Important Message from Our CEO:

Hi Patriots,
Great news! If you purchased something from in the last 12 months, you will AUTOMATICALLY receive the "2021 Outdoor Boiler Guide Book" when these are published and mailed out in the coming weeks. If you did not, but still want a FREE copy, just hit REPLY to this email and send us your name and mailing address, and we will make sure you get one!

Are you on the "Naughty List? If you have not sent us a water sample in the last 12 months, you are on Warren's "Naughty List" and you will be receiving a phone call from our office soon. 

Interpreting your water sample test results is often misunderstood, so please note the following TWO very important points:

First, if your results are UNSATISFACTORY, your computer-generated report will tell you to add ONLY enough water treatment to give you a minimum passing grade. 

But that is not enough water treatment to protect your boiler for the next 12 months!

Therefore, we recommend adding an ADDITIONAL one-half gallon - on top of what your computer-generated report tells you to add.

So if your results indicate that you should "Add 4 Cups of Liquid Armor Water Treatment", then we recommend that you actually add 12 CUPS of Liquid Armor.

Here's a cheat sheet: Remember that there are 4 cups in every quart. So 8 cups is 2 Quarts (or one-half gallon), 12 cups is 3 quarts, and there are 16 cups in a gallon of water treatment!

Second, if your results are SATISFACTORY, but your "Nitrite" or "N" reading is between 1200 and 1600, you do not have enough water treatment to protect your steel for the next 12 months! We recommend that if you have a reading in this range, that you add an additional half-gallon of water treatment to your boiler.

Remember, the GOAL is to help your boiler last for 40 years so you can get the MAX SAVINGS from your outdoor boiler! Take just a few minutes to properly treat your boiler water, and this will be an investment of time well worth the effort!

It will take no effort to enjoy this video - click HERE and laugh as hard as you want!

All the best,

PS - If you submitted a water sample lately, we will likely be calling you soon with your results. Also, if you have NOT been protecting your boiler properly with Liquid Armor water treatmentwe are worried about you and will be calling soon!  

Interpreting Your Water Sample
Test Results - Fresh Insight!
Well Done! You showed great wisdom sending a water sample to the lab for free testing and analysis. Now for some fresh insight on those results.

In 4-6 weeks after sending the sample, you will get an email with your results. That email will simply state that your results were either SATISFACTORY, or UNSATISFACTORY.

If your results were UNSATISFACTORY, please do the following:  
  1. Follow the instructions in the email, then
  2. Send us another water sample until you get a SATISFACTORY test result.
  3. If your computer-generated test results tell you to add water treatment, make SURE you add an additional one-half gallon of water treatment to what is recommended.  The computer results give the amount of water treatment needed ONLY TO GET YOU A PASSING GRADE! But you need to add an additional half gallon of water treatment to your boiler so that your system will be above that passing grade, and properly protected FOR THE NEXT 12 MONTHS, until next year when you add water treatment and test again.
If your results were SATISFACTORY, just remember the following:
  1. Print and file your test results for your records. We keep them of course, but you are ultimately responsible for keeping these records.
  2. Make a note to send another water sample to the lab within 12 months of the date you collected this last sample - NOT 12 months from the date of the report.
  3. If your test results came back with an "N" or "Nitrite" reading between 1200 and 1600, add one half gallon of Liquid Armor water treatment to your boiler! The lowest passing grade is 1200 and this extra half gallon will ensure that your system will be protected properly for the next 12 months, without dropping below that minimum passing level.

Remember that our goal is to help your outdoor boiler system save you money for 40 years or more! Follow our recommendations and you will get the MAX savings!

No Filter In Your Outdoor Boiler System?
This is YOUR Water Jacket


Sediment is the "Secret Killer" of outdoor boilers. It will eat through steel, AND cause electrolysis damage to your water jacket - holes in your boiler are very bad.

Most outdoor boiler owners already have a filter. But some dealers make the mistake of NOT recommending a filter to "get the sale". This is not wise. If you don't have a filter, this is not your fault of course if your dealer did not even tell you about it. But you still need one to protect your system. Learn more by clicking HERE.

