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WATER TREATMENT AND TESTING
Water Treatment Policy
To qualify for warranty, water must be tested a
minimum of once per year and water treatment added
when necessary.
To take a water sample:
1. Locate your water sample bottle, mailing carton
and mailing label provided to you by your dealer.
2. Open the boiler drain located at the bottom of
the rear of the furnace for 10-15 seconds or until
the water runs clear. CAUTION: Water is hot! Use
extreme care or a bucket to run water into and let
cool before collecting sample.
3. Fill one of the test bottles at least 1/2 to 2/3 full.
4. Fill out the mailing label provided with the test
bottle completely, including your email address, the
model number and serial number of your furnace.
Make sure to note if the furnace water contains any
antifreeze or additional chemicals.
5. Attach top part of label to sample bottle and
bottom part to outside of mailing tube. Place bottle
in tube.
6. Mail to our testing lab. Results can take up to 4
weeks to receive and up to 8 weeks if no email
address is on hand at Heatmaster
SS.
You will receive a water test report outlining
what must be done (if anything). If any action is
necessary, take another sample and mail it to our
test lab again to verify the recommended changes
have been made.
Add the water treatment through the fill pipe located
at the top of the furnace when initially filling the
furnace with water or after testing, if needed. Ensure
that all drains are closed. It is recommended that
water treatment is added at a 1:200 ratio when
initially firing the furnace, and add accordingly
based on the water test results. Additional treatment
may have to be added for water with more severe
properties or for systems with more chemically
demanding requirements.
Recommended operating levels are as
follows:
Conductivity:
100 - 4000 ppm
pH:
8.5 – 10. 5
Nitrates:
no less than 730 ppm
Test Parameters and What They Mean
Conductivity
Conductivity is a measurement of minerals in your
furnace water. While it is common to have minerals in
water, in excess minerals can cause many problems in
hydronic systems including scaling and corrosion.
pH
pH is measurement of alkalinity (hard or soft water).
For outdoor furnace water and the water treatment
used in outdoor furnaces it is better to have your water
a little harder than softer (recommended pH range is
8.5-10) as the active ingredients in the water treatment
neutralize harder water easier than softer water
Nitrates
Nitrates tested for are a measurement of how much
water treatment is in the water. Nitrates measured are
active units of water treatment available to neutralize
harmful elements in your furnace water. Nitrates also
act to neutralize harmful bacteria that may build up in
the furnace water over time.
Glycol
Inhibited glycol provides anti-corrosion elements
and freeze protection for outdoor furnaces and is
compatible with Outdoor Furnace Water Treatment.
Because outdoor furnaces are open to the atmosphere
systems and will have fresh water added occasionally,
oxygen is always entering the system and will break
down the glycol over time to create glycolic acid which
will harm your furnace system. When this happens
you will be required to drain and flush your furnace
system.
It is always suggested to use 100% virgin glycol
instead of recycled glycol as it will break down much
sooner and create glycolic acid.
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