The condensing the part of the water is from the gas fume. There's a lot of moisture in the flue gas. On a regular old-style boiler they just let the heat exhaust through the stack or chimney and the exhaust flue temperature can be as high as 150 ° C to 200 ° C or even more depending on the size of the boiler. In condensing boilers you're keeping the heat in the boiler longer.
Mar 24 2021 · Thus a condensing boiler will be more efficient if it is coupled with water-based underfloor heating with the flow temperature of 40 to 45 degrees Celsius. Since there is no recommended minimum temperature for the coolant a boiler that is connected to an underfloor heating system can work without special
Feb 08 2016 · The model 40 gives you as much heat at around135°F as the model 23 does at 180°F. The model 99 delivers the same heat at 130°F as the 55 does at 180°F. Also keep in mind that it is really easy to operate an air handler with a high temperature drop on the water side creating nice cool return water. Just what a condensing boiler thrives on.
What Temperature Should a Condensing Boiler Be Set At? The temperature your condensing boiler is set at will have a direct impact on how efficiently it works. For your boiler to perform at its best your central heating should be set to a temperature of between 70C to 75C and your hot water should be set to 60C.
May 01 2017 · Pump seal limitations for condensate pumps such as the Domestic CC CB and CBE style units are rated for 250°F. Since the receiver is vented there is no concern about seal temperature for these Domestic models. The second concern is the pressure available at the pump suction to keep this high temperature water from flashing into steam.
Sep 16 2019 · The same design can be used to provide lower return temperatures to the hydronic heating condensing boilers. An example of a typical hot water AHU coil piping is shown below. This example will use a water coil requiring 50 GPM with a supply
Aug 14 2017 · Notice the water temperature entering the boiler is now 130°. Given the same 20-gpm flow rate through the boiler the temperature rise across the boiler will only be 5.1° and its outlet temperature will be 135.4°. This higher water temperature now enters the hot port of
Each kilogram of condensate not returned to the boiler feedtank must be replaced by 1 kg of cold make-up water (10°C) that must be heated to the condensate temperature of 90°C. (T = 80°C). Calculate the heat required to increase the temperature of 1 kg of cold make-up water by 80°C by using Equation 2.1.4.