Marine Hydronic Heaters & Accessories

29 results
CategoryBoat Cabin Accessories
CategoryBoat Heaters & Accessories
CategoryMarine Hydronic Heaters & Accessories
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Heater Craft

Marine Hydronic Heater - 200 Unit Only - Sport, Pro, Elite

SKU: 433203 | Item ID: HEA 200 ELITE UNIT

$297.50

In Stock
200 Series Heater Kit

Heater Craft

200 Series Heater Kit

Available in 3 options

$395.96 - $615.25

In Stock
340-com of Heater Craft 340 Commercial Cabin Series Heater

Heater Craft

340 Commercial Cabin Series Heater

Available in 2 options

$493.17 - $530.84

In Stock
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Heater Craft

Commericial Hydronic Cabin Heater - Grill Face Heater - 400 COM

SKU: 452577 | Item ID: HEA 400 COM

$339.98

Out of Stock
Hydronic Heaters

Heater Craft

Commericial Hydronic Cabin Heater - Grill Face Heater - 500 COM

SKU: 452578 | Item ID: HEA 500 COM

$274.99

In Stock
300 Commercial Cabin Series - 12V, 40,000 BTU

Heater Craft

300 Commercial Series Hydronic Heater Kit - 12V, 40,000 BTU

SKU: 452329 | Item ID: HEA 300 COM

$497.39

In Stock
S.S. 12 V. HEATER W/ SINGLE FAN

Dickinson Marine

Single Radex Hydronic Heater

SKU: 13608 | Item ID: DIK 00-RAD1

$270.79

In Stock
300 Pro Series Hydronic Heater Kit - 12V, 40,000 BTU

Heater Craft

300 Pro Series Hydronic Heater Kit - 12V, 40,000 BTU

SKU: 434997 | Item ID: HEA 300 PRO

$654.99

In Stock
S.S. 12 V. HEATER W/ DOUBLE FAN

Dickinson Marine

Double Radex Hydronic Heater

Available in 2 options

$373.64 - $415.17

In Stock
HEATER CORE FOR 3H & 4H UNITS

Heater Craft

3H and 4H Series Hydronic Heater Core

SKU: 124915 | Item ID: HEA H301

$195.00

In Stock
HEATER CORE 2H/5H 2004 + NEWER 5/8

Heater Craft

2H/5H Series Hydronic Heater Core

SKU: 133420 | Item ID: HEA H202

$165.00

In Stock
Blower Motor for 200 & 500 Heater Series

Heater Craft

Blower Motor for 200 & 500 Heater Series

Available in 2 options

$225.15 - $242.52

In Stock
400H Flush Mount Heater Unit Grill Face

Heater Craft

400H Flush Mount Heater Unit Grill Face

SKU: 184495 | Item ID: HEA H305B

$56.00

Special Order Only
COMPLETE FAN MOTOR ASSM. F/ 3H/4H

Heater Craft

Replacement Fan for 3H Series Hydronic Heaters

SKU: 130177 | Item ID: HEA 2-1195

$258.18

In Stock
20-005 of Dickinson Marine Low Volume Water Circulating Pump

Dickinson Marine

Low Volume Water Circulating Pump

SKU: 1005722 | Item ID: DIK 20-005

$82.50

In Stock
HEATER 12V DOUBLE BLOW 5/8IN QUIET

Red Dot

R-295 Auxiliary Single Blower Hydronic Heater - 35,000 BTU, 430 CFM

SKU: 136667 | Item ID: R/D R-295-0P

$606.28

In Stock
HEATER 12V SINGLE BLOW 5/8IN QUIET

Red Dot

R-290 Auxiliary Single Blower Hydronic Heater - 20,000 BTU, 220 CFM

SKU: 134548 | Item ID: R/D R-290-0P

$495.95

In Stock
HEATER 12 VOLT SINGLE FAN 5/8INTUBE

Red Dot

R-254 Single Fan Auxiliary Hydronic Heater - 16,000 BTU, 150 CFM

Available in 2 options

$508.98 - $559.85

In Stock
HEATER 12 VOLT DOUBLE FAN 5/8IN TUBE

Red Dot

R-255 Dual Fan Auxiliary Hydronic Heater - 30,000 BTU, 280 CFM

SKU: 27062 | Item ID: R/D R-255-10P

$615.73

In Stock
100143 of Calaer by Reformtech Heating Ignition Sensor 100143

Calaer by Reformtech Heating

Ignition Sensor 4KW

