• ### How to Estimate the Right Size of Gas Boilers for the ...

Dec 27 2018 · Multiply 8 by 12 and then add 3 for a total of 99 inches. To calculate the square inches of the room multiply 120 by 99 for a total of 11880 square inches. Record this number.

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• Our BTU calculator for cast iron radiators radiators makes it quick and easy to measure the amount of heat required for any specific room in your house in terms of British thermal units (BTUs). Our Cast Iron radiator BTU will work out how much energy and what sized radiator you will need based on the measurements that you provide.

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• ### How to Calculate Space Heating Requirements

Calculate the area of the windows in m2 and subtract this from the wall area and measure and calculate in m2 the ceiling and floor areas. With the above carried out we can start to calculate the loss of heat through the material of the space e.g. Walls floor windows and roof or ceiling.

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• ### How to Calculate Boiler Steam Flows | Hunker

Use boiler horsepower to calculate steam flow. Boiler horsepower is not related to mechanical horsepower. It is a boiler industry rating that predicates the amount of saturated steam a boiler will generate starting with water at 212 degrees Fahrenheit and 0 pounds per square inch gauge (psig--meaning atmospheric pressure) and ending with steam at 212 F and 0 psig.

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• ### Unit Conversion--How to Calculate Boiler Horsepower

1 horsepower (boiler)= 33445.6 Btu (mean)/hr= 140671.6 calorie/min (thermo)= 140469.4 calorie (mean)/min= 140742.3 calorie (20)/min 9.8095x1010 erg/sec= 434107 foot-pound-force/min= 13.1548 horsepower (mech)= 13.1495 horsepower (electric)= 13.3372 horsepower (metric)= 13.1487 horsepower (water)= 9809.5 joule/sec= 9.8095 kilowatt

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• ### Boiler Size Calculator | Hometree

Feb 17 2020 · You might have a boiler you would like in mind or you might have been recommended a particular boiler. However we recommend that you let the boiler calculator determine the correct boiler to suit your home. The considers the significant elements like the number of rooms in your home and your hot water requirements. flue

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• ### HOW TO CALCULATE THE CORRECT BTUS FOR YOUR ROOM

Jul 21 2017 · · Calculate the cubic volume of your room in feet or meters. This is calculated by multiplying the height width and length of your room. · After that multiply the figure by the following values for a rough estimate of your suggested BTU.

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• ### Boiler Formulas | Johnston Boiler | Top Quality Boiler ...

A scotch marine boiler has a furnace volume of 45.5 cu. ft. if 3825.2 cu. ft. of natural gas is burned per hour and each contains 1100 Btu what is the rate of combustion? RC = H / (Vf * t) Return Condensate Percentage in Feedwater

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• ### Boiler Sizing Calculators | Powerhouse

To do so we divide the BTU/hour by a constant of 33475. This constant represents water being converted to steam which is 34.5 pounds of water multiplied by 970.3 BTU/lb or latent energy. For this calculation you will enter the BTU/hr of your operation along with the efficiency of your boiler.

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• ### How to Calculate Heating Load | eHow

You can then use the information to determine the size and rating of the air conditioning unit you need to cool the room or home. Step 1 Calculate the Area BTU using the formula: Area BTU =

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• ### Boiler Size Calculation Industrial Boiler

Jul 04 2017 · foran accurate boiler size calculator use the link in the info box at the. Sizing Guide for Domestic Volume Water Heaters. equipment and boiler room floor space. Sizing is based on service Whenever thecombination falls on the size line the larger unit should be installed. Tank Size for Steam Curing of Rubber Linings

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• ### Steam Calculators: Boiler Calculator

Mar 17 2015 · Calculation Details Step 1: Determine Properties of Steam Produced Using the Steam Property Calculator properties are determined using... Step 2: Determine Feedwater Properties and Mass Flow The feedwater flow rate can be calculated from steam mass flow and... Step 3: Determine Blowdown Properties ...

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• ### Boiler Size Calculation Industrial Boiler

Jul 04 2017 · foran accurate boiler size calculator use the link in the info box at the. Sizing Guide for Domestic Volume Water Heaters. equipment and boiler room floor space. Sizing is based on service Whenever thecombination falls on the size line the larger unit should be installed. Tank Size for Steam Curing of Rubber Linings

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• ### Air Supply to Boiler House - Engineering ToolBox

The boiler room air supply openings must be kept clear at all times. From experience the ASME rule of 1-square inch free area per 2000-btu/hr (Unit Converter) maximum fuel input of combined burners located in works. I general rounded up to the next common size.

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• ### What Size Boiler Do I Need? How To Choose The Right Boiler ...

The simplest and most reliable way is to consult your heating company engineer or plumber. With their in-depth knowledge of central heating systems they will usually conduct an in-person survey of your home to accurately calculate the boiler output that you need. We recommend getting in touch with at least 3 companies.

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• ### Heating BTU Calculator & Heaters by BTU

The rooms length width ceiling height and insulation as well as the lowest outside temperature are all considered on the Total Home Supply calculator. Once you punch in that information the calculator will tell you the BTU/hr required. Write this number down and keep it handy as you examine your options.

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• ### Boiler Sizing Calculators | Powerhouse

Each boiler is given a boiler horsepower (BHP) rating based on the steam output capacity at 212°F and 0 psig. For this calculation you will enter the steam load in pounds per hour which will be divided by a constant of 34.5. This number represents the thermal energy rate required to turn 34.5 lbs of water at 212 °F to steam in one hour.

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• ### Boiler Room Air Supply | Johnston Boiler | Top Quality ...

Boiler room located 1800 fasl and its direct outside air inlets are to be five feet above the floor level. Total maximum HP = 300 + 800 = 1100 HP Total air required = (1100) (10) = 11000 CFM Altitude correction = (11000 CFM) (1.03) = 11330 CFM 11330 Net free open area required = = 45.32 sq. ft. 250. The boiler room will require a minimum of two fresh air opening of 22.66 sq. ft. (45.32 sq. ft ) 2) net free open area.

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• ### What Size Boiler Do I Need For My House? | U.S. Boiler Company

Apr 30 2019 · There are a few different methods of calculating the BTUh needed by a home. They all tally the total amount of heat required. The most common method is called the Manual J calculation. This is a -by heat loss calculation and typically a software program is used to speed up the process.

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• ### Design of Ventilation Systems - Engineering ToolBox

to = outlet temperature (oC) where to = tr if the air in the room is mixed Example - Heating Load If the heat load is Hh = 400 W supply temperature ts = 30 oC and the room temperature tr = 22 oC the air flow rate can be calculated as: qh = (400 W) / ((1.2 kg/m3) (1005 J/kg K) ((30 oC) - (22 oC)))

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