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Thread: Boiler Question

  1. #196
    Join Date
    Feb 2001
    Location
    Michigan
    Posts
    89
    You can't teach someone who knows everything.................anything!

  2. #197
    A Boiler is a closed vessel in which water or other fluid is heated. Boilers are classified by their pressure capacity, their design type and by their use. Low pressure boiler does not require an operator, but high pressure boilers require an operator during operations. Most boiler problems don't occur suddenly. They develop slowly over a long period of time. The boiler operator is responsible for operating and maintaining the boiler in a safe and efficient manner through the use of sound engineering practices and manufacturer’s specified maintenance procedures. Most boiler accidents are caused by operator error and poor maintenance.
    Last edited by Dad; 12-15-2014 at 08:54 AM.

  3. #198
    Join Date
    Jun 2007
    Location
    Minneapolis, MN
    Posts
    769
    Quote Originally Posted by SolarMike View Post
    Wow, I am surprised to see this thread go on so long, without a lot of movement from the first few pages. Anyway, while the regs can be complicated the idea is simple......A boiler runs at a specific max pressure, has safeties to ensure that it does and is designed for "closed loop circulation", or very little new water introduced to it. This makes the use of cast iron or steel rads possible.

    A water heater CAN be the same as a boiler in construction, such as the Teledyne Laars commercial water heaters and boilers, or RBI or any number of mid efficiency copper fin boilers that still are working in many apartment buildings. The difference with these water heaters is that they are meant to have oxygenated water flow through them on the way to the tap. They are typically rated for domestic water pressures, do not have some of the safeties that boilers have (low water cut off, for example) which means that typically just a high limit switch and a flow switch is necessary.

    The heat exchanger may be exactly the same one in the water heating boiler as in the space heating boiler but the jacket, gas valve, venting, operating conditions may be different. It depends on what you want to accomplish.
    And typically sport a one year warranty.

  4. #199
    Join Date
    Jun 2007
    Location
    Minneapolis, MN
    Posts
    769
    To make things worse, my European customers call water heater "boilers".

  5. #200
    Join Date
    Jun 2002
    Location
    south jersey
    Posts
    1,139
    Did you really want to bring this one back to life?
    You need to put the phone down and get back to work!

  6. #201
    Join Date
    Feb 2010
    Location
    In a boiler room
    Posts
    7,224
    OPW

  7. #202
    Join Date
    Dec 2014
    Location
    waterford pa
    Posts
    79
    cost of install , and adding ac has taken steam pretty much out of residential market large facilities where moving heat many floors and not having vent piping to deal with, a lot of reasons for steam are best fit for building use and design if you spill some steam ..you might have to mop it... spill some flue gas people die. so it makes sense that hospitals favor steam there boilers are often remote located for that and noise /safety issues .

  8. #203
    Join Date
    Jan 2010
    Location
    Cedar Rapids, IA
    Posts
    79
    Hell. With on site techs being phased out I should start retraining.
    Seriously tho, me and 8 other guys provide constant maintenance to 600k square feet. Working 6-11, we find plenty to do, and quite often it's central plant work. Just because it's new doesn't mean it won't break.
    The newest section is from 2012 and has DX RTU's with hot water heat, the older part, 1978, is either chilled water and hot water or WSHP depending on where you are. For what it's worth, the RTU'S have terrible modulation and I would prefer water. Also, being in Iowa our cold temp is -5F, tho two years ago we saw -28.

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