SKU: 1009937 | Item ID: RFT 100143

In Stock
100142 of Calaer by Reformtech Heating Overheating Sensor 100142

Calaer by Reformtech Heating

Overheating Sensor 4KW

SKU: 1009936 | Item ID: RFT 100142

In Stock
72r3530 of Red Dot Defrost Outlet Assemblies

Red Dot

Defrost Outlet Assemblies

Available in 2 options

$55.88 - $73.90

Special Order Only
12V CABIN HEATER SINGLE FAN 4IN

Red Dot

R-6130 Hydronic Box Heater - 28,000 BTU, 280 CFM

SKU: 138786 | Item ID: R/D R-6130-1P

$1,098.42

Special Order Only
Replacement Parts For Cabin Heater Model R-3911H

Red Dot

Replacement Parts For Cabin Hydronic Heater R3911H

Available in 3 options

$85.48 - $125.44

Special Order Only
HEATER CORE FOR R255-0

Red Dot

Hydronic Heater Core for R-255 Auxiliary Heater

SKU: 48705 | Item ID: R/D 76R1400

$293.25

Special Order Only
FAN BLADE  FOR R254-0, R255-0

Red Dot

Fan Blade for R-254 & R-255 Auxiliary Hydronic Heaters

SKU: 27066 | Item ID: R/D 73R8050

$8.20

Special Order Only
FLUSH MOUNT FRAME F/ R254

Red Dot

Flush Mount Frame for R-254 Heater

SKU: 133489 | Item ID: R/D RD-1-0363-1P

$68.43

Special Order Only
3.5IN DEFROST HOSE  (9 FEET)

Red Dot

Defrost Hose - 3-1/2" Diameter

SKU: 27059 | Item ID: R/D 78R0350

$83.29

Special Order Only
PLENUM OUTLET FOR R254

Red Dot

Plenum Outlet for R-254 Hydronic Heater

SKU: 48706 | Item ID: R/D 72R4533

$105.44

Special Order Only
1-29 results of 29

Stay Warm and Comfortable: Explore Marine Hydronic Heaters at Fisheries Supply


Enjoy the comfort and efficiency of hydronic heating on your boat

What is a Marine Hydronic Heating System?

A hydronic heating system, similar to home heating systems, uses a hydronic heater to circulate hot water through pipes to radiant heating rafts or fan units, distributing heat throughout your boat, taking moisture out of the air.

Benefits of Marine Hydronic Heating

  • High Efficiency and Energy Savings: Compared to forced air systems, hydronic heaters use less fuel to deliver comfortable warmth, making them a more energy-efficient choice.
  • Even Heat Distribution: Radiant heating rafts provide gentle and consistent warmth throughout your cabin, eliminating cold spots and drafts common with forced air systems.
  • Reduced Moisture and Mold Growth: By maintaining a warm and dry environment, hydronic heat helps prevent the growth of mold and mildew, protecting your boat's interior.
Shop Fisheries Supply for All Your Marine Hydronic Heating Needs:

At Fisheries Supply, we are your one-stop shop for everything related to marine hydronic heating, with brands like Heater Craft, Red Dot, or Dickinson Marine.
  • Variety of Marine Diesel Hydronic Heaters: Explore several marine diesel hydronic heater options from top brands to find the right one for your vessel size.
  • Essential Accessories: Ensure optimum performance and long system life with our comprehensive selection of hydraulic heater products including grill boxes and more.
  • Expert Assistance: Our knowledgeable representatives are happy to answer your questions and help you choose the right hydronic water heater for your boat.
Don’t let the cold weather keep you from getting on the water! Shop Fisheries Supply today and discover the comfort and efficiency of a marine hydraulic heating system.