Outdoor Furnace: Ways To SAVE MONEY by Replacing Your Door Seal

Ways To SAVE MONEY by Replacing Your Door Seal

The Top 6 Ways You SAVE MONEY by Replacing Your Door Seal

(Ultimate Summer Shutdown Checklist Part 5 of 10)

Why A New Door Seal Is Required Every 2-3 Years 

Your door gasket ("Fire Rope" or "Door Seal") on your outdoor wood boiler must be replaced typically every 2-3 years. This is a normal maintenance routine that we highly recommend so that you can keep your outdoor boiler healthy and efficient, and this also reduces your workload. 

If your door seal is failing, AIR will leak into your outdoor wood burning boiler in the idle mode and this will cause the following problems

- Reduced efficiency

- Wastes your precious wood fuel

- Increases your workload

- Possible furnace overheating

- Possible loss of water (and water treatment!) that must be replaced

- In rare cases, damage to overheated steel, particularly the door frame

Another problem with a leaky door seal is that in the firing mode, some of your heat will escape through the door seal, rather than sending that BTUs to your home.

The process of replacing your door seal is simple - Easy Instructions are available on our website by clicking HERE.  

Remember that the door seal replacement kit requires BOTH the fire rope, AND the high temp caulk. Both items are available by clicking HERE

If you have any questions, call Us TODAY at (231) 861-8200, or visit our online store at OutdoorBoiler.com to browse for more 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 do I often clean the Afterburner Furnace?

Outdoor Wood Stoves must be cleaned every two weeks. Regardless of how dry and seasoned your wood is. if ANY cleaning step is missed, the tubes will get clogged and you will also not get proper combustion. This will lead to the Afterburner operating below 140°F.

  • How do I Clean the Lower Ash Chamber?

Use caution. Only open the lower back door when the furnace is switched to the off position. Using the provided cleaning/scraping tool, remove ash from the lower chamber as necessary, at least every week. Always remove ash into a covered, non-combustible container.

  • What to Inspect & How to Clean Filter (inside house/building)

Inspect filter for any sediment. When necessary, flush the filter by opening the Filter By-Pass valve and closing the valves on both sides of the visible flow filter. This allows the system to continue to circulate while you discharge the filter of all collected materials.

Open the ball valve on the clean water side of the filter. Then, while holding a bucket under the filter, open the valve at the bottom of the filter to flush out the stainless steel filter, and close that valve again once clear. This method generally cleans the filter without disassembly.

Open both filter valves and close the by-pass valve. This should be done once a month.

  • What do you mean by proper ash management?

The manner in which you correctly remove and position the ash in the firebox.

Remove ash and coals every week and scrape the firebox clean. Never operate your outdoor wood burner with a fire in it with the door open, except for brief periods while loading wood or removing ash. Always remove ash into a covered, non-combustible container.

Clean ash from all firebox surfaces, especially the rear plate and side plates. DO NOT ALLOW ASH TO BUILD UP ON THE STEEL SURFACES.

Always remember these maintenance items to keep your furnace system stay healthy for decades, allowing you to Stay Warm and Toasty, and Save Money on Your Heating Bills!

Coming Soon - Ultimate Summer Shutdown Checklist Part 6 of 10!