Outdoor Furnace: What Speed Should Your Pump Be Set At?

 

5-Second Fix: What Speed Should Your Pump Be Set At?

 

What speed should your outdoor wood boiler pump be set at? Approximately eight years ago, most Grundfos circulator pumps came with three-speed settings. These were simply labeled I, II, and III. Which one is best?

 

15-Second Fix - The answer is pretty simple: you should set your boiler circulator pump at the lowest speed that gets the job done. Simply set the pump at the lowest speed, or the "I" speed, and see if this gets you sufficient heat. If not, increase the speed until you get the heat you need. 

 

Many applications can be properly heated with the BTUs that are provided at the lowest speed, so we recommend that you start there. EASY!

Also, visit our online store OutdoorBoiler.com if you want to order a replacement of your outdoor wood furnace circulator pump and other 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 water treatment important?

The chemical (water treatment) 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.

  • 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.

  • How Can I Change the Door Rope Gasket of My Outdoor Wood Stove?

The rope will settle in the first few months of use. Before you change the rope gasket try adjusting your door. This is easiest with two people, one to push the door against the chute and the other to adjust the bolts. Keep your door snug but not so tight that it is difficult to operate.

  • 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.

 

Troubleshooting

  • 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 furnace 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.

Be the HERO to your family and Be Prepared so you can keep your family warm and toasty while saving from your heating bills and avoiding the expense of costly repairs for your outdoor boiler!

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