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Will a VaporStat save me money?

Dan_29 Member Posts: 111
The answer is maybe.

I am not aware of any calculations on fuel savings realized by use of a vaporstat. Nevertheless, assume for a minute, that you might save 2% of your annual fuel bill by using a vaporstat (around $40 on a $2000 annual heat bill). The cost of a vaporstat plus labor to install is $350 to $400. It would take 8-10 years to recoup the initial cost of installation before you began realizing savings payback. Does a vaporstat last that long?

My decision rule is to change to a vaporstat when my current pressuretrol dies and justity the expense by (1) realizing that I am an irrational "wallie" and (2) if I get hit by a bus tomorrow and my wife has to hire a "knucklehead" service person to maintain "my boiler" he will not be able to crank up the pressure beyond 16 ounces of psig.


PS. Vaporstat cutin (4 oz)and cut out (12 oz).


  • Big Al
    Big Al Member Posts: 35

    My home steam boiler (Burnham I6) now has a subtractive Pressuretrol. Basically, the lowest I can run it is 1/2 on to 2 PSI off. If I change it out to a Vaporstat and run it lower:

    1) Will there be any real fuel savings?

    2) Will I still have to set the pressures up a little so the intermittent pilot has time to re-light before the pressure hits zero anyway?

    Any experience anyone can share with me would be helpful.
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