3.14*3*20*12= 2260.8 sq inthe heating surface of a fire tube boiler is determined by adding all of the surface of the tubes that have hot water on one side and/or fire or gases of combustion on the other, including the super heater and economizer.
Please be more specific...
A back boiler is a boiler which supplies a central heating and hot water system and is fitted into the recess of a fireplace.
The boiler holds a quantity of water - which is heated by gas flame or electric element. The hot water is pumped around the heating system in an endless loop, gradually cooling as it travels. The cooler water returns to the boiler to be re-heated.
the boiler.
A boiler heats water to a safe heating temperature, often 180 degrees or so, and when a thermostat calls for heat, circulating pumps move the water from the boiler to the radiators where it heats the air surrounding the radiant surface, causing localized convective heating as well as some amount of conductive and radiant heat transfer. others have said: Stratification HEAT goes to the cold.
The heating surface of a boiler is all the surfaces that have boiler water on one side and hot gases of combustion on the other. The surface in contact with the water is the surface that is measured.
Generally, the heat transfer area of reference is considered to be the outside surface area of the tube. Therefore, figure the outside diameter of the tube to get the heat transfer area.
Please be more specific...
a boiler (a device for heating water) that is powered by gas
160-180 Fahrenheit for boiler temp
A back boiler is a boiler which supplies a central heating and hot water system and is fitted into the recess of a fireplace.
The boiler holds a quantity of water - which is heated by gas flame or electric element. The hot water is pumped around the heating system in an endless loop, gradually cooling as it travels. The cooler water returns to the boiler to be re-heated.
A home heating boiler is a woodburning water heating system that can potentially save you money on natural gas. If you cut your own wood and have an ample supply to burn, then a home heating boiler might be a great cost effective option.
the boiler.
fire heating the water stored into the boiler
A boiler heats water to a safe heating temperature, often 180 degrees or so, and when a thermostat calls for heat, circulating pumps move the water from the boiler to the radiators where it heats the air surrounding the radiant surface, causing localized convective heating as well as some amount of conductive and radiant heat transfer. others have said: Stratification HEAT goes to the cold.
In cold weather the water boiler which provides central heating and water heating uses the most energy.