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Kunzel™ Indoor Wood Pellet Boiler
Frequently Asked Questions

Here are some commonly asked questions, and answers about
Kunzel™  Indoor Wood Pellet boilers.

Please click on the questions below for the corresponding answer.

If you need any further information,   Click here  to contact us.


  1.  How is the Pellet One different than your competitors products?
  2.  How do pellets compare with heating oil?
  3.  How quiet is the Pellet One when it is running?
  4.  Can the power of the Pellet One be regulated?
  5.  Is the Forced Draft fan always running?
  6.  How warm is the outer surface of the boiler?
  7.  Can the boiler be installed directly on the floor?
  8.  What can I do to avoid creosote formation? 1. How is the Pellet One different than your competitors products?

The Pellet One series is quick to install, simple to service, easy to operate and highly reliable. The overall design is centered on functionality and technically simple to operate. Back to Top
2. How do pellets compare with heating oil?

4 lbs of wood pellets have the same heating value as 1 liter of heating oil. Back to Top
3. How quiet is the Pellet One when it is running?

The Pellet One is quieter than an oil boiler. Only the transport of the wood pellets from the main storage to the integrated storage tank on the boiler causes a rattling sound. This can be reduced to a short period of time once a day. Back to Top

4. Can the power of the Pellet One be regulated??

The Pellet One runs at full boiler power until the set boiler temperature has been reached, then automatically switches to partial load mode. If the boiler temperature drops below this threshold value, the Pellet One automatically switches back to full power.

In partial load mode, the power can be decreased to around 35,000 BTU's.  Like any other wood boiler, the Pellet One reaches its optimal burning efficiency in full load mode.  Consistently running the boiler in full load mode and connecting an insulated holding tank to the system to store the residual heated water is recommended.Back to Top.

5. Is the Forced Draft fan always running?

The Forced Draft fan only operates when the boiler is running. Back to Top 6. How warm is the outer surface of the boiler?

Except for the burner door, almost no heat escapes from the boiler surface and is relatively cool and safe to touch. Back to Top 7. Can the boiler be installed directly on the floor?

The compact design, the storage tank and the low internal heat dissipation in most cases will allow installing the unit directly on the floor, no pad required. Back to Top 8. What can I do to avoid creosote formation?

Rarely is the wood boiler the cause. Critical reasons fro creosote formation include the quality and the size of the pellets burned. The use of only high-quality wood pellets is recommended. Back to Top