Harman Distribution Convection Room Air Blower, 3-21-33647-AMP

Save 28%
Original Price $179.99
Current Price $129.99

A $120.00 Savings vs the OEM

SKU 3-21-33647-AMP
MPN 3-21-33647
  • After Market Part
  • Try the OEM version of this part
  • Compatible Replacement For Part 3-21-33647
  • Made By Fasco
  • Ships FREE with orders over $99
  • 30-Day hassle free return policy
  • Express Shipping available
  • 90 Day Warranty On All Items
  • Learn More...


Replacement distribution (convection) blower for Harman Pellet Stoves that use Part# 3-21-33647. 

Fits Harman Pellet Models:

Absolute 63 (2 Required)
Accentra 52i (2 Required)
Accentra 52i-TC (2 Required)
Allure 50 (2 Required)
Invincible RS
Pellet Pro II (PP2) P38 – All Models, All Years

Fits Harman Gas Models:

Clarity 929 B-Vent
Clarity 929 DV

Fits Harman Coal Models:

44 Magnum Coal Stoker
DVC 500
Mark I

Part# 3-21-22647, 3-21-33647, PP7313, AMP20146

Replacement For Part Number :
  • 3-21-33647

Compatible Models


  • Absolute 63
  • Accentra 52i
  • Accentra 52i TC
  • Advance
  • Allure 50
  • DVC 500
  • Invincible RS
  • Invincible T
  • P38
  • P38+
  • P43
  • P43-C
  • P61
  • P61-C
  • P61A
  • P68
  • PC45
  • Pellet Pro II



Unfortunately, sometimes products do not work like they are supposed to. We offer a 90 day warranty on manufacturer defects. Some manufacturers make this a very simple and easy process unfortunately others do not. Please be advised that warranty claims for these parts may take up to 4 weeks for processing, and customers must cover shipping.

Shipping Info

This Item Qualifies For Free Shipping!

When Will My Order Ship

All orders are typically processed within 24 hours of receiving payment and are shipped from us same day if placed before our shipping cutoff time (Monday - Friday: 1PM, Saturday: 10AM, Sunday: No Shipping), orders placed after our cutoff time are shipped the next morning.

How Does Free Shipping Work?

Most orders over $99 qualify for free shipping! Orders which ship for free are shipped with either USPS or UPS based on our discretion. If you are using a PO box, free shipping orders will always go USPS.

Is Expedited Shipping Available?

We offer both overnight and two day air shipping services for all orders placed within the Continental United States. For information on shipping cut-off times, go to our shipping page.

Do You Ship To Canada?

We ship to Canada! We estimate USPS to take 4-10 days once receiving your package from us. We do not offer expedited shipping of any kind to Canada. Please allow an extra 2-5 days for all shipments to Canada. Free shipping is not available to Canada.

Do You Ship To Alaska Or Hawii?

We ship to both Alaska and Hawaii! We do not offer next day or two day shipping to Alaska or Hawaii. Free shipping is not available to Alaska or Hawaii.

Do You Ship Outside The US Or Canada?

Unfortunately, at this time we do not offer international shipping other than to Canada.

If you wish to calculate shipping for an item which does not qualify for free shipping, or if you would like the cost to expedite your order, please do the following. Add the item you want to order to your cart and click here to be taken to the cart page where you can enter your country, state / province, and zip code for an estimate.

Shipping Time Estimations

For information on shipping time estimations, see either the Shipping Information & Transit Times on the cart page, or go to our shipping page.

Read More About Our Shipping Information

Please Note: Due to the COVID-19 emergency, USPS and UPS will not guarantee delivery times. Unfortunately, we will not be able to provide a refund for packages shipped which are late. Packages may be delayed 1-2 days. Everyone is trying their best under these circumstance. Thank you for your understanding.

Customer Reviews

Based on 19 reviews

After watching your informative videos, I realized my problems were stemming from my distribution blower.
After dealing with local Harman dealers and their repairmen, I feel I have never received competitive service.
I am thrilled to have discovered your videos and am grateful you have shared your expertise on so many makes and models. I will be purchasing stove piping and anything else I may need, from your company. I received my part quickly and easily at a very decent price. Thank you so much!!

Fast shipping

It was the best prize i have seen in along time.The blower works better than i old one


Next day delivery. Great product at a great price.


Just like the original works great


Was skeptical to go with an aftermarket replacement blower but this thing was more then 1/2 the price less then an oem one. Woman was so helpful, gave me instruction and service manual for my model. I was on the phone with her at least 29 minutes answering questions about my stove that she did not have to. 10 stars for customers service, fast shipping and installing a blower on my own that I would of paid someone to do. It was super easy btw.
I will be getting all my parts from here.


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