boiler room window requirements ?

nyc_sport – correct. My mistake. The windows are 25″ by 25″.

landlord

in About Brooklyn 10 years and 11 months ago

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landlord | 11 years ago

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I have 2 windows in my boiler room that I would like to replace (6 family house). They both measure about 25 inches square. Are there any special requirements for these windows. Do they have to be louver windows? or can i just get dead windows (they don’t open)? I currently have dead windows that have been broken for a long time and stuffed with insulation. Thanks in advance.

ellenlourie | 11 years ago

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Boiler room and boiler inspection requirements by DOB NYC 1\. Boiler room doors must be fire rated and self closing. They must swing out from boiler- room. Not required for sealed combustion boilers. 2\. A labeled emergency switch must be installed at each boiler room door. For open basements, switch at stairs is permitted. 3\. Boiler room ceiling and walls must be enclosed. The inspector may approve a boiler replacement with small openings and write an ECB violation to the owner. Larger openings will result in first test failure. 4\. Open basements must have fire rated material over boiler a minimum of 8′ around. 5\. Must have perforated DOB plans and boiler manuals on site at t time of inspection. 6\. Plans must show boiler make, model & heat input; boiler room door swing & emergency switch; Fresh air location and size; chimney location material & size 7\. Clean outs required at base of chimney. 8\. Chimney or gas vent must terminate 2′ above parapet wall and 10′ away from higher walls. 9\. Direct vent boilers may horizontally vent 7′ above private sidewalks & driveways, 4′ below operable windows, 4′ to the side of operable windows, 3′ above forced air intakes within 10′, 3′ above grade, 1′ above doors, and 3′ from inside corners of buildings. They may not horizontally vent over a public sidewalk (4′ buffer required). Maximum of 350,000 btuh heat input for devices venting within a 10′ radius. Venting into alleyways, small courts, under overhangs & terraces, or heat input over 350,000 btuh will be handled on a case by case basis. Any heat input is permitted at roof line or top of highest floor. 10\. Fresh air intake must be directly from outdoors. Ducted combustion air supply must have a fire damper or have fire proof covering to outdoors. Direct vented devices are exempt. 11\. Motorized fresh air dampers must have an external interlock switch with all boilers. 12: Mechanical fresh air supply must have a flow switch and be interlocked with all combustion devices. 13\. Gas only boilers with heat input under 2 million btuh must have a chimney cap. 14\. Must insulate all new heating and domestic hot water piping in the boiler room. 15\. Floor drain or indirect waste pipe required for relief valve discharge, boiler drains, backflow discharge, etc. 16\. Boilers must rest on concrete base, filled concrete blocks or brick base. 17\. Must have isolation valves on heating piping lines for all boilers. 18\. Must have two low water cutoffs for every steam boiler. One must be a manual reset type. One must be a mechanical type. 19\. Must have cleanout plugs on steam pressure control piping 20\. No band iron for straps, must have hangers or rods for heating lines or flues. 21\. Blow down piping on domestic water relief lines must be copper or brass. 22\. Steam systems must have a Hartford loop. 23\. Cold water feeds must be piped into the return piping minimum 2′ from boiler.. 24\. All natural draft gas fired boilers with heat input over 350,000 btuh input going into a common chimney must have spill switches interlocked in series, 25\. All gas fired boilers with barometric dampers must swing both ways and spill switched mounted on the bottom of the damper. 26\. Dual fuel gas/oil fired devices must have the spill switch on top of the barometric damper. 27\. All natural draft boilers in individual dwelling units must have CO/smoke detector wired in series to shut down boilers if activated. 28\. All boilers with C.D.R. controls and low draft switches must be wired and working. 29\. No chimney cap on oil fired devices. 30\. Oil tanks must be removed or legally abandoned. 31\. Oil fired flue must have cleanouts every 15′ 32\. Inside oil tanks 550 and above must have shut off valve at tank and anti-syphon valve after shut off valve. 33\. Must have fire rated ceiling over inside oil tank a minimum of 3′ over oil tank. 34\. No compression fittings on oil piping 35\. Oil pump sets for #2 & # 4 must be intermittent operation. 36\. Oil fired burners firing 3 gph must have a DAR kit

landlord | 11 years ago

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Thanks Gennady. I see no mention of windows requirements.

ellenlourie | 11 years ago

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Then there are none I guess.

mozeeatupu | 11 years ago

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You need at least a 12×12 window/opening for fresh air intake or you will not pass annual inspection. **10\. Fresh air intake must be directly from outdoors.**

ellenlourie | 11 years ago

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1 square inch of clear opening per each 10,000 btuhr input. If there is Louver, usually only 50% of opening is clear. So for louvered opening it is 2 square inches per 10,000 btuhr input.

cate | 11 years ago

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So in an open basement, you leave the windows open all year for the fresh air intake? We have this same setup and it makes the floors above freezing in the winter, and probably contributes to a higher heating bill. Does anyone have any advice on the best way to arrange the fresh air intake in an open basement? Thank you.

landlord | 11 years ago

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So I have 2 dead windows measuring 25 inches square. With Louver windows ill be ok for a 250,000 btu input (50sq inches/2 sq inch= 25; 25 x 10,000btu= 250,000btu). I have to look up the output of my Weil-McLain. it should be around 250,000 btu (brownstone is 5400sq feet with 2 exposures) The boiler is in a separate dedicated room in the basement with a fireproof door. Its not an open basement. Does that make a difference?

ellenlourie | 11 years ago

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Opening is calculated based on input not output of the boiler. fresh air can be ducted to boiler area from opening. If boiler has vent damper, similar damper can be installed on fresh air supply and wired in parallel. In commercial applications motorized Louver or fan interlocked with the boiler controls are used. If boiler is located in enclosure, then 2 adequate openings must be made , one at the floor level another about 5′ above the floor, with grills and fire dampers installed. Or ducted fresh air supply installed in the same manner.

landlord | 10 years and 11 months ago

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Thank you t5i / gennady

nyc_sport | 10 years and 11 months ago

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Just to be clear, I think that there is a bit of a math problem here, as Gennady is saying “square inches,” and Landlord is saying “inches square.” It is hard to imagine that you have a 25 square inch window — that would be 5″ x 5″. If your window is 25″ x 25″, that is 625 square inches. The required fresh air intake for the boiler in my weekend house (in NYS, not NYC, built in 2010) is provided by a 4″ dryer vent hole (about 12.5 sq in).