1 qt. Boiler & Heating System Cleaner Zoom

1 qt. Boiler & Heating System Cleaner


Brand: Hercules

Qty Price
/ each
$142.20 / box (12 units x $11.85)
In Stock! Ships in 24-48 Hours
(39 Available)



Application: Maintenance
Size: 1 Quart
Boiling Point: 212°F
Color: Yellow

Description for Hercules 35206

This product is a liquid designed to clean and prevent corrosion of hydronic boilers and heating systems.

Product Features:

  • Removes rust and scale, emulsifies oil, grease and sludge
  • Prevents foaming
  • No draining or flushing necessary in moderately dirty boilers
  • Will not harm rubber or plastic components
  • Add to any hydronic system to prevent boiler scale build-up corrosion and clogging of heating system valves
  • Helps maximize boiler efficiency
  • Silicone additive helps purge dissolved air and provides lubrication to pumps, seals and valves
  • Compatible with Hercules cryo-tek anti-freeze, other propylene glycol-based anti-freeze products and commonly used stop-leak compounds
  • NSF registered/USDA authorized

1 qt. Boiler & Heating System Cleaner


by PowerReviews
Hercules1 qt. Boiler & Heating System Cleaner

(based on 5 reviews)

Ratings Distribution

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  • 1 Stars




of respondents would recommend this to a friend.

Reviewed by 5 customers

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Displaying reviews 1-5

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This stuff cures boiler scaling

By Mick

from Churchville, NY

Verified Buyer

Comments about 1 qt. Boiler & Heating System Cleaner:

Paid a heating contractor to cure the scaling. It lasted 3 months. I used the Hercules cleaner and was good the whole winter.
I now put in a bottle before the heating season to clean then add one when I refill the boiler. No more popping and banging when the boiler heats up.


Hercules Boiler & Heating System Cleaner

By Vern

from Golden, CO

Verified Buyer

Comments about 1 qt. Boiler & Heating System Cleaner:

I have used this product in the same cast iron boiler for approxiately 30 years.


Hercules Heating System Cleaner

By Wag

from Golden, Colorado

Verified Buyer

Comments about 1 qt. Boiler & Heating System Cleaner:

My hot water heating system boiler is approxiately 35 years old and I have been using this product as long as I can remember in the system. When my local plumbing store had no interest in supplying me this product any longer, I went to Pex Supply who immediately shipped me the system cleaner for half the price my local plumbing store has been charging me.


Very helpfull in keepin everyrhing funct


from BlandonPa

Verified Buyer

Comments about 1 qt. Boiler & Heating System Cleaner:

Very easy to use and helps keep valves and circulators working efficiently

(1 of 1 customers found this review helpful)


runs like a champ

By angelo

from maspeth ny

Verified Reviewer

Comments about Hercules 1 qt. Boiler & Heating System Cleaner:

i have a ten yr old burnham gas steam boiler and i put a half of a quart of this cleaner in every year. and my boiler runs like a champ clean . efficient and dont for get to remove old paint from your radiators and have them powder coated and youll be running a most efficient system .. when you have coats of old paint on your radiator the paint acts as an insulator and you end up using more energy and more money.. you can powder coat them in any color and it lasts a life time

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1 Question | 1 Answer
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  • 1 qt. Boiler & Heating System Cleaner


    I have on older radiant system with the line imbedded in concrete. The lines that were use are made of rubber. This was put in around the early eighties when pex was not available yet. Will this product harm the rubber lines.
    Asked on 11/13/2010 by Pete from Rogersville Mo

    1 answer



      As per the manufacturer this product is 'Safe for use in systems with rubber and plastic components". Therefore, yes you can use this product.

      Answered on 11/17/2010 by PexSupply Staff from NY
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