Heater Craft 4 Vent Heater - Commercl Cabn Htr 4X3"VENT 12V | 340COM
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
4 Vent Heater
Commercl Cabn Htr 4X3"VENT 12V
The redesigned 300 marine heater is a three outlet intro heating system with increased air flow of 8%, is 3% lighter, and 5% smaller. This 40,000 BTU/hr four vent heater is easily vented to the bow, driver and rear seating areas while the fourth can be ducted to the windsheild and used as a defogger. These heaters are perfect for a late night boat ride, warming up after a swim or simply extending your season on the water.
Designed Use
- Any marine applications with an inboard engine incuding houseboats, cruisers, yachts, and work boats
Technical Specifications - Available in 12 volts
- 8% faster due to the new 45 degree face without increasing AMP draw or motor size
- Takes up 5% less space allowing more versatility during installation
- 3% lighter than previous models
- Amperage: High 8.5 to Low 4.4
- Max. Est. BTU/h: 40,000
- Air Flow: Low 230 cfm, High 263 cfm
- Hose barb: 5/8"
Included in the Sport System - 1 x 40,000 BTU heater 45 degree wrapper with wire harness
- Universal mounting brackets & screws
- Detailed installation manual
- Dimensions: W: 16" x H: 6.5" x D: 9.5"
- 4 Year warranty
- Brand: Heater Craft
- Manufacturer part #: 340COM
- Sold as: EA
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.