Warning Cookies are used on this site to provide the best user experience. If you continue, we assume that you agree to receive cookies from this site. OK

I n n o v a t i v e   M a r i n e   P r o d u c t s   f o r   t h e   I n f o r m e d   S e a f a r e r   -   S i n c e  1 9 9 5

Call Us at 952-920-8500 M-F 9A-5P CST

Please Note: Updated Monday, April 6, 2020  We are open for business as usual. Well, mostly usual. We hold and ship inventory locally as well as directly from manufacturers and from some marine distributors. We are doing our best to reflect inventory that is actually available, but inventory updates are slower than usual due to the changing work situations for all business. Additionally, we now have started to see longer than normal backorders from manufacturers. We recommend that if you need a product not to wait until the last minute to order, as inventory may be gone for a substantial period of time once they go on backorder. International orders may also take longer than normal to ship. We are sorry for these delays.

Save 10%

REAL Heat 25,000 Btu Marine Hydronic Defroster Heater W002-5433

List price: $460.19
You save: $45.85 (10%)
30 days

 REAL Defrost heater 3 @ 3" kit W002-5433

The REAL fan heater model 5433 was designed to serve as a defrost unit or to heat large outdoor areas such as a flybridge with minimal space requirement. The REAL fan heater model 5433 is rated to 25,000 BTU at 265 cfm on the high setting. The unit can be mounted with the barbs facing either direction with the dual bleeder mounts on the water connections. This unit comes with three closeable black outlets and a 10’ section of duct to be cut to size. Outlets of various other colors are separately available to complement the interior of your boat. The unit comes with fittings to install into a ¾“ hose system. Fittings to meet different sizes or PEX systems are available separately.


  • Unit height - 7.5" (8” incl. bleeder)
  • Unit width - 13"
  • Unit depth - 9 ½"
  • Amp - 9.6 amps (high)
  • Airflow - 265 cfm (high)
  • Max. Est. BTU/h - 25000
  • Weight - 8 lbs.
  • Hose Barb - ¾" NPT to ¾“ hose

This kit includes

  • Single 12v variable output motor
  • Three speed switch
  • Triple 3" outlets w/ 3’ of duct for each outlet
  • White powder coated aluminum casing

24 VDC fans optional


Related Products