MSR Hydronic Heater - Fan Heater Dual 2.5" 8000BTU | 905-12V
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Dual-Outlet Hydronic Cabin Heater
The MSR 905-12V uses a hot-water heating circuit and a 12 V fan to distribute warmth through two 2.5-inch air outlets. Its compact arrangement suits adjoining small staterooms or a stateroom and head compartment.
Key Features
- Heat-output rating: 8,000 BTU at 180°F water temperature and 3 GPM water flow.
- Two 2.5-inch outlets with adjustable air grilles.
- 3/4-inch female pipe-thread water connections and built-in air bleed.
- Includes heater, ducting, clamps and air grilles; two-speed control switch is optional.
- Dimensions: 5.75 inches high × 7 inches wide × 8.5 inches deep.
Installation Notes
Match the 12 V supply, heating-loop connections and duct routes. Allow access to the bleed vent and check for leaks after commissioning with the system supplier's instructions.
Parts Desk Insight
The heat rating depends on hot-water temperature and circulation. The 3 GPM figure describes water flow through the heater, not air delivered to the cabin.
- Brand: MSR
- Manufacturer part #: 905-12V
- 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.