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we can increase boiler efficiency by recovering the heat which is being carried by flue gases.by incorporating different things like Economizer, Air pre-heater , Super-heater and feed-water heater, we can there ll be notable increase in efficiency of boiler.
The flue is the actual pipe or chimney where the damper is the mechanism that opens and closes the flue
because of heat transfer rate is better
the flue pipe from my boiler runs directly to the hole in the chimney
about 30 million people had the flu but no one had the flue
a direct vent water heater is more fuel efficient (cost's less to operate). aside from that there isn't much difference, aside from not needing a double wall flue through the roof on a standard gas water heater.
Of course If the flue is sized properly
Generally, a direct vent must be next to an outside wall or be connected to a chimney that extends 2-4 feet above roof peak (all gases and fumes from the burner will vent naturally). A power vent is used when the unit is put inside the home in a closet or on an interior wall. It must have venting to an outside wall and must have a blower fan to remove gases from the water heater so they don't back up into the house.
It will not -- It must be wind comming down your flue and putting it out
The typical flue gas temp at the inlet to the air heater is about 650-750 DegF range.
Yes, it is generally recommended to remove the metal tube from the flue in an oil-fired Bock 32 E water heater during maintenance or replacement procedures. This ensures proper inspection and cleaning of the flue system, which is essential for safe and efficient operation. Always consult the manufacturer’s guidelines or a professional technician for specific instructions related to your unit.
There should be no more than six inches between CPVC pipe and the exhaust flue on a water heater. If the CPVC pipe is installed too close it can be a safety issue.
we can increase boiler efficiency by recovering the heat which is being carried by flue gases.by incorporating different things like Economizer, Air pre-heater , Super-heater and feed-water heater, we can there ll be notable increase in efficiency of boiler.
Because the flue is too far for nature to vent the fumes properly as heat rises but in some installations there is not enough PITCH up from the appliance.
The function of the super heater is to increase the temperature of the steam above saturation by utilising the heat from the flue gases.
The recommended steps for gas water heater maintenance include regularly flushing the tank to remove sediment buildup, checking and replacing the anode rod if necessary, inspecting the burner and flue for any blockages, testing the pressure relief valve, and ensuring proper ventilation around the unit. Regular maintenance helps ensure optimal performance and longevity of the water heater.
Sooting in gas water heaters can be caused by a few different factors, such as improper combustion due to a lack of oxygen, a dirty or clogged burner, a malfunctioning gas valve, or a problem with the flue or venting system. Regular maintenance and cleaning of the water heater can help prevent sooting issues.