Outdoor Furnace: Complete Guide to FREE Water Testing

Outdoor Furnace: Complete Guide to FREE Water Testing

You are BUSY! But you want to protect your investment - That is SMART!

Do you want to know that your water is properly protected? Just send a water sample of your outdoor wood furnace water to our lab for FREE Testing and Analysis. This will give you peace of mind knowing that your investment is protected.

The answers to ALL questions are found in The Complete Guide to FREE Water Testingfound at this link HERE. These answers include the following:

  • Why should I use Water Treatment?
  • How much should I use?
  • What happens if I don't use Water Treatment?
  • Why Should I Submit a Water Sample?
  • How Do I Collect The Water Sample?
  • How Do I Get Water Sample Bottles?
  • Where Do I Send My Water Sample For The FREE Water Analysis Testing? (Address?)
  • ...and many more!

Just go to our new website at OutdoorBoiler.com and click on the "FREE Water Test" button in the upper right corner found here:

You can get FREE Water Testing any time of year, and as many times as you want per year. It is recommended that you test your water at least once every 12 months.

The lab will send your results via email - be sure to include your email on the bottle label! 

You made a big investment in your outdoor wood boiler system so you deserve to realize a great return on that investment! As long as you keep your water properly treated, you will be able to save big money on your heating bills for decades!

Visit our online store OutdoorBoiler.com for more outdoor wood boiler parts!

Operating Furnace FAQs:

  • Am I burning too much wood?

You may be. Is the wood properly seasoned? Have you cleared the firebox? High wood consumption can be caused by a number of factors.

  • Can I leave my Outdoor Wood Burner over the weekend?

You may have someone "feed" your furnace for you or you may lower the thermostat temperature.

  • Should I turn my thermostat down at night?

No, the lower the water temperature will cause the use of more wood to recover.

  • What are the critical items to operate and maintain my furnace efficiently?

1. Keep water full

2. Manage ash

3. Use water treatment

4. Use seasoned wood

5. Keep fire in the middle of the firebox

6. Clean tubes regularly

Maintenance FAQs

  • Why is outdoor boiler water treatment important?

The boiler chemical (corrosion inhibitor) that you would apply to your furnace water coats the inside of the furnace to reduce the effects of corrosion on the metal. 

Click HERE to order our Liquid Armor Water Treatment and other outdoor wood furnace parts. Every gallon of Liquid Armor comes with FREE 2 sample bottles. Then submit your water sample to Outdoor Boiler Lab and get Free Water Test!

  • How often do I need to Inspect my Chimney/Flue

Inspect chimney and flue monthly and clean as needed. Clean chimney and flue annually. Perform cleaning and maintenance only when no fire is present in the firebox and ashes are cooled completely.

  • Why is ash management important?

If the ash becomes wet it is corrosive to the metal of the furnace. If the level of ash is too thick in the water box it does not allow for efficient heat transfer to the water in the water jacket of the furnace. The temperature of the water in the jacket is used to heat your house.


  • Why am I not getting hot water?

Check that the hot water system is connected properly. Check if the heat exchanger is partially or totally clogged.

  • Why does My Outdoor Wood Stove continue to burn when it is not operating?

Check the door seal, door adjustment, and solenoid.

  • I can't find a leak in my furnace. Why am I losing water?

Outdoor Wood Burning Boilers use a non-pressurized system, this means that the existing heating system is exposed to the air. Since the water in the system can and will be warmer than the air, there will be evaporation of the water in the system. The water must be checked and adjusted at least once a month, sometimes more.