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  1. #1

    Powering boiler with generator

    I'm considering how I would power my boiler to keep the house warm if our electical power was out for an extended period. My thought is to use a generator. Yes, I would isolate the boiler electronics from the house power for safety. My question is: Is generator power clean enough to not damage anything in the boiler controls. This is an older, standard efficiency boiler with a standing pilot. Are there any control boards to be concerned about?

    What is the typical arrangement for powering a boiler when the electricity fails?

  2. #2
    Join Date
    Oct 2010
    Location
    Anderson, South Carolina, United States
    Posts
    7,038
    all you probably would need to power is the circulating pump with the generator for it to work. probably less than 10amps

  3. #3
    Quote Originally Posted by jtrammel View Post
    all you probably would need to power is the circulating pump with the generator for it to work. probably less than 10amps
    I'm sure the generator will have plenty of power. My question stems from a comment made by a coworker as to whether the generator power would be clean enough (void of power spikes) to not damage any of the electronics. I don't think that my boiler has many electronics. Opinions? Is everything other than the circulating pump at the 24 V?

  4. #4
    Sorry - just realized I put this in the wrong forum. I'll repost in the AOP residential forum.

  5. #5

    Powering boiler with generator

    I'm considering how I would power my boiler to keep the house warm if our electical power was out for an extended period. My thought is to use a generator. Yes, I would isolate the boiler electronics from the house power for safety. My question is: Is generator power clean enough to not damage anything in the boiler controls. This is an older, standard efficiency boiler with a standing pilot. Are there any control boards to be concerned about?

    What is the typical arrangement for powering a boiler when the electricity fails?

  6. #6
    Join Date
    Mar 2012
    Location
    West Chester, PA
    Posts
    511
    Without knowing you specific equipment, a quick answer is that you will be fine running your boiler off of a generator. A disconnect or switch which allows you to disconnect the boiler from grid power and energize it from the generator. This is done commonly in our area with none or few provisions. Actually it is used more in server room applications in which the servers and cooling system serving them may not be allowed to go down. The electronics in most of these applications are more sensitive than a residential boiler. You should have 0 problems with this application.

  7. #7
    Join Date
    Sep 2003
    Posts
    1,675
    as an alternative to a generator I have converted some some standing pilot steam boilers to a millivolt system.

    This isn't for the diy but it can be done and function well and safely.

  8. #8
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,074
    Threads merged.

    next time, instead of making a duplicate thread, just report that you made the thread in the wrong forum, we'll move it for you.
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