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Boat Engine Compartment Heater | 400w Marine Certified Bilge Heater, Use For Winter Storage, Under RV, Freeze Protection, Well House, Campers, Greenhouses, & Boats
✅ In stock
F
Grade
Analysis Confidence
100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 15, 2026 4:07 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price sits right around what this item typically fetches.
- 📉This is the most affordable price seen in roughly three months — a solid near-term opportunity.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
1.24/20
Deal Strength
7/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
XTREME HEATERS
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓#1 Engine Compartment Heater > Our bilge heaters for boats, rv underbelly, campers, well houses, boat cabins, greenhouses & more is now 10% smaller with a 150 watt increase! Keep your boat safe!
✓Easy to Use > Self-regulating PTC Element. Turns on at 40° & off at 55°. Giving you consistent engine compartment temperatures, always. Extreme peace of mind!
✓Durable > Get a lifetime of use from the anodized case, sealed electronics module & our exclusive 58 CFM waterproof fan. Our boat bilge heater can be mounted any direction, even upside down.
✓Stay Safe > Our freeze protection heater is made for harsh, enclosed engine compartments. Exceeding Coast Guard, ABYC & MILSPEC certifications for heat, cold, moisture, & vibration. Our heaters have been in boats, rvs, etc for over 20 years now keeping them protected!
✓Advanced Freeze Protection > Features a tricolored LED indicator to make it easier for self-testing & ensuring the marine heater reads the ambient temperature accurately.
✓Includes > 15-foot marine rated 110v power cord w/ 3-prong plug. Use as a cabin heater, rv bay heater, well-house heater, boat storage heater, bilge heater, greenhouse heater, lithium warmer, & more!
✓Xtreme Heaters Promise > Our mission is to build the safest, most reliable & efficient engine compartment heater. Our marine heaters includes a 5-year manufacturers warranty.
⚙️ Specifications
Brand
Xtreme Heaters
Special Feature
Energy Efficient, Overheat Protection
Color
No Color
Form Factor
Compact
Indoor/Outdoor Usage
Outdoor
Product Dimensions
3.5"D x 5.1"W x 5.1"H
Recommended Uses For Product
Greenhouse
Mounting Type
Floor Mount
Room Type
Patio
Heating Coverage
Approximately 40-60 square feet
Burner type
Radiant
