved over time. | | | | limits. Hot water boiler systems need the system |
| Older Colorado buildings used a dry fired boiler | | | | to be full of water. Steam systems need t |
| which is dangerous if the water is not kept at | | | | regulate water so there is only steam in the |
| correct levels. More advanced digital control and | | | | mains, not water. In a cold city like Denver HVAC |
| staging systems are used in advanced HVAC | | | | systems should have a ball valve between the |
| systems. Residential boilers use just an aqua-stat, | | | | water source and the boiler to stop major leaks. |
| while commercial boilers use complex local controls | | | | Colorado code requires all HVAC systems to have |
| built into the system. Multi-Boiler staging uses | | | | a back flow preventer keep the water supply |
| several boilers according to demand. Cast iron | | | | from being contaminated by the boiler. A pressure |
| boilers with solid state controls are good choices | | | | reducer valve is also needed to make sure the |
| that measure the change in energy and adjust | | | | heating system does not fail over a certain PSI. If |
| boiler use accordingly. Modulating Control limits fuel | | | | you are worried that your system is not safe, |
| use by demand. | | | | consider calling in a Denver heating repair |
| An older system rarely used on high performance | | | | contractor to inspect your HVAC for safety and |
| Denver HVAC is simple on-off boiler fire control. | | | | local regulations. |