We get calls from outdoor boiler owners whose systems are from 3 to 7 years old who need to replace all their heat exchangers at great cost. This could have been prevented if they had a filter. 

If you don't have a filter, you can install one now easily. This will reverse the damage being caused by sediment, and clean up your system perfectly!

Filter kits are available!  They include literally every component needed to install a filter, including the bypass. A bypass is required to allow the water to continue flowing while the filter is getting cleaned every month or two. Simple instructions and drawing for the filter are included with every Filter Kit. Click HERE for more info on Filter Kits.

A filter will enable you to Turn UP Your Thermostat and Still SAVE Money on your heating bills for decades with your outdoor wood boiler!

$10 OFF

Coupon Code: CHIMNEY-CAP

(Rope+Caulk) - Free Caulk (a $13 Value!)

Coupon Code: FREE-CAULK


Coupon Code: WT-FREESHIP
Your One-Stop Source
For Outdoor Boiler Info 

Our Website Has Become
The Ultimate Resource On Outdoor Boilers

Our goal at is to help you realize the best return on your investment!  We have invested MILLIONS in research, testing, and proving our designs and methods. We want YOU to benefit from all we have learned!

You made a big investment in your furnace system so you deserve to realize a great return on that investment!

Here is your exclusive access to the answers to any question you may have on your outdoor boiler:  Just click HERE, and type your question in the search bar, and your answer will appear before your eyes! This is the most powerful tool known to the Outdoor Boiler industry.

Also, learn more about how to extend the life of your outdoor boiler by visiting our DIY Section by clicking this link HERE. Here are a few examples of some of the great articles available that are trending now:  

Definitive Outdoor Boiler Ownership Guide

Complete Guide to FREE Water Testing  

3 Biggest Installation Mistakes with Your Outdoor Boiler

3 Worst Maintenance Mistakes You Can Make with Your Outdoor Boiler  

Not Getting Enough Heat or Savings? Upgrade or Redesign for FREE

Are You Losing Heat Underground? How to Test For This

World's Best Underground Insulated PEX

Don't Void Your Warranty - Top 10 Critical Reminders

EPA Rules on Outdoor Boilers Change in 2020 - Here is What You Need To Know

Top 5 Ways To Get the MAX Savings From your Boiler This Year

Top Steps To Remember When Preparing Your Wood For Winter

Protect Your Freedom To Burn Wood - 3 Smart Strategies

Don't Be THAT Guy Who Regrets Doing This - The DRY BURN Procedure

The Ultimate Summer Shutdown Checklist - New and Improved for 2019

Are You REALLY Saving Money With Your Outdoor Boiler?

Avoid Top 3 Super-FAST Killers of Outdoor Boilers

Regardless of where you are in your journey saving money by burning wood, you can benefit from having answers to your questions. This is how we can help. Here are some resources we provide:

So be sure to take advantage of all the resources we have for you. We have invested millions in research and development of outdoor boilers and nobody knows more than your experts at!

Our goal is to help you Keep Your Family Toasty Warm and Comfortable For Decades!

Don't forget to click on SUBSCRIBE for more awesome videos!
We want to welcome all new members of the Family!  You are now part of a fast-growing group of over 60,000 very wise men and women who save money by burning wood fuel.  We pride ourselves on being independent, patriotic, and hard-working. We are an important part of the backbone of America. As we stay together, we will work hard to defend our freedom to burn wood, and protect our liberties.  We warmly welcome you to our family.

Our goal at is to help you realize the best return on your investment!  You made a big investment in your furnace system so you deserve to realize a great return on that investment. Visit our online store at for all the resources you need to protect your investment. 

For access to more resources on how to EXTEND the life of your outdoor boiler and your ability to Turn UP Your Thermostat and SAVE MONEY on your heating bills, click HERE to access the Ultimate Resource On Outdoor Boilers.
Go to this link HERE:

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Pentwater Capital, LLC · 303 S Sunset Terrace · Shelby, MI 49455 · USA