300 Series

The 40,000 BTU/hr three vent heater is easily vented to bow and rear seating areas while the third can be ducted to the drivers seat. Our heaters are perfect for a late night boat ride, warming up after a swim or simply extending your season on the water. 

Technical Specifications

• 40,000 BTU 
• Amperage: Low 4.4, Med 5.8, High 8.5
• Maximum estimated BTU/h: 40,000
• Air flow: Low 230 cfm, Med 228 cfm, High 263 cfm.
• Hose barb: 5/8"

Dimensions: 16 W x 6.5 H x 9.5 D (without mounting brackets)

Installation Manual
Warranty

Heater Kits Include:

SPORT Kits 

• One Heater Unit w/wire harness
• One High Low switch 
• 3" Vent hose (6ft per vent)
• Two 6' Sixteen-gauge wire
• Universal mounting brackets & screws
• Heavy duty wire ties
• Installation Manual

PRO Kits - Includes everything above PLUS:

• 40 ft of Heater Hose
• One Low Idle "Y"
• brass fittings 

Elite Kits - Includes everything above PLUS:

• One Circulation Pump
• Low idle "Y" does not come with the Elite Kit

Note: Ships in 3-7days, pictures do not represent current kit configurations